Regio- and Stereoselectivity in the Titanium-Mediated Cyclopropanation of ω-Alkenoic Diesters: Application in the Diastereoselective Synthesis of Pyrrolidinone
作者:Jean Ollivier、Jean-Marc Garnier、Mouhamad Jida
DOI:10.1055/s-2006-950268
日期:2006.10
The titanium-mediated intramolecular cyclopropanation of ω-allylic succinates leads only to cyclopropanol, arising from exclusive reactivity of one ester function. As an extension of this methodology, the diastereoselective synthesis of highly functionalized pyrrolidinone has been realized from cheap commercially available L-aspartic acid.
ω-烯丙基琥珀酸酯的钛介导的分子内环丙烷化仅导致环丙醇,这是由一种酯官能团的专有反应性引起的。作为该方法的延伸,高度官能化的吡咯烷酮的非对映选择性合成已从廉价的市售 L-天冬氨酸中实现。