FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to the improved method for synthesis of 2-cyano-6-methoxybenthiazole that is a key intermediate compound used in synthesis of luminescent biological systems, in particular, lupiferin. Method involves cyaniding reaction of 2-chloro-6-methoxybenzthiazole wherein acetonecyanohydrine is used as a cyaniding agent that is treated with alkaline metal alcoholate alcoholic solution, benzene is added and azeotropic mixture alcohol-benzene is distilled off followed by addition of dimethylsulfoxide and 2-chloro-6-methoxybenzthiazole. Method allows avoiding contact of workers with highly toxic cyanides and to obtain 2-cyano-6-methoxybenzthiazole with higher yield 50-50.8% as compared with the prototype (40%).
EFFECT: improved method of synthesis.
3 ex
| Title | Year | Author | Number |
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| METHOD OF PREPARING IMIDAZO-(1,5-A)(1,4) DIAZEPINE DERIVATIVES OR THEIR SALTS | 0 |
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