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Relevant bibliographies by topics / Propane(chloro-2 methyl-2)

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Academic literature on the topic 'Propane(chloro-2 methyl-2)'

Author: Grafiati

Published: 4 June 2021

Last updated: 13 February 2022

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Journal articles on the topic "Propane(chloro-2 methyl-2)"

1

Büsing, D., M. Jenau, J. Reuter, A. Würflinger, and J. Li Tamarit. "Differential Thermal Analysis and Dielectric Studies on 2-Methyl-2-Nitro-Propane under High Pressure." Zeitschrift für Naturforschung A 50, no. 4-5 (May 1, 1995): 502–4. http://dx.doi.org/10.1515/zna-1995-4-524.

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Abstract Differential thermal analysis and dielectric studies under pressures up to 300 MPa and temperatures of about 200 to 350 K have been performed on 2-methyl-2-nitro-propane (TBN). TBN displays an orientationally disordered phase (ODIC), solid I, and two non-plastic phases, solids II and III. The coexistence region of the plastic phase I increases with increasing pressure, whereas the low-temperature phase II apparently vanishes at a triple point I, II, III, above 300 MPa. The static permittivity increases on freezing, characterizing the solid I as an ODIC phase. In the frame of the Kirkwood-Onsager-Fröhlich theory the g-factor is about unity, discounting specific dielectric correlations. The dielectric behaviour of TBN is similar to previously studied related compounds, such as 2-chloro-2-methyl-propane or 2-brome- 2-methyl-propane

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2

Schulz, H., H. Seyffer, B. Deobald, H. Pritzkow, and W. Siebert. "Neue Borkohlenstoffheterocyclen: Benzo-1,4-diboracyclohepten-2, 1,4-Diboracyclohepten-2 und das isomere 6.6-Dimethy 1-2-methyliden-1,3-diboracyclohexan / New Organoboran Heterocycles: Benzo-1,4-diboracycloheptene-2, 1,4-Diboracyclopentene-2 and the Isomeric 6,6-Dimethyl-2-methylidene-1,3-diboracyclohexane." Zeitschrift für Naturforschung B 49, no. 4 (April 1, 1994): 465–70. http://dx.doi.org/10.1515/znb-1994-0406.

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The reaction of 1,1-bis(trim ethylstannyl)-2-m ethylpropene-1 and 1,3-bis(dichloroboryl)- propane leads to the chloro derivate of 6,6-dimethyl-2-m ethylidene-1,3-diboracyclohexane (1a), in which the Cl atoms are substituted by the dimethylamino and the methyl group to yield lb and 1c . Similarly the benzo-1,4-diboracycloheptene-2 derivative 2a is obtained from 1,2-C6H4(SnMe3)2 and (Cl2B)2C3H6. Replacement of the substituent leads to the dimethylamino (2b) and methyl derivatives (2c). Redox reaction between hexyne-3 and (I2B)2C3H6 results in the formation of 1,4-diiodo-2,3-diethyl-1,4-diboracycloheptene-2 (3a), which is methylated to give 3c. The constitutions of 1a-c, 2a-c and 3a,c are derived from NMR and MS data and are confirmed by X-ray structure analyses for 1b and 2b.

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3

Sheikh, Asma, Zia-Ur-Rehman, Muhammad Imran, and Zaid Mahmood. "Antioxidant, biofilm inhibition and mutagenic activities of newly substituted fibrates." Tropical Journal of Pharmaceutical Research 18, no. 6 (May 27, 2021): 1227–34. http://dx.doi.org/10.4314/tjpr.v18i6.12.

