Organocatalytic asymmetric hydroxymethylation of isoindolinones with paraformaldehyde
作者:Francesco Scorzelli、Antonia Di Mola、Rosanna Filosa、Antonio Massa
DOI:10.1007/s00706-017-2070-1
日期:2018.4
AbstractActivated 3-substituted isoindolinones have been investigated as nucleophiles in the organocatalytic asymmetric cross-aldol reaction with formaldehyde for the synthesis of derivatives with tetrasubstituted stereocenters. Among the tested catalysts, bifunctional chiral tertiary amines led to the target products in high yields and moderate enantioselectivity, while chiral ammonium salts, tested
摘要已经研究了活化的3-取代的异吲哚啉酮在与甲醛的有机催化不对称交叉醛醇缩合反应中作为亲核试剂用于合成具有四取代的立体中心的衍生物。在测试的催化剂中,双功能手性叔胺可高产率和中等对映选择性地生成目标产物,而在相转移条件下测试的手性铵盐效果较差。 图形概要