Thiazolo(oxazolo)thieno[b]pyrimidines. Preparation from 2-allylthio(oxy)thieno[2,3-d]pyrimidines and hydrolysis |
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| Authors: | S. M. Khripak V. I. Yakubets Yu. V. Migalina A. S. Koz'min N. S. Zefirov |
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| Affiliation: | (1) Uzhgorod State University, 294005 Uzhgorod;(2) M. V. Lomonosov Moscow State University, 117234 Moscow |
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| Abstract: | Heterocyclization of 5,6-disubstituted 2-allylthio(oxy)-4-oxothieno[2,3-d]pyrimidines by treatment with halogens affords thieno[3,2-e]thiazolo[3,2-a]pyrimidine iminium salts. Treatment of these salts with aqueous sodium acetate results in cleavage of the thiazoline ring.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 3, pp. 413–418, March, 1989. |
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