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Purpose: A series of benzylidene-2-(4-bromophenoxy)-2-methyl propane hydrazides (1-10) were synthesized and assay them for their biofilm inhibition, antioxidant and mutagenic. Methods: All derivatives were prepared by condensation of various substituted benzaldehyde and acetophenones with 2-(4-bromorophenoxy)-2-methyl propane hydrazide, which was itself prepared by hydrazinolysis of ethyl-2-(4-bromophenoxy)-2-methyl propanoate and were characterized by FTIR, 1H NMR 13C NMR, mass spectrometry. They were screened for their in-vitro anti-oxidant, biofilm inhibition and mutagenicity by established methods. Results: Anti-oxidant results revealed that the electron donating group enhanced the scavenging ability of the compounds as seen in compounds 4b, 4h and 4i. In biofilm inhibition studies, all compounds were more active against Gram –ive bacterial strain when compared to gram +ive strain. The mutagenicity assay results indicate that the compound having chloro group substitution is mutagenic. Conclusion: The benzylidine compounds of 2-(4-bromophenoxy)-2-methyl hydrazide possessing electron donating substituents exhibit superior activities to the electron withdrawing group substituents.

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Lu, Yingzi, Matthias Freytag, Peter G. Jones, and Reinhard Schmutzler. "New Phosphorus-Containing Polycylic Large-Ring Systems Involving Heteroatoms." Zeitschrift für Naturforschung B 57, no. 9 (September 1, 2002): 1008–16. http://dx.doi.org/10.1515/znb-2002-0907.

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The [1+1] cyclocondensation of the bis-PCl species 1,2-bis(benzo-1-methyl-2-chloro- 1,3,2-diazaphosphorin-4-on-3-yl)ethane 1 and 1,3-bis(benzo-1-methyl-2-chloro-1,3,2-diazaphosphorin- 4-on-3-yl)propane 2 with the 1,2-benzenediol bis(trimethylsilyl) ether 3a and 2,3- naphthalenediol bis(trimethylsilyl) ether 3b gave the symmetrical phosphorus-containing largering systems 4 - 7 in moderate yield. The phosphoryl compounds 8 - 11 were obtained by the oxidation of 4 - 7 with (H2N)2C(:O) H2O2. Oxidation of 6 and 7 with elemental sulfur furnished the thiophosphoryl compounds (12 and 13). All new compounds formed in the reactions were characterized unambiguously by NMR spectroscopy, mass spectrometry, and elemental analysis. For compounds 6, 9, 10, 11 and 12, X-ray crystal structure determinations were conducted. The compounds with ten-membered rings show approximate (6, 12) or exact (10) twofold symmetry. In each of the compounds 9 and 11 the two six-membered heterocycles are appreciably different; one is approximately planar, whereas in the other, phosphorus lies outside the plane of the other five atoms

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5

Bordei Telehoiu, Alexandra T., Diana C. Nuță, Miron T. Căproiu, Florea Dumitrascu, Irina Zarafu, Petre Ioniță, Carmellina D. Bădiceanu, et al. "Design, Synthesis and In Vitro Characterization of Novel Antimicrobial Agents Based on 6-Chloro-9H-carbazol Derivatives and 1,3,4-Oxadiazole Scaffolds." Molecules 25, no. 2 (January 9, 2020): 266. http://dx.doi.org/10.3390/molecules25020266.

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In this paper, we aimed to exploit and combine in the same molecule the carbazole and the 1,3,4-oxadiazole pharmacophores, to obtain novel carprofen derivatives, by using two synthesis pathways. For the first route, the following steps have been followed: (i) (RS)-2-(6-chloro-9H-carbazol-2-yl)propanonic acid (carprofen) treatment with methanol, yielding methyl (RS)-2-(6-chloro-9H-carbazol-2-yl)propanoate; (ii) the resulted methylic ester was converted to (RS)-2-(6-chloro-9H-carbazol-2-yl)propane hydrazide (carprofen hydrazide) by treatment with hydrazine hydrate; (iii) reaction of the hydrazide derivative with acyl chlorides led to N-[(2RS)-2-(6-chloro-9H-carbazol-2-yl)propanoil]-N′-R-substituted-benzoylhydrazine formation, which; (iv) in reaction with phosphorus oxychloride gave the (RS)-1-(6-chloro-9H-carbazol-2-yl)-1-(1,3,4-oxadiazol-2-yl)ethane derivatives. In the second synthesis pathway, new 1,3,4-oxadiazole ring compounds were obtained starting from carprofen which was reacted with isoniazid, in the presence of phosphorus oxychloride to form (RS)-1-(6-chloro-9H-carbazol-2-yl)-1-[5-(4-pyridyl)-1,3,4-oxadiazol-2-yl]ethane. The synthesized compounds were characterized by IR, 1H-NMR and 13C-NMR, screened for their drug-like properties and evaluated for in vitro cytotoxicity and antimicrobial activity. The obtained compounds exhibited a good antimicrobial activity, some of the compounds being particularly active on E. coli, while others on C. albicans. The most significant result is represented by their exceptional anti-biofilm activity, particularly against the P. aeruginosa biofilm. The cytotoxicity assay revealed that at concentrations lower than 100 μg/mL, the tested compounds do not induce cytotoxicity and do not alter the mammalian cell cycle. The new synthesized compounds show good drug-like properties. The ADME-Tox profiles indicate a good oral absorption and average permeability through the blood brain barrier. However, further research is needed to reduce the predicted mutagenic potential and the hepatotoxicity.

