Improved access to thiazolo [5, 4-d] thiazole and thieno [2, 3-d] thiazole

A Rössler, P Boldt

文献索引：Rossler, Alexander; Boldt, Peter Journal of the Chemical Society - Perkin Transactions 1, 1998 , # 4 p. 685 - 687

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被引用次数: 4

摘要

Five-membered rings are of interest as building blocks for nonlinear optical (NLO) materials. We found easy access to the title compounds: thiazolo [5, 4-d] thiazole 1 has been obtained in three simple steps starting with the chlorination of ethyl isothiocyanatoacetate 8, followed by dehydrohalogenation to the diethyl 2, 5-dicarboxylate of 1, which yielded 1 after saponification and decarboxylation. Thieno [2, 3-d] thiazole 2 has been synthesized in two ...