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Journal articles on the topic 'Sodium Derivatives'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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1

Sultan, Mohammed Ibrahim, Ahmed M. Abdula, Rana I. Faeq, and Mahdi F. Radi. "New Pyrazoline Derivatives Containing Imine Moiety: Synthesis, Characterization and Antimicrobial Study." Al-Mustansiriyah Journal of Science 32, no. 3 (2021): 8. http://dx.doi.org/10.23851/mjs.v32i3.955.

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A new series of pyrazoline derivatives (3-10) have been synthesized and characterized on the basis of FT-IR, 1H-NMR, and Mass techniques. 1-(4-Aminophenyl)-3-(pyridin-4-yl)prop-2-en-1-one (1) as a starting material was prepared by the reaction of 4-aminoacetophenone and 4-pyridinecarboxaldehyde in ethanol, using sodium hydroxide as a catalyst. Pyrazoline derivatives 2 was obtained via the cyclization reaction of compound 1 by the action of hydrazine hydrate 80% in ethanol. The target derivatives (3-8) were obtained by the reaction of pyrazoline derivative (2) with the corresponding aldehyde in

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2

M., S. V. KHAN, AHMAD SHAMSHAD, RAM YADAV MANGE, and P. JINDAL D. "Synthesis and Study of Azatriterpenes." Journal of Indian Chemical Society Vol. 67, April 1990 (1990): 330–31. https://doi.org/10.5281/zenodo.6163407.

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Institute of History of Medicine & Medical Research, Hamdard Nagar, New Delhi-110 062 <em>Manuscript received 24 November 1988, revised 19 October 1989, accepted 21 November 1989</em> In order to obtain some biologically interesting compounds, oleanolic acid (1) was oxidised to its keto derivative (2) which was converted into the 2-hydroximino-3-one (3) and then 2,3-dihydroximino derivative (4). Compound 4 on treatment with potasssium hydroxide and ethylene glycol gave the furazan derivative (5) and on treatment with sodium hypochlorite in ethanolic sodium hydroxide gave the furoxan d

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3

Černý, Ivan, Vladimír Pouzar, Miloš Buděšínský, Pavel Drašar та Miroslav Havel. "Epimeric 17-hydroxy derivatives of 14β-androst-5-en-3β-yl acetate". Collection of Czechoslovak Chemical Communications 55, № 10 (1990): 2510–20. http://dx.doi.org/10.1135/cccc19902510.

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A new, six-step synthesis of 3β-hydroxy-14β-androst-5-en-17-one (IX) starting from 3β-hydroxyandrost-5-en-17-one has been elaborated. Reduction of acetate X with sodium borohydride afforded 17α-hydroxy-14β-androst-5-en-3β-yl acetate (XI). The corresponding 17β-derivative XIV was obtained by epimerization of 17α-O-tosyl derivative XIII with sodium nitrite in hexamethylphosphoramide. The 13C and 1H NMR spectra of 14β-androstane derivatives are discussed.

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4

Spassova, Maria K., Antonín Holý, and Milena Masojídková. "Ribonucleosides of 3-amino- and 3,5-diaminopyrazole-4-carboxylic acid and their open-chain analogues: Synthesis and reactions." Collection of Czechoslovak Chemical Communications 51, no. 7 (1986): 1512–31. http://dx.doi.org/10.1135/cccc19861512.

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Bis(trimethylsilyl) derivative of ethyl 3-aminopyrazole-4-carboxylate (VI) and tris(trimethylsilyl) derivative of ethyl 3,5-diaminopyrazole-4-carboxylate (VII) on reaction with 2,3,5-tri-O-benzoyl-D-ribofuranolyl chloride and subsequent debenzoylation afforded the respective β-D-ribofuranosyl derivatives VIIIa and Xa. Their alkaline hydrolysis led to 1-(β-D-ribofuranosyl)-3-aminopyrazole-4-carboxylic acid (VIIIc) and 1-(β-D-ribofuranosyl)-3,5-diaminopyrazole-4-carboxylic acid (Xb). The esters VIIIa and Xa were not ammonolyzed under normal conditions. Contrary to nucleosidation of the silyl der

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5

Holý, Antonín, Ivan Rosenberg, and Hana Dvořáková. "Synthesis of (3-hydroxy-2-phosphonylmethoxypropyl) derivatives of heterocyclic bases." Collection of Czechoslovak Chemical Communications 54, no. 9 (1989): 2470–501. http://dx.doi.org/10.1135/cccc19892470.

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Analogs of the antiviral 9-(S)-(3-hydroxy-2-phosphonylmethoxypropyl)adenine (HPMPA, I), containing modified heterocyclic base, were prepared from racemic or (S)-N-(2,3-dihydroxypropyl) derivatives II. Compounds II are heated with chloromethylphosphonyl dichloride (XVII), the formed chloromethylphosphonylester chlorides of compounds II react with water to give a mixture of 2'- and 3'-chloromethylphosphonyl derivatives XVIII and XIX, respectively, which on isomerization by boiling with water in the arising acidic medium affords predominantly the 3'-isomer XIX. Treatment of this isomeric mixture

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6

Farah Smaysem and Ahmed Salim. "Synthesis and Characterization of Some Heterocyclic Compounds and Evaluation of Antibacterial Activity." International Journal of Research in Pharmaceutical Sciences 11, SPL4 (2020): 2068–78. http://dx.doi.org/10.26452/ijrps.v11ispl4.4421.