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6

Tuzimski, Tomasz, Szymon Szubartowski, Renata Gadzała-Kopciuch, Andrzej Miturski, Monika Wójtowicz-Marzec, Wojciech Kwaśniewski, and Bogusław Buszewski. "Comparison of DAD and FLD Detection for Identification of Selected Bisphenols in Human Breast Milk Samples and Their Quantitative Analysis by LC-MS/MS." Journal of AOAC INTERNATIONAL 103, no. 4 (February 28, 2020): 1029–42. http://dx.doi.org/10.1093/jaoacint/qsaa027.

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Abstract Background Determination of bisphenols released from packaging material is undoubtedly a difficult and tricky task, requiring the chemical analyst to develop an individual approach to obtain reliable analytical information. Objective QuECHERS (Quick, Easy, Cheap, Effective, Rugged, and Safe)/dispersive solid-phase extraction (d-SPE) technique and high performance liquid chromatography (HPLC) coupled with modern detection techniques such as diode-array detector (DAD), ﬂuorescence detector (FLD) or tandem mass spectrometry (MS/MS) for the determination of bisphenols such as bisphenol A (BPA), bisphenol S (BPS), bisphenol F (BPF), bisphenol B (BPB), 2-[[4-[2-[4-(Oxiran-2-ylmethoxy)phenyl]propan-2yl]phenoxy] methyl]oxirane (BADGE), 3-[4-[2-[4-(Oxiran-2-ylmethoxy)phenyl]propan-2-yl]phenoxy]propane-1,2-diol (BADGE*H2O), 3-[4-[2-[4-(2,3-Dihydroxypropoxy)phenyl]propan-2-yl]phenoxy]propane-1,2-diol (BADGE*2H2O), 1-Chloro-3-[4-[2-[4-(3-chloro-2-hydroxypropoxy)phenyl] propan-2-yl]phenoxy]propan-2-ol (BADGE*2HCl) in human breast milk samples have been performed. Methods For the analysis of total analytes, prior to the extraction with acetonitrile, a deconjugation step was implemented in a tube by adding 1 mL of the enzymatic solution with the β-Glucuronidase to 5 mL of sample. The mix was homogenized and incubated for 17 h at 37°C. Ten milliliters of acetonitrile, and a QuEChERS salt packet with 4 g anhydrous MgSO4 and 1 g NaCl were added. During the d-SPE step the extract was transferred into tube with 30 mg Z-Sep and 50 mg PSA (and also 150 mg MgSO4 for LC-MS/MS analysis). MeOH–water (20:80, v/v) were added to the dry residue and the extract was reconstituted in 150 µL (25-fold analytes pre-concentration is achieved). Next bisphenols were identified by HPLC-DAD-FLD and quantified by LC-MS/MS equipment. Conclusions During the bisphenols HPLC-DAD-FLD analysis, from 6 min a reinforcement of 15 was used, which allowed analytes to be identified at 750 pg/mL. Application of LC-MS/MS allowed quantification of bisphenols in the range from 2.12 to 116.22 ng/mL in a total 27 human breast milk samples. Highlights First QuEChERS/d-SPE coupled with HPLC-DAD-FLD or LC-MS/MS method for the quantification of bisphenols and its analogues in breast milk Faster and cheaper alternative to traditional extraction methods The method was applied for the first biomonitoring of bisphenols and its analogues in breast milk.

