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Journal articles on the topic '1-amino-2- naphthole'

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Published: 3 June 2025

Last updated: 31 July 2025

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1

Maringgele, Walter, and Anton Meller. "Reaktionen der Natrium-Komplexe aromatischer Ether mit Dichlor(diorganylamino)boranen/Reactions of Sodium Complexes of Aromatic Ethers with Dichloro(diorganylamino)boranes." Zeitschrift für Naturforschung B 44, no. 1 (1989): 67–73. http://dx.doi.org/10.1515/znb-1989-0116.

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Abstract The reaction of anisole with Na/K-alloy and subsequent reaction with dichloro(diisopropyl-amino)borane yields diisopropylamino(diphenoxy)borane (1). In reacting the sodium complex of 1-or 2-m ethoxynaphthalene, respectively, with dichloro(diorganylamino)boranes the ether bond is cleaved. One obtains the methoxy-2-naphthoxy-diorganylam inoboranes (2a -d) besides the di-2-naphthoxy-diorganylam inoboranes (3a-e), the 2-naphthoxy-bis(diorganylamino)boranes (4a-b) and the solvated sodium-2-naphtholate (6). By-products are 1,2-bis[(diisopropylamino)-1- or 2-naphthoxyboryl]ethyne derivatives

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2

El-Naggar, Mohamed, Abdel-Nasser El-Shorbagi, Dina H. Elnaggar, Abd El-Galil E. Amr, Mohamed A. Al-Omar, and Elsayed A. Elsayed. "Synthesis, Characterization, and Cytotoxic Evaluation of Some Newly Substituted Diazene Candidates." Journal of Chemistry 2018 (November 1, 2018): 1–9. http://dx.doi.org/10.1155/2018/3626824.

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A series of azocompounds containing methyl salicylate 4a–k and 1-naphthyl moiety 6–8 was synthesized and tested as anticancer agents. Nitrosation of methyl 5-amino-2-hydroxybenzoate or 1-aminonaphthalene by using NaNO2 in the presence of HCl afforded diazonium salt derivatives 2 and 5, which were treated with substituted imino or substituted amino derivatives, to give the corresponding substituted amino-pent-2-en-3-yl-diazenylbenzoate 4a–k or 2-substituted-1-(naphthalen-1-yl)diazene derivatives 6a–h, 7a,b, and 8a,b. All the synthesized compounds were elucidated by elemental analysis and spectr

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3

Ibrahim, Mohamed N., Salaheddin A. I. Sharif, Ahmad N. EL-Tajory, and Asma A. Elamari. "Synthesis and Antibacterial Activities of Some Schiff Bases." E-Journal of Chemistry 8, no. 1 (2011): 212–16. http://dx.doi.org/10.1155/2011/258340.

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Schiff basesp-hydroxybenzylidene-2-carboxyaniline,p-nitrobenz-ylidene-2-carboxyaniline,p-(N, N-dimethyl)aminobenzylidene-2-carboxyaniline,N-(4-hydroxybezylidene)-benzene-1,2-diamine,N--(4-nitrobezylidene)benzene-1,2-diamine,N-(4-(N, N-dimethylaminobezylidene)benzene-1,2-diamine,N-(4-(N,N-dimethylamino)benzylidene)naphthalen-1-amine,N-(4-nitrobenzylidene)naphthalen-1-amine,N--(4-chlorobenzylidene)naphthalen-1-amine,sodium-4-(4-(N,N-dimethyl amino)benzylideneamino)naphthalene-1-sulfonate,sodium -4-(4-nitrobenzylidene-amino)naphthalene-1-sulfonate and sodium-4-(4-chlorobenzylideneamino) naphthale

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4

Dilip, Kumar, Vaish Anurag, and Nayan Ram. "Equilibrium studies on binary and ternary complexes of palladium and cadmium with some nitrogen and oxygen donor ligands." Journal of Indian Chemical Society Vol. 82, Jun 2005 (2005): 490–93. https://doi.org/10.5281/zenodo.5830426.

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Department of Chemistry, Hindu College, Moradabad-244 001, India <em>E-mail</em>: ramnayan_2003@yahoo.co.in          Fax: 91-591-2440070 <em>Manuscript received 26 August 2003, revised 9 November 2004, accepted 2 March 2005</em> The metal-ligand equilibrium reactions involving palladium(II), cadmium(ll) and 1,2-dihydroxybenzene, 1-amino-2-naphthol4-sulfonic acid, 8-amino-1-naphthol-3,6-disulfonic acid, <em>o</em>-aminophenol and 4,5-dihydroxybcnzene-1 ,3-disulfonic acid have been studied in solution at 25º and at ionic strength of 0.10 <em>M</em> (KNO<sub>3</sub>)

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5

Journal, Baghdad Science. "Preparation of some azo compounds by diazotization and coupling of 2- amino -5 – thiol -1,3,4- thiadizaole." Baghdad Science Journal 4, no. 2 (2015): 271–75. http://dx.doi.org/10.21123/bsj.4.2.271-275.