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In this study, heterocyclic compounds with two nitrogen atoms are prepared by reaction of 2-aminobenzimidazole with formic acid to get amide derivatives (A), reacts with phenylhydrazine to get phenyl hydrazone derivatives (B), reacts with ethyl chloroacetate to obtain ethyl acetate derivatives (C). The derivative (D) obtains on heating in a basic medium. The (B) reacts with 2-chloroacetyl chloride to give derivatives (E). A number of Schiff bases are prepared (F, I) from reacting 2-aminobenzimidazole with benzaldehyde derivatives. The(F) reacts with propargyl bromide to give propargyl bromide

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7

Dvořáková, Hana, Antonín Holý, and Ivan Rosenberg. "Synthesis of Some 2'-C-Alkyl Derivatives of 9-(2-Phosphonomethoxyethyl)adenine and Related Compounds." Collection of Czechoslovak Chemical Communications 59, no. 9 (1994): 2069–94. http://dx.doi.org/10.1135/cccc19942069.

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To study the effect of β-substitution in 2'-alkyl derivatives of 9-(2-phosphonomethoxyethyl)adenine (Ia) on the antiviral activity or group specificity, these derivatives were synthesized. 9-(2-Hydroxyalkyl)adenines VIII were prepared by alkylation of adenine with suitably substituted oxiranes XIII or 2-hydroxyalkyl p-toluenesulfonates IV and VI. After protection of the adenine amino group by benzoylation (compounds IX) or amidine formation (compounds X), the intermediates were alkylated with diisopropyl p-toluenesulfonyloxymethanephosphonate (XI) in the presence of sodium hydride. After depro

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8

M.G., Assy, Abdalha A.A., and Abdel Aziz A.E. "Synthesis and Antimicrobial Evaluation of Some New Benzoxazinone and Quinazolinone Derivatives." JOURNAL OF ADVANCES IN CHEMISTRY 8, no. 1 (2016): 1491–99. http://dx.doi.org/10.24297/jac.v8i1.4030.

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Ring opening reactions of benzoxazinone (2) with nitrogen and oxygen nucleophiles gave the corresponding benzamides (3)&(4) and benzoates (5).Quinazolinone derivatives (6) and (7) were obtained upon treatment of (2) with hydrazine hydrate and/or hydroxylamine hydrochloride.Triazole derivatives (8a – b) were obtained when (2) was subjected to react with semicarbazide and/or thiosemicarbazide respectively. Reaction of (2) with sodium azide gave a mixture of tetrazole derivative (9) and benzoimidazolone derivative (10). The antimicrobial activity of some synthesized compounds was examined aga

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9

Patel, H. S., and H. D. Desai. "Synthesis of Some New Azetidinone Derivatives Containing Aryl Sulfonyloxy Group." E-Journal of Chemistry 1, no. 4 (2004): 194–98. http://dx.doi.org/10.1155/2004/258752.

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Some novel azetidinone derivatives containing aryl sulfonyloxy group have been prepared. The 4-sulfonyloxy aniline derivative (2) has been prepared by reaction of 4-nitro phenol (sodium salt) with N-acetyl sulfanilyl chloride (ASC) followed by hydrolysis by ethanolic HCl. This compound (2) undergoes facile condensation reaction with aromatic aldehydes to yield different Schiff’s bases (3a-h). Cyclocondensation of compounds (3a-h) with chloro acetyl chloride yields different 2-azetidinone derivatives (4a-h).

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10

H. Naser, Noor, Monther F. Mahdi, Tagreed N-A Omar, and Amar A. Fadhil. "Synthesis and Preliminary Pharmacological Evaluation of New Analogues of Diclofenac as Potential Anti-inflammatory Agents." Iraqi Journal of Pharmaceutical Sciences ( P-ISSN: 1683 - 3597 , E-ISSN : 2521 - 3512) 20, no. 1 (2017): 25–32. http://dx.doi.org/10.31351/vol20iss1pp25-32.

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A group of amine derivatives [4-aminobenzenesulfonamide derivatives, 2-aminopyridine and 2-aminothiazole] incorporated to Î±-carbon of diclofenac a well known non-steroidal anti-inflammatory drug (NSAID) to increase bulkiness were designed and synthesized for evaluation as a potential anti-inflammatory agents with expected COX-2 selectivity. In vivo acute anti-inflammatory activity of the selected final compounds (9, 12 and 13) was evaluated in rats using egg-white induced edema model of inflammation in a dose equivalent to (3 mg/Kg) of diclofenac sodium. All tested compounds produced a signif

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11

Duggan, BM, RL Laslett, and JFK Wilshire. "Studies in Thiohydantoin Chemistry. I. Some Aspects of the Schlack-Kumpf Reaction." Australian Journal of Chemistry 49, no. 5 (1996): 541. http://dx.doi.org/10.1071/ch9960541.

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An investigation has been carried out into the Schlack-Kumpf reaction, i.e., the reaction of amino acids with a mixture of acetic anhydride, acetic acid and sodium thiocyanate (occasionally ammonium thiocyanate was used). Particular emphasis was placed on the reactions with amino acids containing sensitive or functional side chains, i.e., serine, threonine , arginine , proline , lysine, histidine , cysteine , and aspartic and glutamic acids. The reaction of serine, and of certain of its O- and N-substituted derivatives, takes an unusual course to give an acetylated thiohydantoin derivative of

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12

Radhi Shahood, Anwar, and Zainab Muhsin Bdaiwi. "Synthesis and Evaluation of the Biological Activity of Heterocyclic Derivatives Containing the 1,3,4 Thiadiazole Ring." University of Thi-Qar Journal Of Medicine 28, no. 2 (2024): 259–76. https://doi.org/10.32792/jmed.v28i2.586.

