Suhui Wang, Y. Zha, Shi-Xue Wang
Sep 1, 2015
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Journal
Research on Chemical Intermediates
Abstract
An efficient and facile synthesis of 5-amino-2,3-dihydrobenzo[b]thiophene-4,6-dicarbonitrile and 5-amino-2,3-dihydrobenzo[d]thiazole-4,6-dicarbonitrile derivatives from the reactions of aldehyde, malononitrile, and dihydrothiophen-3(2H)-one or rhodanine has been reported. This is the first reported method for preparation of these compounds containing sulfur 2,6-dicyanoanilines. The compounds were confirmed by IR, 1H NMR, 13C NMR, and HRMS. The other advantages of this procure are simple handling, high yields, and short reaction times.