N–O Tethered Carbenoid Cyclopropanation Facilitates the Synthesis of a Functionalized Cyclopropyl-Fused Pyrrolidine
作者:Dimpy Kalia、Gökce Merey、Min Guo、Herman O. Sintim
DOI:10.1021/jo400788a
日期:2013.6.21
We report a facile approach to a cyclopropyl-fused pyrrolidine, which contains four stereogenic centers, by employing the N–O tethered carbenoid methodology. The synthesis was facilitated by the development of a direct Mitsunobu reaction of alcohols with N-alkyl-N-hydroxyl amides to give diazo precursors, which upon intramolecularcyclopropanation yielded a library of N–O containing cyclopropyl-fused