Sidearm as a Control in the Asymmetric Ring Opening Reaction of Donor-Acceptor Cyclopropane
作者:Qikai Kang、Lijia Wang、Zhongbo Zheng、Junfang Li、Yong Tang
DOI:10.1002/cjoc.201400053
日期:2014.8
trisoxazoline and bisthiazoline based ligands have been developed,which are absent of chiral motif on the parent skeleton and containa chiral backbone on sidearm. The ligands promote the amine nucleophilic ring opening reaction of 1,1‐cyclopropane diesters smoothly, furnishing the γ‐amino acid derivatives in high yield with moderate to good enantioselectivity.
已开发出一种新型的基于三恶唑啉和联硫唑啉的配体,其在母体骨架上不具有手性基序,而在侧臂上则具有一个手性骨架。配体可顺利地促进1,1-环丙烷二酯的胺亲核开环反应,从而以中等至良好的对映选择性高产率地提供γ-氨基酸衍生物。