The title three types of 2,3-diarylthienopyridines can be conveniently prepared from the respective aryl(chloropyridinyl)methanones in one-pot. The starting ketones react with sodium sulfide nonahydrate to generate aryl[(sodiosulfanyl)pyridinyl]methanones, which are treated successively with 4-(BrCH2)C(6)H(4)EWGs and sodium hydride to give rise to the desired products in generally good yields.
The title three types of 2,3-diarylthienopyridines can be conveniently prepared from the respective aryl(chloropyridinyl)methanones in one-pot. The starting ketones react with sodium sulfide nonahydrate to generate aryl[(sodiosulfanyl)pyridinyl]methanones, which are treated successively with 4-(BrCH2)C(6)H(4)EWGs and sodium hydride to give rise to the desired products in generally good yields.