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In this article: A series of new heterocyclic molecules with five and six members were prepared from 1,3,4-thiadiazole derivative with a terminal primary amine group and was used to synthesize a Schiff base (6) by interaction with 5-chloro salicylaldehyde and using ethanol as a solvent. After that, it was able to prepare numerous chemical compounds utilizing the Schiff base. Which contains a C=N group with (2-aminobenzoic acid, 2-mercaptobenzoic acid, valine, alanine, and sodium azide) to prepare hydroqinazoline (6a), thiazinone derivative (6b), and imidazolidine derivatives, (6c,6d). TLC foll

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13

Sycheva, Ye S., M. S. Mukanova, and T. M. Seilkhanov. "CHEMICAL MODIFICATION OF NAFTALINE-1-IL-BIS(SODIUM CARBAMODITHIOATE)." Chemical Journal of Kazakhstan 77, no. 1 (2022): 87–96. http://dx.doi.org/10.51580/2022-1/2710-1185.59.

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Interest in numerous naphthylamine derivatives is due to a wide range of their biological activity (growth-stimulating, antimicrobial, anticancer, antiviral, antihypertensive, antidiabetic, etc.). The aim of the workis the synthesis of biologically active N,S,O-containing substances in the series of acetylenic, alkoxy- and aroxyalkyl esters of naphthylamine. Study of acylation, propargylation and alkylation reactions of naphthalene-1-yl-bis(sodium carbamodiothioate). Methodology. New derivatives of naphthylbisdithiocarbamic acid were synthesized as a result of the modification of disubstituted

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14

Giles, D., M. S. Prakash, and K. V. Ramseshu. "Synthesis and Biological Evaluation of Substituted Thiophenyl Derivatives of Indane-1, 3-Dione." E-Journal of Chemistry 4, no. 3 (2007): 428–33. http://dx.doi.org/10.1155/2007/865470.

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Indane-1, 3-dione (1) synthesized by condensation of diethyl phthalate and ethyl acetate in presence of sodium ethoxide gave sodium salt of ester derivative, which on neutralization in presence of sulphuric acid afford1. Various thiols where converted to their respective disulphide (3) which on treatment with1gave 2-substituted thio phenyl derivatives (4a-g) of1. The synthesized compounds were characterized on the basis of I.R and H1NMR. Synthesized compounds (4a-g) were investigated for their anticoagulant, analgesic, anti-inflammatory, antifungal, antibacterial and anticancer activities. Som

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15

M.A., EI-Sekily, E. Elba M., and S. Fouad F. "Some heterocycles from dehydro-L-ascorbic acid and dehydro-D-isoascorbic acid." Journal of Indian Chemical Society Vol. 77, Mar 2000 (2000): 168–71. https://doi.org/10.5281/zenodo.5867557.

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Department of Chemistry, Faculty of Science, Alexandria, Egypt Department of Physics and Chemistry, Faculty of Education, Damanhour, Alexandria University, Egypt <em>Manuscript received 5 January 1999, revised 7 September 1999, accepted 13 September 1999</em> Reaction of D-<em>erythro</em>-2,3-hexodiulosono-1,4-lactone-2-phenylhydrazone 1 with <em>p</em>-sulfamylphenylhydrazine gives the 3-<em>p</em>sulfamylphenylhydrazone 2, which upon treatment with hydrazine hydrate or CuCl<sub>2</sub> affords pyrazolinedione 4 or 3,6-anhydro derivative 6, respectively. Condensation of the aldehyde 8 w

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16

Journal, Baghdad Science. "Synthesis of New Heterocyclic Derivatives from 4-(3, 5-Dimethyl-1-phenyl-1H-pyrazol-4-ylazo)- benzoic acid." Baghdad Science Journal 7, no. 1 (2010): 727–36. http://dx.doi.org/10.21123/bsj.7.1.727-736.

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In this work pyrazolin derivatives were prepared from the diazonium chloride salt of 4-aminobenzoic acid. Azo compounds were prepared from the reaction of an ethanolic solution of sodium acetate and calculated amount of active methylene compound namely, acetyl acetone to obtain the corresponding hydrazono derivative (1). Cyclocondensation reaction of compounds (1) with hydrazine hydrate and phenyl hydrazine in boiling ethanol affording the corresponding pyrazoline-5-one derivatives of 4-aminobenzoic acid (2,3). Then compound (3) was reacted with thionyl chloride to give the corresponding acid

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17

Khalil, El-Galil, Moged Berghot, and Mostafa Gouda. "Design, synthesis and antibacterial activity of new phthalazinedione derivatives." Journal of the Serbian Chemical Society 76, no. 3 (2011): 329–39. http://dx.doi.org/10.2298/jsc091122028k.

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Dibenzobarrelene (1) was utilized as the key intermediate for the synthesis of some new 2-substituted (1,4-dioxo-3,4,4e,5,10,10ahexahydro- 1H-5,10-benzeno-benzo[g]phthalazine: 2, 5a-d, 8a-c and 10. Condensation of 2 with benzaldehyde or anisaldehyde gave the corresponding acrylonitrile derivative 3a, b, respectively. Thiophene derivatives 4a, b were obtained via the Gewald reaction of 2 with cyclohexanone or pentanone, respectively. Treatment of 5d with acetyl chloride or p-toluenesulfonyl chloride afforded the corresponding esters 6, 7, respectively. Cyclization of 8a-c with formalin afforded

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18

Khalifa, Nagy M., Ahmed M. Naglah, Mohamed A. Al-Omar, Mohamed H. Abo-Ghalia, and Abd El-Galil E. Amr. "Synthesis and Reactions of New Chiral Linear Carboxamides with an Incorporated Peptide Linkage Using Nalidixic Acid and Amino Acids as Starting Materials." Zeitschrift für Naturforschung B 69, no. 3 (2014): 351–61. http://dx.doi.org/10.5560/znb.2014-3282.