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2- amino -5- thiol-1,3,4- thiadiazole (S1) was prepared by cyclic locking of thiosemicarbazide in the presence of anhydrous sodium carbonate and CS2. diazotization of (S1) compound gave diazonium salt (S2) that reacts with different activated aromatic compounds to get the following azo compounds ,2 [(4- aminophenyl) diazenyl ] 1,3,4- thiazdiazole-5- thiol (S3) ,2-[4-amino- 1-naphthyl diazenyl] -1,3,4 – thiazdiazole-5-thiol (S4) , 3-amino-4-[(5- mercapto -1,3,4- thiadiazole -2-yl) diazenyl ] phenol(S5) ,1-[(5-mercapto-1,3,4-thiadiazole-2-yl) diazenyl] -2-naphthol (S6) , 5-{[4-(dimethylamino) ph

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6

Saleh, Mohammad M., and Suhair S. Dauood. "Preparation of some azo compounds by diazotization and coupling of 2- amino -5 – thiol -1,3,4- thiadizaole." Baghdad Science Journal 4, no. 2 (2021): 271–75. http://dx.doi.org/10.21123/bsj.2007.4.2.271-275.

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2- amino -5- thiol-1,3,4- thiadiazole (S1) was prepared by cyclic locking of thiosemicarbazide in the presence of anhydrous sodium carbonate and CS2. diazotization of (S1) compound gave diazonium salt (S2) that reacts with different activated aromatic compounds to get the following azo compounds ,2 [(4- aminophenyl) diazenyl ] 1,3,4- thiazdiazole-5- thiol (S3) ,2-[4-amino- 1-naphthyl diazenyl] -1,3,4 – thiazdiazole-5-thiol (S4) , 3-amino-4-[(5- mercapto -1,3,4- thiadiazole -2-yl) diazenyl ] phenol(S5) ,1-[(5-mercapto-1,3,4-thiadiazole-2-yl) diazenyl] -2-naphthol (S6) , 5-{[4-(dimethylamino) ph

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7

Xu, Ji-Jun, Jun Li, Min Pi, and Chuan-Ming Jin. "1-[(Phenyliminio)amino]-2-naphtholate." Acta Crystallographica Section E Structure Reports Online 66, no. 7 (2010): o1752. http://dx.doi.org/10.1107/s1600536810023329.

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8

Swetha, Vandana P., Aditya Basu, and Prashant S. Phale. "Purification and Characterization of 1-Naphthol-2-Hydroxylase from Carbaryl-Degrading Pseudomonas Strain C4." Journal of Bacteriology 189, no. 7 (2007): 2660–66. http://dx.doi.org/10.1128/jb.01418-06.

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ABSTRACT Pseudomonas sp. strain C4 metabolizes carbaryl (1-naphthyl-N-methylcarbamate) as the sole source of carbon and energy via 1-naphthol, 1,2-dihydroxynaphthalene, and gentisate. 1-Naphthol-2-hydroxylase (1-NH) was purified 9.1-fold to homogeneity from Pseudomonas sp. strain C4. Gel filtration and sodium dodecyl sulfate-polyacrylamide gel electrophoresis showed that the enzyme is a homodimer with a native molecular mass of 130 kDa and a subunit molecular mass of 66 kDa. The enzyme was yellow, with absorption maxima at 274, 375, and 445 nm, indicating a flavoprotein. High-performance liqui

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9

Capozzi, Maria Annunziata M., and Cosimo Cardellicchio. "(S,S)-1-(Phenyl((1′-4-nitrophenyl-ethyl)amino)methyl)-2-naphthol." Molbank 2022, no. 4 (2022): M1522. http://dx.doi.org/10.3390/m1522.

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The Betti reaction of 2-naphthol, benzaldehyde and (S)-1-(4-nitrophenyl)ethylamine without any solvent gave the corresponding aminobenzylnaphthol, that is the (S,S)-1-(phenyl((1′-4-nitrophenyl-ethyl)amino)methyl)-2-naphthol, in good yield (56%). The absolute configuration of the title compound was attributed by NMR analysis, a procedure that is reliable if compared with the data obtained by X-ray diffraction experiments.

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10

El-Gaby, Mohamed S. A., Mohamed I. Hassan, Modather F. Hussein, Ahmed M. Ali, Mahmoud M. Elaasser, and Faraghally A. Faraghally. "Synthesis, characterization and in vitro biological screening of 4-hydroxy naphthalen-1-yl, naphtho[1,2-b]furan, benzo[h]chromene and 5,6-dihydropyridazine derivatives containing sulfonamide moiety." Mediterranean Journal of Chemistry 7, no. 5 (2018): 346–58. http://dx.doi.org/10.13171/mjc751912061355msaeg.

