Boronic Acid Catalysis as a Mild and Versatile Strategy for Direct Carbo- and Heterocyclizations of Free Allylic Alcohols
作者:Hongchao Zheng、Sina Ghanbari、Shinji Nakamura、Dennis G. Hall
DOI:10.1002/anie.201201620
日期:2012.6.18
BAC to the future: Boronic acid catalysis (BAC) was applied to the direct activation of alcohols leading to the preparation of carbocycles (see scheme), benzofurans, tetrahydrofurans, pyrrolidines, pyrans, piperidines, and various polycyclic compounds. The reactions proceed under mild conditions that circumvent the use of reactive leaving groups like halides.
未来的BAC:将硼酸催化(BAC)应用于醇的直接活化,从而制备碳环(参见方案),苯并呋喃,四氢呋喃,吡咯烷,吡喃,哌啶和各种多环化合物。反应在避开反应性离去基团(如卤化物)的温和条件下进行。