A new domino reaction between thioaurones and malononitrile has been reported. This reaction allows efficient access to benzothiophene-fused pyran derivatives in good yields under mild reaction conditions. The substrate scope is broad; a series of benzothiophene-fused pyran derivatives have been synthesized.

中文翻译：

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哌啶促进多米诺反应合成苯并噻吩-稠合吡喃衍生物

已经报道了硫磺酮和丙二腈之间的新多米诺反应。该反应允许在温和的反应条件下以良好的产率有效地获得苯并噻吩稠合的吡喃衍生物。底物范围广；合成了一系列苯并噻吩稠合的吡喃衍生物。