作者:Gregory R. Boyce、Stefania F. Musolino、Jianing Yang、Andrew D. Smith、James E. Taylor
DOI:10.1021/acs.joc.2c01602
日期:2022.10.7
The use of 2-carboxyphenylboronic acid (5 mol %) and oxalic acid (10 mol %) with 2-butanone as a solvent for the racemization of a range of enantiomerically pure secondary and tertiary alcohols is demonstrated. The process is postulated to proceed via reversible Brønsted acid-catalyzed C–O bond cleavage through an achiral carbocation intermediate.
演示了使用 2-羧基苯基硼酸 (5 mol%) 和草酸 (10 mol%) 与 2-丁酮作为溶剂对一系列对映体纯的仲醇和叔醇进行消旋化。假设该过程通过非手性碳阳离子中间体通过可逆的布朗斯台德酸催化的 C-O 键裂解进行。