作者:Cajetan Dogo-Isonagie、Tefsit Bekele、Stefan France、Jamison Wolfer、Anthony Weatherwax、Andrew E. Taggi、Daniel H. Paull、Travis Dudding、Thomas Lectka
DOI:10.1002/ejoc.200600819
日期:2007.3
The mechanism of the catalytic, asymmetric α-bromination of acid chlorides is probed through a series of crossover experiments, ion-pairing tests, and kinetic resolution studies to shed light on the factors that contribute to, and limit the production of, optically-active α-bromo esters. In order to understand better the observed sense of induction, as well as the high degree of enantiomeric excess
通过一系列交叉实验、离子对测试和动力学拆分研究,探讨了酰氯催化不对称 α-溴化的机制,以阐明导致和限制光学活性产生的因素α-溴酯。为了更好地理解观察到的感应感,以及这些产品表现出的高度对映体过量,对相关过渡态采用了广泛的分子模型。最后,α-溴酯产品的有用性通过其简单的衍生为手性环氧化物来证明。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)