A highly efficient sulfonylation of para-quinone methides with sulfonyl hydrazines in water has been developed on the basis of the mode involving a tetrabutyl ammonium bromide (TBAB)-promoted sulfa-1,6-conjugated addition pathway. This reaction provides a green and sustainable method to synthesize various unsymmetrical diarylmethyl sulfones, showing good functional group tolerance, scalability, and regioselectivity. Further transformation of the resulting diarylmethyl sulfones provides an efficient route to some functionalized molecules.
已开发出一种在水中基于四丁基溴化铵(TBAB)促进的磺酰-1,6-共轭加成途径的对苯醌甲烯与磺酰基腙的高效磺化反应。该反应提供了一种绿色和可持续的方法来合成各种非对称二芳基甲基砜,表现出良好的官能团容忍性、可扩展性和区域选择性。进一步转化所得的二芳基甲基砜提供了一种有效的途径来合成一些官能化分子。