FIELD: chemistry.
SUBSTANCE: there is described a single-step method for synthesis of 1-(β-phenylethyl)-4-(para-dimethylaminobenzylidenamino)-1,2,4-triazole bromide with high output without release of intermediate products using one solvent. In accordance with the described method, 4-amino-1,2,4-triazole is dissolved in butanol, a solution of β-bromoethylbenzene is added to the butanol, the mixture is boiled for 6-8 hours, cooled to 50-60°C, a solution of para-dimethylaminobenzaldehyde is added, as well as a catalytic amount of concentrated hydrobromic acid, the mixture is kept at 50-60°C for 3-5 hours with subsequent cooling to room temperature; the precipitate is filtered, washed with diethyl ether or butanol and dried in air.
EFFECT: design of an efficient method of producing heterocyclic compounds.
2 cl, 1 ex
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1-(β-PHENYLETHYL)-4-(PARA-DIMETHYLAMINOBENZYLIDENEAMINO)- -1,2,4-TRIAZOLIUM BROMIDE SHOWING ANTIOXIDANT, ANTI-ISCHEMIC, β-ADRENOBLOCKING, UTEROTONIC AND DECREASING INTRAOCULAR PRESSURE EFFECTS | 1997 |
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Authors
Dates
2010-01-27—Published
2006-06-09—Filed