The organocatalyticasymmetric Morita–Baylis–Hillman (MBH) reaction of isatin derivatives with various vinyl sulfones is disclosed. Chiral sulfone-containing 3-hydroxyoxindoles were produced in good to high yields and with good to high ee’s. This report displays an unprecedented example to apply activated alkenes with sulfone moiety other than carbonyl groups in asymmetric MBH reactions and provides
公开了靛红衍生物与各种乙烯基砜的有机催化不对称 Morita-Baylis-Hillman (MBH) 反应。以良好至高产率和良好至高 ee 生产了手性含砜 3-hydroxyoxindoles。该报告展示了一个前所未有的例子,即在不对称 MBH 反应中应用具有除羰基以外的砜基团的活化烯烃,并提供了一种有效的策略来结合砜官能团以合成手性 3-羟基吲哚。