An efficient cooperative biscinchona alkaloid and Lewis acid catalytic system was developed in the enantioselective α-alkylation of 2-oxindoles with (3-indolyl)(phenyl)methanols to provide (2-oxindole)-linker-indole derivatives in good yields (70–83%) with high enantioselectivities (81%–92%).
在 2-oxindoles 与 (3-indolyl)(phenyl)methanols 的对映体选择性α-烷基化反应中,开发了一种高效的双
金鸡纳
生物碱和
路易斯酸协同催化体系,以良好的收率(70%-83%)和较高的对映体选择性(81%-92%)提供 (2-oxindole)-linker-indole 衍
生物。