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In this study, a series of 4-((4-hydroxynaphthalen-1-yl)diazenyl)benzenesulfonamides have been prepared by subsequent diazotization of sulfonamide derivatives and coupling with 1-naphthol in alkaline medium. Cyclization of 4-((4-hydroxynaphthalen-1-yl)diazenyl)benzenesulfonamides with cinnamic acid in the presence of a basic catalyst afforded the novel naphtho[1,2-b]furans. Also, 4-((4-hydroxynaphthalen-1-yl)diazenyl)benzenesulfonamides can be cyclized with α‐cyanocinnamonitriles to afford 2-amino-3-cyano-4-phenyl-4H-benzo[h]chromenes. 4-(4-amino-3,5- dicyano-6-iminopyridazin-1(6H)-yl)benzenes

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11

Journal, Baghdad Science. "Synthesis of some Schiff's bases derivatives from aminoazo compounds." Baghdad Science Journal 4, no. 3 (2007): 416–19. http://dx.doi.org/10.21123/bsj.4.3.416-419.

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Reaction of,2- [( 4- amio phenyl ) diazenyl] 1,3,4- thiadiazole -5- thiol (S1) with p- chlorobenzeldehyde,3,4 – dimethoxy benzaldehyde and pyrrol-2- carbonxaldehyde gave -5- [{4-(4-chlorobenzylidene amino) phenyl} diezenyl]-1,3,4- thiadiazole-2- thiol (S2),5-[{ 4-[(3,4- dimethoxybenzyldene )amino phenyl ] diazenyl)-1,3,4- thiadiazole-2-thiol,(S3) and -5- [4-(1,H – pyrrol -2- yl- methylene)amino phenyl] diazenyl)-1,3,4- thiadiazole-2- thiol (S4) respectively as schiff's bases compounds. On the same route-2-[(4-amino-1- naphthyl ) diazenyl] -1,3,4- thiadiazole -5- thiol (S5) reacts with –p- chlo

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12

Orona, Gabriella, Vanessa Molinar, Frank R. Fronczek, and Ralph Isovitsch. "2-[(Naphthalen-1-ylmethylidene)amino]-5-methylphenol." Acta Crystallographica Section E Structure Reports Online 67, no. 9 (2011): o2505—o2506. http://dx.doi.org/10.1107/s1600536811034556.

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13

I. C, Onunkwo, Ejikeme C. M, and Osuji G. A. "Synthesis and Characterization of 1-Amino-2-Naphthol Hydrochloride and Dyeing Potentials of 1-(1-Phenylazo)-2-Naphthol." International Journal of Chemistry and Materials Research 8, no. 1 (2020): 49–53. http://dx.doi.org/10.18488/journal.64.2020.81.49.53.

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14

Swarnkar, Pawan Kumar, P. Kriplani, G. N. Gupta, and K. G. Ojha. "Synthesis and Antibacterial Activity of Some New Phenothiazine Derivatives." E-Journal of Chemistry 4, no. 1 (2007): 14–20. http://dx.doi.org/10.1155/2007/402673.

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A series of some new phenothiazine derivatives were synthesized with the objective for evaluation as antimicrobials. The title compounds were prepared by a five step synthesis scheme. 2-Amino-6-substituted benzothiazoles (1) on diazotization afford 6-substituted benzothiazolyl-2-diazonium chlorides (2). Reaction of 2 with cold solution ofβ-naphthol in dilute NaOH furnishesα-(2-diazo-6-substituted benzothiazolyl)-β-sodionaphthoxides (3) which on acidification with concentrated HCl givesα-(2-diazo-6-substituted benzothiazolyl)-β-naphthols (4). Reaction of 4 with p-substituted anilines givesα-(2-

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15

El-Maghraby, Awatef Mohamed. "Green Chemistry: New Synthesis of Substituted Chromenes and Benzochromenes via Three-Component Reaction Utilizing Rochelle Salt as Novel Green Catalyst." Organic Chemistry International 2014 (January 30, 2014): 1–6. http://dx.doi.org/10.1155/2014/715091.

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Substituted 2-amino-4-aryl-7-hydroxy-4H-chromene-3-carbonitriles (6), 2-amino-4-aryl-4H-benzo[h]chromene-3-carbonitriles (7), and 3-amino-1-aryl-1H-benzo[f]chromenes-2-carbonitriles (8) were prepared, in good yields, via one-pot three-component reactions of aromatic aldehydes (1), malononitrile (2), and resorcinol (3) or α-naphthol (4) or β-naphthol (5) in refluxing ethanol or water in the presence of Rochelle salt as novel green heterogeneous and reusable catalyst.

