Tandem Thien- and Benzannulations of α‑Alkenoyl-α-alkynyl Ketene Dithioacetals with Cyanoacetates: Synthesis of Functionalized Benzo[b]thiophenes
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资源简介：
A novel domino annulation strategy for the construction of benzo[b]thiophenes has been developed. In the presence of Cs2CO3 and Ag2CO3, a wide range of α-alkenoyl-α-alkynyl ketene dithioacetals readily react with cyanoacetates in CH3CN at 110 °C under N2 to afford multisubstituted benzo[b]thiophenes efficiently via tandem thien- and benzannulations. A plausible mechanism is also proposed.
创建时间：
2016-02-13