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7

Kimura, Takayoshi, Takanori Matsushita, Kana Ueda, Farida Aktar, Tetsuo Matsuda, Tadashi Kamiyama, and Masao Fujisawa. "Enthalpic changes on mixing two couples of S- and R-enantiomers of heptane-2-ol, octane-2-ol, nonane-2-ol, 3-chloro-propane-1,2-diol, 2-methyl-1,4-butanediol at 298.15K." Thermochimica Acta 414, no. 2 (May 2004): 209–14. http://dx.doi.org/10.1016/j.tca.2003.12.024.

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8

Jouyban, Abolghasem, Javad Shokri, Mohammad Barzegar-Jalali, Davoud Hassanzadeh, William E. Acree, Taravat Ghafourian, and Ali Nokhodchi. "Solubility of 7-Chloro-2-methylamino-5-phenyl-3H-1,4-benzodiazepine-4-oxide, 7-Chloro-1,3-dihydro-1-methyl-5-phenyl-2H-1,4-benzodiazepin-2-one, and 7-Chloro-5-(2-chlorophenyl)-3-hydroxy-1,3-dihydro-1,4-benzodiazepin-2-one in (Propane-1,2-diol + Water) at a Temperature of 303.2 K." Journal of Chemical & Engineering Data 55, no. 1 (January 14, 2010): 539–42. http://dx.doi.org/10.1021/je900451d.

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9

Tang, Mingjin, Jianbo Li, Zhengrong Ye, Zimin Kou, and Luoping Fu. "A Novel Eco-Friendly Scale and Corrosion Inhibitor Modified by β-Cyclodextrin." Australian Journal of Chemistry 70, no. 8 (2017): 933. http://dx.doi.org/10.1071/ch16720.

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A polymer, β-MEA, was synthesised from β-cyclodextrin (β-CD), 3-chloro-2-methylpropene (MAC), epoxysuccinic acid (ESA), and 2-acrylamido-2-methyl propane sulfonic acid (AMPS) with a (NH4)2S2O8-NaHSO3 redox initiator system by aqueous solution radical polymerisation. β-MEA was characterised by means of IR spectroscopy, time-of-flight mass spectrometry, gel permeation chromatography, and thermogravimetric analysis. Its structure, molecular weight, thermal stability, scale and corrosion inhibition performance and mechanism were investigated. The results verified that β-MEA achieves a better scale inhibition efficiency for BaSO4 compared with poly(aspartic acid) (PASP) (100 % cf. 94.9 % at a concentration of 20 mg L−1) and a better corrosion inhibition efficiency of N80 carbon steel in saline water compared with PESA (91.2 % cf. 79.7 % at a concentration of 1 g L−1). The BaSO4 was characterised by scanning electron microscopy (SEM) and X-ray diffraction to investigate the crystal morphology of the scale. Primary research on the mechanism for corrosion inhibition was carried by SEM-chemical analysis.

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Rossignoli, M., GA Lawrance, M. Maeder, DCR Hockless, BW Skelton, and AH White. "The Influence of Alkyl Substituents on Carbon Acid Formaldehyde Condensation Reactions of Bis(alkane-1,2-diamine)copper(II) Ions." Australian Journal of Chemistry 49, no. 12 (1996): 1307. http://dx.doi.org/10.1071/ch9961307.