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4bA series of chiral linear carboxamide derivatives (2- 15) with an incorporated peptide linkage have been prepared via the coupling of 1-ethyl-1,4-dihydro-7-methyl-4-oxo-quinoline-3-carboxylic acid (nalidixic acid, 1) with appropriate amino acid methyl esters. Coupling of 1 with amino acid methyl esters gave the corresponding peptide methyl esters 2, which were hydrolyzed with methanolic sodium hydroxide to the corresponding acids 3. Hydrazinolysis of esters 2with hydrazine hydrate afforded the corresponding acid hydrazide derivatives 4. The latter compounds were coupled with appropriate alde

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19

Abdullah, Jasim Ali, and Muwafaq Ayesh Rabeaa. "Grinding-Assisted Synthesis of Some Heterocyclic Compounds." Asian Journal of Chemistry 32, no. 7 (2020): 1713–18. http://dx.doi.org/10.14233/ajchem.2020.22268.

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This article involves synthesis of some heterocyclic compounds from an amine derivative using ecofriendly approach (grinding). The first step involves synthesis of Schiff base from benzaldehyde derivatives (3-hydroxybenzaldehyde and 4-nitrobenzaldehyde) with 4-aminoantipyrine. These compounds were used as precursor for the synthesis of heterocyclic compounds and then synthesized tetrazole, oxazepine oxazepane derivatives from Schiff base with sodium azide, phthalic anhydride, maleic anhydride and succinic anhydride, respectively. The heterocyclic compounds were characterized by TLC, melting po

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20

Pert, DJ, and DD Ridley. "Preparations of 2,4-Disubstituted Oestradiols." Australian Journal of Chemistry 42, no. 3 (1989): 421. http://dx.doi.org/10.1071/ch9890421.

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2,4-Dibromoestra-1,3,S(10)-triene-3,17 β- diol 3-(2'-hydroxyethyl) ether (8) undergoes reaction with copper(11) chloride/sodium methoxide to afford a 4-bromo [2,3]- dioxan derivative (9) as the major product together with a minor amount of a 2-bromo [3,4]- dioxan derivative (10). These compounds were used to prepare a number of 2,4-disubstituted oestradiol derivatives. � Alternative routes to other 2,4-disubstituted oestradiols are described.

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21

Palomo, M. E., M. P. Ballesteros, and P. Frutos. "Analysis of diclofenac sodium and derivatives." Journal of Pharmaceutical and Biomedical Analysis 21, no. 1 (1999): 83–94. http://dx.doi.org/10.1016/s0731-7085(99)00089-8.

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22

Yamano, Yoshi, and Harinantenaina L. Rakotondraibe. "Understanding the Biosynthesis of Paxisterol in Lichen-Derived Penicillium aurantiacobrunneum for Production of Fluorinated Derivatives." Molecules 27, no. 5 (2022): 1641. http://dx.doi.org/10.3390/molecules27051641.

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The U.S. endemic lichen (Niebla homalea)-derived Penicillium aurantiacobrunneum produced a cytotoxic paxisterol derivative named auransterol (2) and epi-citreoviridin (6). Feeding assay using 13C1-labelled sodium acetate not only produced C-13-labelled paxisterol but also confirmed the biosynthetic origin of the compound. The fluorination of bioactive compounds is known to improve pharmacological and pharmacokinetic effects. Our attempt to incorporate the fluorine atom in paxisterol and its derivatives using the fluorinated precursor sodium monofluoroacetate resulted in the isolation of 7-mono

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23

SHISHKIN, E. V., O. V. ANISHCHENKO, M. A. SHEVCHENKO, and A. V. CHERIKOV. "STEPWISE SYNTHESIS OF ACYLATED N-PHOSPHORYLATED MALONODIIMIDATES." IZVESTIA VOLGOGRAD STATE TECHNICAL UNIVERSITY, no. 5(288) (May 2024): 45–48. http://dx.doi.org/10.35211/1990-5297-2024-5-288-45-48.

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A stepwise synthesis of acylated N-phosphorylated malonodiimidates is proposed. N-phosphorylated malonic acid imidates were used as starting compounds. At the first stage of synthesis, sodium derivatives of N-phosphorylated imidates were obtained, at the second stage, the corresponding acylated compounds were obtained by interaction of sodium derivatives with acyl chloride. For acylated derivatives of N-phosphorylated malonic acid imidates, inhibition of acetylesterase, esterase hydrolase, kutinase, and other enzymes is predicted with high probability.

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24

Attanasi, Orazio A., Lucia De Crescentini, Franco Serra-Zanetti та Elisabetta Foresti. "Study of the reaction between conjugated azoalkenes and α-unsubstituted- or α-substituted-β-dicarboxylate derivatives: an improved preparation of unknown polyfunctionalized 1-amino-1H-pyrrol-2(3H)-ones". Canadian Journal of Chemistry 72, № 11 (1994): 2305–11. http://dx.doi.org/10.1139/v94-293.

