base-mediated [3 + 3] benzannulation strategy for the conversion of 1,3-bis(sulfonyl)propenes and β,γ-unsaturated α-ketoesters to diaryl sulfones has been developed. This method provides facile, metal-free and efficient access to highly substituted diaryl sulfones in good to excellent yields. In addition, the sulfonyl group could be easily removed or converted to other functional groups via an organostannane
已开发出一种由碱介导的[3 + 3]苯环芳构化策略,可将1,3-双(磺酰基)
丙烯和β,γ-不饱和α-
酮酸酯转化为二芳基砜。该方法可以轻松,无
金属且高效地获得高取代的二芳基砜,且收率良好。另外,磺酰基可通过
有机锡烷中间体容易地除去或转化为其他官能团。