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2.994  Articles
1 of 300 pages  |  10  records  |  more records»
A novel styrene (1) and azo-styrene (2) based chemosensor from vanillin has been successfully synthesized. Sensor 1 was obtained by one step Knoevenagel condensation of Ultrasound method and sensor 2 by coupling diazo and Knoevenagel condensation reaction... see more

In the present research, a series of some azo compounds (5-9) and 1,2,3-triazoles derived from 2-methyl quinazolin-4(3H)-one were synthesized successfully by stepwise routes includes the following: 3-amino-2-methylquinazolin-4(3H)-one (3) prepared firstly... see more

Preparative method of synthesis of new photochromic polymers based on polymethacrylic acid by post-coupling reaction was found. Azobenzene side-chains of obtained polymers contain derivatives of different nature. Photooptical properties of polymer films, ... see more

In the present research, a series of some azo compounds (5-9) and 1,2,3-triazoles derived from 2-methyl quinazolin-4(3H)-one were synthesized successfully by stepwise routes includes the following: 3-amino-2-methylquinazolin-4(3H)-one (3) prepared firstly... see more

New sulfa drugs azo dyes (HL1, HL2, HL3, HL4 and HL5) were prepared by the coupling of 6-formyl-7-hydroxy-5-methoxy-2-methylbenzopyran-4-one with the sulfa drugs (sulfadiazine, sulfapyridine, sulfamethoxazole, sulfadimidine, sulfathiazole). The five prepa... see more

Recently different excipients, including colouring agents, are often used to give a marketable appearance and improve the consumer characteristics of drugs. Usually they are applied in the composition of medicines for internal use (tablets, capsules, syru... see more

A series of monoazo disperse dyes were synthesized by coupling diazotized 4-amino-N-dodecyl-1,8-naphthalimide with N,N-dialkyl anilines and naphthol derivatives. The synthesized intermediates and the dyes were charac­terized using FTIR, 1H-NMR, 13C-NMR, m... see more

Recently different excipients, including colouring agents, are often used to give a marketable appearance and improve the consumer characteristics of drugs. Usually they are applied in the composition of medicines for internal use (tablets, capsules, syru... see more

A novel azo-dye  was isolated by a diazo-coupling reaction and characterized by the elemental analysis, mass spectra, IR and UV-VIS spectroscopy. The processes of complex formation of H4L with some mono-, bis-, and trivalent metal cations were studie... see more

1 of 300 pages  |  10  records  |  more records»