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16

Lokshin, Vladimir, André Samat, and Robert Guglielmetti. "Synthesis of photochromic spirooxazines from 1-amino-2-naphthols." Tetrahedron 53, no. 28 (1997): 9669–78. http://dx.doi.org/10.1016/s0040-4020(97)00640-6.

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17

Möhrle, Hans, and Hubertus Folttmann. "Modellreaktionen zur Plumbagin-Synthese, 2. Mitteilung 5-Amino-1-naphthol als Startkomponente / Model Reactions for Plumbagin Synthesis, 2nd Communication 5-Amino-1-naphthol as Starting Compound." Zeitschrift für Naturforschung B 42, no. 12 (1987): 1578–84. http://dx.doi.org/10.1515/znb-1987-1215.

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AbstractThe aminomethylation of 5-amino-1-naphthol (1) and 5-acetamido-1-naphthol (9) is examined. While the hydrogenolysis of the phenol Mannich bases derived from 1 cannot be accomplished, the derivatives of 9 react easily. The oxidation of the 2-methylphenol compounds 5 and 18 to the corresponding quinones may performed with Fremy's salt. The following transforming of the amino to the hydroxy group by nitrosylsulfuric acid succeeds with small yield only.

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18

Huang, Xian-Tong, Kan Lin, Tao Ji, Guo Tang, and Yu-Fen Zhao. "(±)-1-{[(4-Methoxybenzylidene)amino](4-methoxyphenyl)methyl}-2-naphthol." Acta Crystallographica Section E Structure Reports Online 63, no. 6 (2007): o3031. http://dx.doi.org/10.1107/s1600536807025214.

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19

Fall, Serigne Abdou Khadir, Sara Hajib, Oumaima Karai, et al. "Naphthalen-2-yl 1-(benzamido(diethoxyphosphoryl)methyl)-1H-1,2,3-triazole-4-carboxylate." Molbank 2021, no. 4 (2021): M1285. http://dx.doi.org/10.3390/m1285.

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We have previously published new biheterocyclic phospohonic α-amino esters of the 1,2,3-triazole-benzimidazole and 1,2,3-triazole-carbazole type. The aim of the present paper was to describe a new phosponic aminoester bearing a triazole ring substituted in position 5 by an ester group. Thus, according to the same catalytic process used previously, the compound naphthalen-2-yl 1-(benzamido(diethoxyphosphoryl)methyl)-1H-1,2,3-triazole-4-carboxylate was synthesized with an excellent yield and high regioselectivity via the copper (I)-catalyzed alkyne–azide cycloaddition reaction (CuAAC), using die

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20

Farag, Abeer Mohamed, Siang Guan Teoh, Hasnah Osman, Suchada Chantrapromma, and Hoong-Kun Fun. "(E)-1-[(2-Amino-5-nitrophenyl)iminiomethyl]naphthalen-2-olate." Acta Crystallographica Section E Structure Reports Online 66, no. 5 (2010): o1227—o1228. http://dx.doi.org/10.1107/s1600536810014923.

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21

Guo, Cheng, Dong-Mei Zhang, Qing-Gang Tang, and Jun-Jie Zha. "Methyl 3-amino-1-(3-nitrophenyl)-1H-naphtho[2,1-b]pyran-2-carboxylate." Acta Crystallographica Section E Structure Reports Online 62, no. 7 (2006): o2995—o2996. http://dx.doi.org/10.1107/s1600536806023427.

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The title compound, C21H16N2O5, was synthesized by the reaction of 2-naphthol with methyl cyanoacetate and 3-nitrobenzaldehyde in ethanol under microwave irradiation. The pyran ring adopts a boat conformation.

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22

Wei, Hong-Xia, Jing Zhu, Ming Li, Jian-qiang Wang, and Cheng Guo. "2-Amino-4-(2-chlorophenyl)-6-(naphthalen-1-yl)pyridine-3-carbonitrile." Acta Crystallographica Section E Structure Reports Online 68, no. 6 (2012): o1839. http://dx.doi.org/10.1107/s1600536812020909.

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In the title compound, C22H14ClN3, prepared by a one-pot reaction under microwave irradiation, the dihedral angles between the central pyridine ring and the pendant naphthyl and chlorobenzene ring systems are 49.2 (2) and 58.2 (3)°, respectively. In the crystal, inversion dimers linked by pairs of N—H...N hydrogen bonds generate R 2 2(8) loops. The pyridine N atom is the acceptor.

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23

Yemashova, N., and S. Kalyuzhnyi. "Microbial conversion of selected azo dyes and their breakdown products." Water Science and Technology 53, no. 11 (2006): 163–71. http://dx.doi.org/10.2166/wst.2006.349.