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In the presence of sodium methoxide in catalytic amounts, conjugated azoalkenes easily react with α-unsubstituted-or α-sub-stituted-β-dicarboxylate derivatives to give at first hydrazonic derivatives, by 1,4-conjugate addition, and, by increasing sodium methoxide up to stoichiometric amounts, new polyfunctionalized 1-amino-1H-pyrrol-2(3H)-ones.

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25

Vystrčil, Alois, Václav Křeček, Jiří Protiva, and Miloš Buděšínský. "Anhydrobetulin and its derivatives." Collection of Czechoslovak Chemical Communications 56, no. 4 (1991): 886–904. http://dx.doi.org/10.1135/cccc19910886.

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The structure of anhydrobetulin II and its derivatives I, III and IV has been solved using 1H and 13C NMR spectra, mass spectra and chemical transformations. It has been proven that in addition reactions the trisubstituted double bond is attacked selectively from the α-side under formation of D/E cis-annelated derivatives VIII, X and XI. The 22-oxo derivative XIII exhibits an anomalous Cotton effect and, in contrast to its saturated analogue XXVII,it is not epimerized in alkaline medium. Trinordiketone XXI easily epimerizes to a mixture in which the 17βH-epimer XXIb predominates, trinorketone

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26

Paquet, A., and K. Rayman. "Some N-acyl-D-amino acid derivatives having antibotulinal properties." Canadian Journal of Microbiology 33, no. 7 (1987): 577–82. http://dx.doi.org/10.1139/m87-100.

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Several N-acyl derivatives of D-tryptophan, D-alanine, D-methionine, D-valine, and D-aspartic acid were synthesized in high yields using the succinimidyl ester method and examined for their antibotulinal properties. In conjunction with 60 ppm of sodium nitrite, sorbyl-D-tryptophan, sorbyl-D-alanine, myristoyl-D-aspartic acid, and glycyl-D-alanine were highly inhibitory. In the absence of sodium nitrite, the N-acyl derivatives of the D-amino acids were not inhibitory. On its own, 60 ppm of sodium nitrite was only slightly inhibitory. Sorbyl-L-tryptophan and sorbyl-L-alanine had no effect in the

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27

Jindřich, Jindřich, Hana Dvořáková, and Antonín Holý. "Synthesis of Isomeric N-(3-Fluoro-2-hydroxypropyl) and N-(2-Fluoro-3-hydroxypropyl) Derivatives of Purine and Pyrimidine Bases." Collection of Czechoslovak Chemical Communications 57, no. 7 (1992): 1466–82. http://dx.doi.org/10.1135/cccc19921466.

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Reaction of fluoromethyloxirane (III) with heterocyclic bases in the presence of potassium carbonate afforded N-(3-fluoro-2-hydroxypropyl) derivatives of adenine (VI), 3-deazaadenine (VII), 2-amino-6-chloropurine (XII), 6-nitro-1-deazapurine (IX), 4-methoxy-2-pyrimidone (XVIII) and its 5-methyl derivative (XIX). Acid hydrolysis of compounds XII, XVIII, and XIX gave 9-(3-fluoro-2-hydroxypropyl)guanine (XIII), 1-(3-fluoro-2-hydroxypropyl)uracil (XX) and -thymine (XXI). The intermediates XVIII and XIX were ammonolyzed to give 1-(3-fluoro-2-hydroxypropyl)cytosine (XXII) and -5-methylcytosine (XXII

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28

M. T. Tawfiq. "Synthesis and Characterization of Some New Heterocyclic Compounds Via Unsaturated Ketone with Evaluating of Their biological Activity." Journal of the College of Basic Education 21, no. 88 (2023): 49–76. http://dx.doi.org/10.35950/cbej.v21i88.9952.

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This work includes preparing of some new derivatives of pyrimidine , pyrazole , and isoxazole from the reaction between  benzylideneacetophenone (chalcone) (1) and hydrazine derivatives in the presence of sodium acetate and dry acetone to obtain heterocyclic compounds (2-6).  Reaction of (2) with different substituted benzaldehydes in absolute ethanol and drops of glacial acetic acid gave Schiff bases derivatives (8- 10) respectively. Schiff bases (8-10) were reacted with sodium azide in THF to give tetrazole derivatives (11-13). Reac

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29

Khalifa, Nagy M., Ahmed M. Naglah, Mohamed A. Al-Omara, and Abd El-Galil E. Amr. "Synthesis and Reactions of New Chiral Linear Dipeptide Candidates Using Nalidixic Acid as Starting Material." Zeitschrift für Naturforschung B 69, no. 6 (2014): 728–36. http://dx.doi.org/10.5560/znb.2014-4031.

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A series of dipeptide heterocyclic derivatives 4-15 were synthesized using methyl 2-{[(1-ethyl- 7-methyl-4-oxo-1,4-dihydro-1,8-naphthyridin-3-yl)carbonyl]amino}-3-ethylbutanoate (3) as starting material. Treatment of 3 with L-phenylalanine methyl ester hydrochloride afforded the corresponding dipeptide methyl ester derivative 4, which was treated with hydrazine hydrate to afford the dipeptide acid hydrazide 5. Compound 5 was coupled with aldehyde and acetophenone derivatives to afford the corresponding Schiff bases 6a-f. The hydrazide derivative 5 was reacted with ethyl acetoacetate or acetone

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30

Saadi, Lina, and Shaimaa Adnan. "Synthesis, Antibacterial and Antioxidant Evaluation of 2-Substituted-4-arylidene-5(4<i>H</i>)-oxazolone Derivatives." Indonesian Journal of Chemistry 23, no. 5 (2023): 1463. http://dx.doi.org/10.22146/ijc.83052.

