作者:Su Yong Shim、Soo Min Cho、Anipireddy Venkateswarlu、Do Hyun Ryu
DOI:10.1002/anie.201700890
日期:2017.7.17
addition initiated cyclopropanation/retro-Claisen rearrangement tandem reaction was developed for the enantioselective synthesis of highly functionalized 2,5-dihydrooxepines. In the presence of a chiral oxazaborolidinium ion (COBI) catalyst, the reaction proceeds to give good yields and high enantioselectivity.
开发了迈克尔加成引发的环丙烷化/复古-克莱森重排串联反应,用于对映选择性合成高度官能化的2,5-二氢氧杂环丁烷。在手性恶唑硼烷鎓离子(COBI)催化剂的存在下,反应进行以得到良好的产率和高的对映选择性。