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Four selected azo dyes (acid orange 6, acid orange 7, methyl orange and methyl red) were completely decolourised in the presence of anaerobic granular sludge, while only methyl red was degraded in aerobic conditions using a conventional activated sludge. Additional experiments with culture broth devoid of cells showed that anaerobic decolourisation of azo dyes was performed by extracellular reducing agents produced by anaerobic bacteria. This was further confirmed by abiotic experiments with sulphide and NADH. The presence of redox mediators such as riboflavin led to dramatic acceleration of t

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24

Jyoti, Tripathi*1 Deepika Pareek2 Dinesh Vaishnav3 and Aresh Vikram Singh4. "PREPARATION AND CHARACTERIZATION OF GUARGUM 5-AMINO-1-NAPHTHOL-3-SULPHONIC ACID (GANSA) RESIN AND ITS USE FOR SEPARATION OF HEAVY METAL IONS FROM INDUSTRIAL WASTEWATER." International Journal OF Engineering Sciences &Management Research 5, no. 4 (2018): 34–41. https://doi.org/10.5281/zenodo.1218961.

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A new guargum based resin containing 5-amino-1-naphthol-3-sulphonic acid has been synthesized and adsorption behavior for heavy metal ions has been investigated by batch and column experiment. The guargum 5- amino-1-naphthol-3-sulphonic acid resin can selectively separate heavy metal ions from industrial waste water. The GANSA resin was characterization the basis of ion exchange capacity IR spectra and thermogravimetric analysis.The GANSA resin has been used for removal of heavy metal ions Cd<sup>+2</sup>,Pb<sup>+2</sup>,Cu<sup>+2</sup>,Zn<sup>+2</sup>in aqueous solution and effluents of Princ

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25

LOKSHIN, V., A. SAMAT, and R. GUGLIELMETTI. "ChemInform Abstract: Synthesis of Photochromic Spirooxazines from 1-Amino-2-naphthols." ChemInform 28, no. 50 (2010): no. http://dx.doi.org/10.1002/chin.199750161.

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26

Jain, Vanshika, Tamilselvi Gurusamy, Prakasam Gayathri, and Kothandaraman Ramanujam. "Oxygen sensitive 1-amino-2-naphthol immobilized functionalized-carbon nanotube electrode." New Journal of Chemistry 44, no. 21 (2020): 8849–58. http://dx.doi.org/10.1039/d0nj00438c.

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Immobilization of 1-amino-2napthol (AN) is enhanced complexing with Cu<sup>2+</sup> on multiwalled carbon nanotubes (f-MWCNT) surface. Oxygen is reduced at the ligand (AN) site into water, therefore AN–Cu<sup>2+</sup> immobilized on MWCNT exhibits oxygen sensing.

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27

Abdel-Rahman, Adel A. H., Amira K. F. Shaban, Ibrahim F. Nassar, et al. "Discovery of New Pyrazolopyridine, Furopyridine, and Pyridine Derivatives as CDK2 Inhibitors: Design, Synthesis, Docking Studies, and Anti-Proliferative Activity." Molecules 26, no. 13 (2021): 3923. http://dx.doi.org/10.3390/molecules26133923.

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New pyridine, pyrazoloyridine, and furopyridine derivatives substituted with naphthyl and thienyl moieties were designed and synthesized starting from 6-(naphthalen-2-yl)-2-oxo-4-(thiophen-2-yl)-1,2-dihydropyridine-3-carbonitrile (1). The chloro, methoxy, cholroacetoxy, imidazolyl, azide, and arylamino derivatives were prepared to obtain the pyridine-‑C2 functionalized derivatives. The derived pyrazolpyridine-N-glycosides were synthesized via heterocyclization of the C2-thioxopyridine derivative followed by glycosylation using glucose and galactose. The furopyridine derivative 14 and the tricy

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Pal Chowdhury, Piyali, Soumik Basu, Arindam Dutta, and Tapan K. Dutta. "Functional Characterization of a Novel Member of the Amidohydrolase 2 Protein Family, 2-Hydroxy-1-Naphthoic Acid Nonoxidative Decarboxylase from Burkholderia sp. Strain BC1." Journal of Bacteriology 198, no. 12 (2016): 1755–63. http://dx.doi.org/10.1128/jb.00250-16.

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ABSTRACTThe gene encoding a nonoxidative decarboxylase capable of catalyzing the transformation of 2-hydroxy-1-naphthoic acid (2H1NA) to 2-naphthol was identified, recombinantly expressed, and purified to homogeneity. The putative gene sequence of the decarboxylase (hndA) encodes a 316-amino-acid protein (HndA) with a predicted molecular mass of 34 kDa. HndA exhibited high identity with uncharacterized amidohydrolase 2 proteins of variousBurkholderiaspecies, whereas it showed a modest 27% identity with γ-resorcylate decarboxylase, a well-characterized nonoxidative decarboxylase belonging to th

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29

Ye, Yuan-Feng, Huai-Qing Wang, and Zhi-Qiang Feng. "2-Amino-4-(2,4-dichlorophenyl)-6-(naphthalen-1-yl)nicotinonitrile." Acta Crystallographica Section E Structure Reports Online 67, no. 1 (2010): o71. http://dx.doi.org/10.1107/s1600536810050609.

