<i>C</i>
‐Propargylation Overrides
<i>O</i>
‐Propargylation in Reactions of Propargyl Chloride with Primary Alcohols: Rhodium‐Catalyzed Transfer Hydrogenation
作者:Tao Liang、Sang Kook Woo、Michael J. Krische
DOI:10.1002/anie.201603575
日期:2016.8
The canonical SN2 behavior displayed by alcohols and activated alkyl halides in basic media (O‐alkylation) is superseded by a pathway leading to carbinol C‐alkylation under the conditions of rhodium‐catalyzed transfer hydrogenation. Racemic and asymmetric propargylations are described.
在铑催化的转移加氢条件下,醇和活化的烷基卤化物在碱性介质(O-烷基化)中表现出的标准S N 2行为被导致甲醇C-烷基化的途径所取代。描述了外消旋和不对称的炔丙基化。