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In this research, the synthesis of new substituted oxazolone derivatives is described via Erlenmeyer synthesis of N-acyl amino acid. Firstly, the azo derivative 1 was prepared by coupling the diazonium salt of 3-amino-4-methoxybenzoic acid with 4,5-dichloroimidazole in sodium hydroxide solution. Benzoyl chloride derivative 2, the key intermediate of the synthesis, was synthesized by the acylation of azo-carboxylic acid derivative 1 with thionyl chloride. The resulting acyl chloride derivative reacted with glycine in a basic catalyst to form a hippuric acid derivative 3. After that, oxazolone d

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31

Pereira, J., F. A. Agblevor, and S. H. Beis. "The Influence of Process Conditions on the Chemical Composition of Pine Wood Catalytic Pyrolysis Oils." ISRN Renewable Energy 2012 (December 19, 2012): 1–9. http://dx.doi.org/10.5402/2012/167629.

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Pine wood samples were used as model feedstock to study the properties of catalytic fast pyrolysis oils. The influence of two commercial zeolite catalysts (BASF and SudChem) and pretreatment of the pine wood with sodium hydroxide on pyrolysis products were investigated. The pyrolysis oils were first fractionated using column chromatography and characterized using GC-MS. Long chain aliphatic hydrocarbons, levoglucosan, aldehydes and ketones, guaiacols/syringols, and benzenediols were the major compounds identified in the pyrolysis oils. The catalytic pyrolysis increased the polycyclic hydrocarb

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32

Wang, Yunxiao, Xiaoliang Mi, Yuan Du, et al. "Design, Synthesis, and Anti-Inflammatory Activities of 12-Dehydropyxinol Derivatives." Molecules 28, no. 3 (2023): 1307. http://dx.doi.org/10.3390/molecules28031307.

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Pyxinol skeleton is a promising framework of anti-inflammatory agents formed in the human liver from 20S-protopanaxadiol, the main active aglycone of ginsenosides. In the present study, a new series of amino acid-containing derivatives were produced from 12-dehydropyxinol, a pyxinol oxidation metabolite, and its anti-inflammatory activity was assessed using an NO inhibition assay. Interestingly, the dehydrogenation at C-12 of pyxinol derivatives improved their potency greatly. Furthermore, half of the derivatives exhibited better NO inhibitory activity than hydrocortisone sodium succinate, a g

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33

Alexander, Petr, and Antonín Holý. "General Method of Preparation of N-[(S)-(3-Hydroxy-2-phosphonomethoxypropyl)] Derivatives of Heterocyclic Bases." Collection of Czechoslovak Chemical Communications 58, no. 5 (1993): 1151–63. http://dx.doi.org/10.1135/cccc19931151.

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Reaction of (R)-1-O-p-toluenesulfonyl-1,2,3-propanetriol (IV) with N-trimethylacetylimidazole (II) afforded (R)-1-O-p-toluenesulfonyl-3-O-trimethyacetyl-1,2,3-propanetriol (V) which was reacted with dimethoxymethane in the presence of phosphorus pentoxide to give (R)-2-O-methoxymethyl-1-O-p-toluenesulfonyl-3-O-trimethyacetyl-1,2,3-propanetriol (VI). Compound VI was treated with acetic anhydride and boron trifluoride etherate and the obtained 2-acetoxy derivative VII reacted with bromotrimethylsilane to give the intermediary bromomethyl ether VIII. Compound VIII on reaction with tris(2-propyl)

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34

Böhm, Stanislav, Renata Prantová, David Šaman, Petr Trška, and Josef Kuthan. "Reaction of some nucleophiles with 2,6-di-tert-butylpyrylium perchlorate." Collection of Czechoslovak Chemical Communications 52, no. 5 (1987): 1305–14. http://dx.doi.org/10.1135/cccc19871305.

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The title compound IV reacted with sodium borohydride to give the 4H-pyran VIIa and the dienone VIIIa whereas its reaction with sodium cyanide afforded exclusively the dienone VIIIb. Reaction of the salt IV with tert-butylmagnesium chloride or bromide gave a mixture of the 4H-pyran VIIa and the corresponding 4-tert-butyl derivative V. Upon treatment with hydrogen sulfide and hydrogen chloride, this mixture afforded 2,4,6-tri-tert-butyl-4H-thiopyran XI whereas aromatization with chloranil and subsequent reaction with ammonium acetate resulted in 2,4,6-tri-tert-butylpyridine (X). Analogously, th

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35

Kantlehner, Willi, Markus Vettel, and Bernhard Eppinger. "Orthoamide und Iminiumsalze, LXXVI [1]. Ein weiterer Beitrag zur Chemie der Trialkoxyacetonitrile/ Orthoamides and Iminium Salts LXXVI [1]. A Further Contribution to the Chemistry of Trialkoxyacetonitriles." Zeitschrift für Naturforschung B 67, no. 4 (2012): 373–88. http://dx.doi.org/10.1515/znb-2012-0412.