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30

Mao, Wei, Cheng Guo, Wei Wang, Chang-jun Luan, and Ren-jun Du. "2-Amino-6-(naphthalen-1-yl)-4-phenylpyridine-3-carbonitrile." Acta Crystallographica Section E Structure Reports Online 67, no. 4 (2011): o853. http://dx.doi.org/10.1107/s1600536811002765.

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31

Akkurt, Mehmet, Peter N. Horton, Shaaban K. Mohamed, Antar A. Abdelhamid, and Mahmoud A. A. El Remaily. "1-{(Z)-[(2,3-Dihydroxypropyl)amino]methylidene}naphthalen-2(1H)-one." Acta Crystallographica Section E Structure Reports Online 69, no. 1 (2012): o136—o137. http://dx.doi.org/10.1107/s1600536812051070.

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32

Chikwe, T. N., O. J. Abayeh, and C. Nwaka. "Synthesis and spectroscopic analyses of metronidazole-naphthol derivative." Dutse Journal of Pure and Applied Sciences 10, no. 4a (2025): 160–71. https://doi.org/10.4314/dujopas.v10i4a.16.

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The synthesis of metronidazole-naphthol derivative (Sample 5) was achieved by the reduction of metronidazole (Sample 1) with zinc in aqueous solution of hydrochloric acid and diazotization of the reduced product (Sample 2) with aqueous solutions of NaNO2 and HCl at a temperature range of 0 – 5oC. Diazo-coupling of 2- Naphthol unto the diazonium salt of metronidazole gave rise to metronidazole-naphthol derivative. The synthesis produced a yield of 28.2 and 36.4% for Sample 2 (1- (2-Hydroxyethyl)-2-methyl-5-aminoimidazole) and Sample 5 respectively. The purity of samples 1, 2 and 5 were verified

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33

Hosseini-Sarvari, Mona, and Sara Shafiei-Haghighi. "Multi-component synthesis of 2-amino-4H-chromenes catalyzed by nano ZnO in water." Collection of Czechoslovak Chemical Communications 76, no. 11 (2011): 1285–98. http://dx.doi.org/10.1135/cccc2011050.

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Naphthalenediols, 1- and 2-naphthols, and phenols in the presence of nano ZnO as catalyst and water as green solvent react with methylenemalononitrile, generated in situ from aldehyde and malononitrile, to yield 2-amino-4H-chromenes.

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34

Ukhin, L. Yu, L. G. Kuzmina, V. A. Podshibyakin, et al. "Synthesis of New Oxonine Series Macrolactones with Maphthopyrazine Fragments." Журнал общей химии 94, no. 1 (2024): 92–97. http://dx.doi.org/10.31857/s0044460x24010071.

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35

Jędrzkiewicz, D., J. Ejfler, N. Gulia, Ł. John, and S. Szafert. "Designing ancillary ligands for heteroleptic/homoleptic zinc complex formation: synthesis, structures and application in ROP of lactides." Dalton Transactions 44, no. 30 (2015): 13700–13715. http://dx.doi.org/10.1039/c5dt01553g.

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36

Dilip, Kumar, Vaish Anurag, and Nayan Ram. "Quantitative equilibrium studies on mixed ligand complexes of nickel-, copper- and zinc(II) with some nitrogen and oxygen donor ligands." Journal of Indian Chemical Society Vol. 79, Aug 2002 (2002): 645–48. https://doi.org/10.5281/zenodo.5843255.

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Department of Chemistry, Hindu College. Moradabad-244 001, India <em>Fax : </em>91-0591-440070 <em>Manuscript received 20 February 2001, revived 13 December 2001. accepted 12 February 2002</em> A quantitative study on metal-ligand equilibria involving Ni<sup>II</sup>, Cu<sup>ll</sup> or Zn<sup>II</sup> and 1,2-dihydroxybenzene <em>(ca), </em>1-amino-2-naphthol-4- sulfonic acid (nn) or 8-amino-1-naphthol-3,6-disulfonic acid (an) has been made in solution at 25º and at ionic strength of 0.10 <em>M </em>(KNO<sub>3</sub>). Formation of the different complex species has been inferred, and

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37

Capozzi, Maria Annunziata M., and Cosimo Cardellicchio. "(S,S)-2-(((Hydroxynaphth-1-yl)(4′-nitrophenyl)methyl)amino)-3-methylbutanoic Acid Methyl Ester." Molbank 2022, no. 4 (2022): M1528. http://dx.doi.org/10.3390/m1528.

