科研之友
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摘要
A six-step synthesis of the unsymmetrical trimethylbenzotristhiazole has been developed. Starting from 2-methylbenzothiazole following nitration, reduction, acetylation, thionation, and twofold cyclization, the desired trimethylbenzotristhiazole was obtained in good yield. Its condensation with donor-substituted benzaldehydes presents the way to new octupolar chromophores. The attempt to synthesize such benzotristhiazole from dinitroaniline failed; this procedure afforded a new benzimidazole derivative.
- 出版日期2013-5