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An improved procedure for the preparation of trimethoxyacetonitrile (3a) starting from trichloroacetonitrile and sodium methanolate is described. Carbanions, obtained by the action of sodium hydride on nitriles, ethyl acetate and methylketones, react with trialkoxyacetonitriles 3 to give α- imino-orthocarboxylic acid trialkylesters 12, 14 and 20, which form an equilibrium with the tautomeric enamines 13, 15 and 21. The enamines 21 react with N,N-dimethylformamide dimethylacetal (24) to give amidines 25 which are cyclized to pyridinium salts 28 and 29 on treatment with benzyl bromide and acetyl

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36

Paterson, Alisa R., Hajime Nagata, Xiaoli Tan, et al. "Relaxor-ferroelectric transitions: Sodium bismuth titanate derivatives." MRS Bulletin 43, no. 8 (2018): 600–606. http://dx.doi.org/10.1557/mrs.2018.156.

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37

Sumida, Toshiaki, Shigeru Kikuchi, and Kimiaki Imafuku. "Bromination of Azulene Derivatives with Sodium Monobromoisocyanurate." Synthetic Communications 34, no. 23 (2004): 4273–84. http://dx.doi.org/10.1081/scc-200039351.

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38

Titova, S. N., G. A. Domrachev, E. A. Gorina, et al. "Interaction of sodium fullerene derivatives with trimethylchlorosilane." Physics of the Solid State 48, no. 5 (2006): 1000–1006. http://dx.doi.org/10.1134/s1063783406050301.

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39

Koshchienko, Yu V., G. P. Shapkina, and B. A. Tertov. "Sodium derivatives of 1-methyl-2-alkylimidazoles." Chemistry of Heterocyclic Compounds 30, no. 6 (1994): 743–44. http://dx.doi.org/10.1007/bf01166321.

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40

Keshavarz, Raziyeh, Mahnaz Farahi, and Bahador Karami. "Efficient and Facile Synthesis of Chromenopyrano[2,3-b] pyridine Derivatives Catalyzed by Sodium Carbonate." Acta Chimica Slovenica 68, no. 2 (2021): 332–40. http://dx.doi.org/10.17344/acsi.2020.6266.

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In this research, a number of new and known chromenopyrano[2,3-b]pyridine derivatives have been prepared. Initially, according to the reported procedure, pyrano[2,3-c]chromene derivatives were synthesized by the reaction between 4-hydroxycoumarin, aromatic aldehydes and malononitrile using silica sodium carbonate (SSC) as the catalyst. Next, the prepared pyrano[2,3-c]chromenes were reacted by dimethyl acetylenedicarboxylate (DMAD) or cyclohexanone in the presence of sodium carbonate to produce chromenopyrano[2,3-b]pyridine derivatives. The presented protocol avoids the use of expensive catalys

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41

Rekaby, Manal Moustafa, Ibrahim Abd El-Thalouth, Adel A. H. Rahman, and Shabaan Abd El-Satar El-Khabery. "Technological evaluation of carboxymethyl sesbania galactomannan gum derivatives as thickeners in reactive printing." BioResources 5, no. 3 (2010): 1517–29. http://dx.doi.org/10.15376/biores.5.3.1517-1529.

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Galactomannan gum isolated from the seeds of sesbania was subjected to chemical modification via carboxymethylation in non-aqueous medium using monochloroacetic acid under the catalytic action of sodium hydroxide. The obtained derivatives were subjected to measuring the degrees of substitution (D.S.), rheological properties of their pastes, and evaluated as thickeners in printing cotton fabrics with reactive dyes. Highly substituted derivatives could be used successfully as thickening agents in printing cotton fabrics either alone or in admixture with sodium alginate. Prints acquire soft handl

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42

Ramesh, Baboo. "Ru (III) Catalysed Oxidative Degradation of Sodium Bisulphite Derivatives of Aromatic Aldehydes by Potassium Hexacyano Ferrate (III) in Aqueous Alkaline Medium." International Journal of Current Research and Review 14, no. 19 (2022): 17–20. http://dx.doi.org/10.31782/ijcrr.2022.141903.

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Introduction: The catalysed oxidation of the derivatives of aromatic aldehydes with inorganic moieties is still unstudied with an economically cheaper oxidant like potassium hexacyanoferrate (III). The catalyst like ruthenium (III) chloride is very much effective at very low concentrations for oxidation reactions. Aims: The study is carried out to observe and to get the results about the oxidative degradation of derivatives of organic and inorganic moieties. Methodology: Benzaldehyde sodium bisulphite (BSS) and substituted aromatic aldehyde sodium bi sulphite like p-chloro benzaldeyde sodium b

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43

Ghalia, Mohamed H., Mohamed Abd El-Hamid, Mohamed A. Zweil, Abd El-Galil E. Amr, and Shimaa A. Moafi. "Synthesis and Reactions of New Chiral Linear and Macrocyclic Tetraand Penta-peptide Candidates." Zeitschrift für Naturforschung B 67, no. 8 (2012): 806–18. http://dx.doi.org/10.5560/znb.2012-0116.

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9a A series of linear and macrocyclic pentapeptide derivatives have been prepared via the coupling of pyridine-2,6-dicarboxylic acid (1) or pyridine-2,6-dicarbonyl dichloride (2) with appropriate amino acid methyl esters. The coupling of 1or 2with aminoacid methyl esters gave the corresponding pyridine dipeptide methyl esters 3, which were hydrolyzed with sodium hydroxide to the corresponding acids 4. The latter compounds 4were coupled with other amino acid methyl esters to afford the corresponding tetrapeptide esters 5, which were hydrolyzed with sodium hydroxide to the corresponding acids 6.