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The solvent-free Betti reaction of 2-naphthol, 4-nitrobenzaldehyde and (S)-valine methyl ester gave the corresponding aminobenzylnaphthol of the (S,S)-2-(((hydroxynaphth-1-yl)(4′-nitrophenyl)methyl)amino)-3-methylbutanoic acid methyl ester in good yield (59%). This product was fully characterized. We observed that the racemization that occurs in some Betti reactions with (S)-valine methyl ester was absent in this reaction, and thus the predominant (S,S)-product was obtained.

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38

H., Abdellatif, and Abd El Rady E. "Facile route for the synthesis and characterization of new naphtho[2,3-f]quinoxaline-dione, trione and anthra-dione derivatives." Chemistry International 6, no. 3 (2020): 122–30. https://doi.org/10.5281/zenodo.3552253.

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In the present study, addition of nitroso group at position 1 of 2-aminoanthraquinone (1) to yield 2-amino-1-nitroanthraquinone (2) was carried out by the reaction of compound (1) with sodium nitrite in water. Compound (2) was used as starting material to produce many new naphtho[2,3-<em>f</em>] quinoxaline-dione, trione, naphtho-pyrazole quinoxaline-dione, anthra-triazine-dione, naphtho-thiazole quinoxaline-dione and anthrabenzo-triazepine-dione derivatives by elimination of one molecule of water as an initial reaction step. The reacting moieties were nitroso and amino function groups to yiel

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39

Qian, Siran, Mingjie Li, Jiaming Liu, and Cunde Wang. "A simple green protocol for the synthesis of ethyl 3-amino-1-aryl-1H-benzo[f] chromene-2-carboxylates in aqueous media." Journal of Chemical Research 41, no. 8 (2017): 487–90. http://dx.doi.org/10.3184/174751917x15016663252830.

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An eco-friendly and efficient straightforward method has been developed for the synthesis of ethyl 3-amino-1-aryl-1 H-benzo[ f]chromene-2-carboxylate derivatives via 1,4-diazabicyclo[2.2.2]octane (DABCO)-catalysed cyclisation of β-naphthol and 3-aryl-2-cyanoacrylates using water as a green solvent. All products precipitated from the reaction mixture and were isolated by simple filtration. No further work-up nor purification was necessary. The structure of ethyl 3-amino-1-aryl-1 H-benzo[ f]chromene-2-carboxylate was further confirmed by X-ray single crystal analysis.

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40

Kheirkhah, Leila, Manouchehr Mamaghani, Nosrat Ollah Mahmoodi, Asieh Yahyazadeh, and Seyedeh Saeedeh Mirnezami Ziabari. "Studies on the Synthesis of Substituted 2-amino-4H-benzo[h]chromene and 3-amino-1H-benzo[f]chromene Derivatives Using Base Supported Ionic Liquid Like-phase (SILLP) as an Efficient Green Catalyst." Journal of Chemical Research 41, no. 1 (2017): 21–24. http://dx.doi.org/10.3184/174751917x14815427219202.

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The synthesis of several substituted 2-amino-4 H-benzo[ h]chromene and 3-amino-1 H-benzo[ f]chromene derivatives was carried out using a one-pot three-component reaction of an arylaldehyde, malononitrile and a naphthol in H2O and in the presence of recyclable base supported ionic liquid like-phase as an efficient green catalyst.

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41

Skrzypek, Alicja, Monika Karpińska, Małgorzata Juszczak, et al. "Cholinesterases Inhibition, Anticancer and Antioxidant Activity of Novel Benzoxazole and Naphthoxazole Analogs." Molecules 27, no. 23 (2022): 8511. http://dx.doi.org/10.3390/molecules27238511.

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Benzoxazole and naphthoxazole fused systems are found in many biologically active molecules. Novel benzoxazole and naphthoxazole analogs functionalized by the 2,4-dihydroxyphenyl moiety were designed, obtained and evaluated as a broad spectrum of biological potency compounds. Sulfinylbis[(2,4-dihydroxyphenyl)methanethione] or its analogs and 2-aminophenols or 1-amino-2-naphthol were used as starting reagents. 4-(Naphtho[1,2-d][1,3]oxazol-2-yl)benzene-1,3-diol was identified as the most promising compound of the nanomolar activity against AChE (IC50 = 58 nM) of the mixed-type inhibition and of

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42

Aesha F SH Abdassalam, Aesha F. SH Abdassalam, Semih Kurban Semih Kurban, and Nahide Gulsah Deniz and Cigdem Sayil Nahide Gulsah Deniz and Cigdem Sayil. "Synthesis and Characterization of New Naphtho- and Tetracyclic Diazaquinone Derivatives." Journal of the chemical society of pakistan 41, no. 5 (2019): 834. http://dx.doi.org/10.52568/000805/jcsp/41.05.2019.