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The reaction of the bis (1,2-diamine)copper(II) complexes of ethane-1,2-diamine (en), propane-1,2-diamine ( pn ) and 2-methylpropane-1,2-diamine ( dmen ) with formaldehyde and nitroethane in methanol under basic conditions yields macrocyclic and acyclic condensation products with two or one new -NH-CH2-C(Me)(NO2)-CH2-NH- links introduced respectively between pairs of cis-disposed primary amines, and where the ratio of products is, surprisingly, significantly altered by C-methyl substitution on the parent ethane-1,2-diamine chelate . Under identical reaction conditions, the ratio of acyclic to macrocyclic product varied from 2:3 (en) to 10:1 ( pn ) to 50:1 ( dmen ) as first one methyl and then gem- dimethyl groups are attached to each parent chelate ring. That the reaction is influenced by substituent steric effects is supported by the structural characterization of the zinc-acid reduced and recomplexed acyclic species, which indicates that first ring formation occurs at amine pairs distant from the C-methyl substituents. The μ-chloro-bis (6-methyl-4,8-diazaundecane-2,6,10-triamine) dicopper (II) perchlorate crystallized in the space group C2/ c, a 23.003(6), b 12.641 (3), c 19.120(6) Ǻ, β 127.88(2)°, whereas the (2,6,10-trimethyl-4,8-diazaundecane-2,6,10-triamine)copper(II) perchlorate crystallized in the space group Cc2a, a 43.769(3), b 14.509(3), c 17.750(8) Ǻ. The copper ion is found in a distorted octahedral environment in the former with two complex units weakly bridged by a chloride anion, and in a square-based pyramidal environment in the latter.

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Dissertations / Theses on the topic "Propane(chloro-2 methyl-2)"

1

Le, Gars Pierre. "Synthese directe de chlorures d'acide par carbonylation de derives halogenes aliphatiques." Toulouse 3, 1987. http://www.theses.fr/1987TOU30199.

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Book chapters on the topic "Propane(chloro-2 methyl-2)"

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Winkelmann, Jochen. "Self-diffusion coefficient of 2-chloro-2-methyl-propane." In Diffusion in Gases, Liquids and Electrolytes, 203. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-540-73735-3_111.

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Winkelmann, Jochen. "Diffusion coefficient of 2-chloro-2-methyl-propane in propan-2-one at infinite dilution." In Diffusion in Gases, Liquids and Electrolytes, 2135. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_1550.

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Winkelmann, Jochen. "Diffusion coefficient of 2-chloro-2-methyl-propane in methanol at infinite dilution." In Diffusion in Gases, Liquids and Electrolytes, 2133. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_1548.

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Winkelmann, Jochen. "Diffusion coefficient of 2-chloro-2-methyl-propane in ethanol at infinite dilution." In Diffusion in Gases, Liquids and Electrolytes, 2134. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_1549.

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Winkelmann, Jochen. "Diffusion coefficient of 2-chloro-2-methyl-propane in decane at infinite dilution." In Diffusion in Gases, Liquids and Electrolytes, 2136. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_1551.

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Demaison, J. "455 C4H7Cl 1-Chloro-2-methyl-1-propene." In Asymmetric Top Molecules. Part 2, 356. Berlin, Heidelberg: Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-10400-8_203.

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Winkelmann, Jochen. "Diffusion coefficient of 2-chloro-5-methyl-phenol in propan-2-one at infinite dilution." In Diffusion in Gases, Liquids and Electrolytes, 2549. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_1946.

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Winkelmann, Jochen. "Diffusion coefficient of 4-chloro-2-methyl-aniline in propan-2-one at infinite dilution." In Diffusion in Gases, Liquids and Electrolytes, 2579. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_1973.

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Winkelmann, Jochen. "Diffusion coefficient of 4-chloro-3-methyl-phenol in propan-2-one at infinite dilution." In Diffusion in Gases, Liquids and Electrolytes, 2550. Berlin, Heidelberg: Springer Berlin Heidelberg, 2018. http://dx.doi.org/10.1007/978-3-662-54089-3_1947.

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Conference papers on the topic "Propane(chloro-2 methyl-2)"

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Tafat-Igoudjilene, O., L. Mostefai, and A. Ait Kaci. "Experimental and Predicted Excess Molar Volumes of Ternary Mixtures (1-chlorobutane or 2-methyl, 2-chloro propane) + n-heptane + 2-pentanone at T=298,15 K." In XXXV JEEP – 35th Conference on Phase Equilibria. Les Ulis, France: EDP Sciences, 2009. http://dx.doi.org/10.1051/jeep/200900024.

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