A mechanistically designed mono-cinchona alkaloid is an excellent catalyst for the enantioselective dihydroxylation of olefins
作者:E.J. Corey、Mark C. Noe、Michael J. Grogan
DOI:10.1016/s0040-4039(00)78237-2
日期:1994.8
advanced regarding the origin of enantioselectivity in the OsO4-promoted dihydroxylation of olefins catalyzed by bis-cinchona alkaloid derivatives such as 1, specifically strong evidence for reaction via transition state assembly 2, the mono-quinidine derivative 3 was selected as a promising catalytic ligand. The experimental observation of high enantioselectivity promoted by 3 provides additional
根据最近提出的关于OsO 4促进的由双金鸡纳生物碱衍生物(例如1)催化的烯烃的二羟基化中对映选择性的起源的想法,特别是有强有力的证据证明通过过渡态组装体2可以进行反应,单奎尼丁衍生物3是被选为有前途的催化配体。由3促进的高对映选择性的实验观察提供了有利于过渡态2的其他证据。