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44

Bibik, I. V., E. Yu Bibik, A. A. Pankov, K. A. Frolov, V. V. Dotsenko, and S. G. Krivokolysko. "Study of anti-inflammatory and antinociceptive properties of new derivatives of condensed 3-aminothieno[2,3-b]pyridines and 1,4-dihydropyridines." Acta Biomedica Scientifica 8, no. 4 (2023): 220–33. http://dx.doi.org/10.29413/abs.2023-8.4.24.

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Background. α-сyanothioacetamide derivatives are promising targets for the search for effective and safe antinociceptive agents with antipyretic and antiexudative activity. The aim. To conduct in vivo experimental study of anti-inflammatory and analgesic effects of new thienopyridines and 1,4-dihydropyridines derivatives. Materials and methods. The synthesized cyanothioacetamide derivatives were subjected to virtual bioscreening using Swiss Target Prediction online service. 140 laboratory rats were randomly distributed into intact and control (dextran edema) groups, reference groups (acetylsal

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45

Protiva, Miroslav, Zdeněk Šedivý, Jiří Holubek, Emil Svátek, and Jiří Němec. "Cyclic amidines derived from benz[c,d]indole and 4,5-dihydro-3H-1-benzazepine including some related compounds: Synthesis and pharmacological screening." Collection of Czechoslovak Chemical Communications 50, no. 8 (1985): 1888–98. http://dx.doi.org/10.1135/cccc19851888.

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Reactions of naphthostyril (I) with primary and secondary amines and titanium tetrachloride afforded cyclic amidines III-IX. Hydrogenation of I on Pd-C resulted in the 6,7,8,8a-tetrahydro derivative X which gave by treatment with sodium amide and 3-dimethylaminopropyl chloride the N-(aminoalkyl) compound XI. Reduction of I and its N-methyl derivative II with sodium amalgam in aqueous sodium hydroxide gave the 2a,3,4,5-tetrahydro derivatives XII and XIII. Reaction of XIII with sodium amide and 3-dimethylaminopropyl chloride afforded the 2a-(aminoalkyl) compound XIV. 1,3,4,5-Tetrahydro-1-benzaze

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46

Patel, H. S., H. D. Desai, and H. J. Mistry. "Synthesis and Antimicrobial Activity of Some New Piperazine Derivaties Containing Aryl Sulfonyloxy Group." E-Journal of Chemistry 1, no. 2 (2004): 93–98. http://dx.doi.org/10.1155/2004/732420.

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NovelN-substituted piperazine derivatives containing sulfonyloxy aniline moiety have been prepared. The various 4-sulfonyloxy aniline (SA) derivatives (2a-h) have been prepared by the condensation reaction ofN-Acetyl Sulfanilyl chloride (ASC) and sodium phenates followed by hydrolysis. The SA derivatives are then reacted with chloro acetyl chloride to give corresponding (N-Chloroacetyl) derivatives (3a-h). These derivatives are then reacted withN-phenyl piperazine to yield the corresponding piperazine derivatives (4a-h).

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47

Kotwal, Urmila, Archana Tiwari, and Shweta Choudhary. "Synthesis, Characterization and Antimicrobial Activity of Isoxazoline Derivatives." International Journal of Pharmaceutical Sciences and Medicine 7, no. 11 (2022): 107–20. http://dx.doi.org/10.47760/ijpsm.2022.v07i11.008.

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In present study isoxazoline derivatives were synthesized and antimicrobial activity of different derivatives were checked with various microbial stain. Various intermediates was synthesized and characterized in between time to time by chromatography using TLC. An isoxazoline series of compounds were synthesized by condensation reaction of phenyl ethyl acetate with substituted benzaldehyde in presence of alcoholic sodium hydroxide to get intermediate phenethyl cinnamate (chalcones), which were further treated with hydroxylamine hydrochloride in presence of sodium hydroxide to get isoxazoline d

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48

Liu, Huan, Haizhou Zhao, Fangtao Liu, et al. "Roles played by polysaccharides with different structures in biomimetic synthesis of cuprous oxide." CrystEngComm 20, no. 40 (2018): 6243–51. http://dx.doi.org/10.1039/c8ce01010b.

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In this study, several polysaccharide derivatives, carboxymethyl cellulose sodium (CMC), carboxymethyl chitin (CMCH) and sodium alginate (HCM), were introduced as the template in the preparation of Cu<sub>2</sub>O.

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49

Ramos Cabrer, P., E. Alvarez-Parrilla, F. Meijide, J. A. Seijas, E. Rodríguez Núñez та J. Vázquez Tato. "Complexation of Sodium Cholate and Sodium Deoxycholate by β-Cyclodextrin and Derivatives†". Langmuir 15, № 17 (1999): 5489–95. http://dx.doi.org/10.1021/la9817359.

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50

Sharma, Amit, and Ashok Kumar Singh. "Synthesis, Characterization and Biological Screening of Azepine Derivative: 2-hydroxy-1,3-di(naphthalene-2-yl)-1H-benzo[b]azepine-5(4H)one." Journal of Nepal Chemical Society 42, no. 1 (2021): 75–79. http://dx.doi.org/10.3126/jncs.v42i1.35336.

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The synthesis of unsaturated heterocyclic compounds containing nitrogen atoms in the ring is very important due to its various biological application in the pharmaceutical industry. Azepine derivatives find numerous application almost every field in medicinal chemistry and some of its are commercially available as drugs. The two-component of azepine derivatives were synthesized by using the aniline and maleic anhydride as a starting material followed by condensation with sodium borohydride in presence of dry benzene, subsequently cyclization by polyphosphoric acid then, finally by an addition

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