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
Atom-Economical Synthesis of Complex Heterocycles with NO Moiety
作者:Gökçe Merey、Gökhan Sezen
DOI:10.1002/hlca.201500076
日期:2015.9
A concise and facile method for the synthesis of heterocyclic compounds with NO tether was introduced. The two important steps of the synthesis are a Mitsunobu reaction and CH activation. The Mitsunobu protocol allows to form the NOmoiety in the molecule, while subsequent CH activation leads to heterocycles.