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In this study, new 1,4-naphtho- and 5-nitro-1,4-naphtho derivatives containing N- and N,N-substituted groups which has not been reported yet, have been synthesized from 2,3-dichloronaphthalene-1,4-diones (1,9). Compounds of 2-choloro-3-((2,4,6-triflorophenyl)amino)naphthalene-1,4-dione (3) and 2-chloro-3-((4-florophenyl)amino)naphtalene-1,4-dione (7) were obtained by reactions of 2,3-dichloronaphthalene-1,4-dione 1 with 4-fluoroaniline (6) and 2,4,6-trifloroaniline (2), respectively involving a Michael addition. We reported the cyclization reactions of compounds 1 to benzo[g]pirido[3,2-b]quino

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43

Rosenkranz, Herbert S., and Gilles Klopman. "Structural basis of the mutagenicity of 1-amino-2-naphthol-based azo dyes." Mutagenesis 5, no. 2 (1990): 137–46. http://dx.doi.org/10.1093/mutage/5.2.137.

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44

Yu, Jianning, Na Wei, Chong Li, et al. "Enhancement of Efficiency and Lifetime of Blue Organic Light-Emitting Diodes Using Two Dopants in Single Emitting Layer." Advances in Materials Science and Engineering 2012 (2012): 1–4. http://dx.doi.org/10.1155/2012/247976.

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We have demonstrated efficient blue organic light-emitting diode with the structure of indium tin oxide/4,4′,4″-tris(N-(2-naphthyl)-N-phenyl-amino)triphenylamine/1,4-bis[N-(1-naphthyl)-N′-phenylamino]-4,4′-diamine/9,10-di(2-naphthyl)anthracene (ADN): 1-4-di-[4-(N,N-di-phenyl)amino]styryl-benzene (DSA-ph) 3 wt%/tris-(8-hydroxyquinoline)aluminum/LiF/Al. Improved efficiencies and longer operational lifetime were obtained by codoping a styrylamine-based dopant BD-3 (0.1 wt%) into the emitting layer of ADN doped with DSA-ph compared to the case of non-codoping. This was due to the improved charge b

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45

Gornostaev, L. M., T. A. Rukovets, E. V. Arnold, Yu G. Khalyavina, and Yu V. Gatilov. "Oximation of 2-(R1-Amino)-4-(R2-imino)naphthalen-1(4H)-ones." Russian Journal of Organic Chemistry 54, no. 1 (2018): 78–86. http://dx.doi.org/10.1134/s1070428018010062.

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46

Xu, Jia-Ying, Zhao-Chang Gao, Kai-Jin Sun, and Wei-Hua Cheng. "2-Amino-4-(3-fluorophenyl)-6-(naphthalen-1-yl)pyridine-3-carbonitrile." Acta Crystallographica Section E Structure Reports Online 66, no. 12 (2010): o3291. http://dx.doi.org/10.1107/s1600536810048257.

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47

Wang, Jian-Qiang, Shi-Gui Tang, and Cheng Guo. "2-Amino-4-(4-fluorophenyl)-6-(naphthalen-1-yl)pyridine-3-carbonitrile." Acta Crystallographica Section E Structure Reports Online 67, no. 1 (2010): o56. http://dx.doi.org/10.1107/s1600536810050804.

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48

Blagus, Anita, and Branko Kaitner. "1-[(4-{[(2-Oxo-1,2-dihydronaphthalen-1-ylidene)methyl]amino}anilino)methylidene]naphthalen-2(1H)-one dihydrate." Acta Crystallographica Section E Structure Reports Online 67, no. 11 (2011): o2958—o2959. http://dx.doi.org/10.1107/s1600536811041870.

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49

YOSHIDA, Tomohiko, Hirokazu TANIGUCHI, Shuji OTUKA, and Sabro NAKANO. "Fluorometric determination of 1-naphthol and carbaryl with 3-amino-2(1H)-quinolinethione. IV." CHEMICAL & PHARMACEUTICAL BULLETIN 37, no. 7 (1989): 1823–26. http://dx.doi.org/10.1248/cpb.37.1823.

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50

Malinowska, Martyna, and Anna Zawisza. "Development of Bifunctional Chiral Thioureas and Thiosquaramides in the Synthesis of Betti Bases." Molecules 28, no. 23 (2023): 7835. http://dx.doi.org/10.3390/molecules28237835.

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Bifunctional thioureas and, for the first time, bifunctional thiosquaramides as organocatalysts were used in the asymmetric Betti reaction involving 1-, 2-naphthols and hydroxyquinoline with N-tosylimine and ketimine. The described methodology affords direct access to chiral aminoarylnaphthols in excellent yield (up to 98%) with high enantioselectivity (up to 80% ee) and enantioenriched 3-amino-2-oxindoles (up to 78% yield, up to 98% ee).

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