[EN] METHOD FOR PREPARING 2H-AZIRINE CARBOXYLIC ESTERS<br/>[FR] PROCÉDÉ DE PRÉPARATION D'ESTERS CARBOXYLIQUES DE 2H-AZIRINE
申请人:UNIV NANYANG TECH
公开号:WO2013081549A1
公开(公告)日:2013-06-06
The invention relates to a method for preparing 2H-azirine carboxylic esters. More specifically, the invention relates to a method for preparing 2H-azirine carboxylic esters starting from α-diazo-β-keto oxime ethers in the presence of a rhodium (II)-based catalyst.
Expedient Synthesis of Highly Substituted Pyrroles via Tandem Rearrangement of α-Diazo Oxime Ethers
作者:Yaojia Jiang、Wei Chuen Chan、Cheol-Min Park
DOI:10.1021/ja300552c
日期:2012.3.7
An efficient rhodium-catalyzed synthesis of 2H-azirines and pyrroles has been developed. Novel rearrangement of α-oximino ketenes derived from α-diazo oxime ethers provides 2H-azirines bearing quaternary centers and allows for subsequent rearrangement to highly substituted pyrroles in excellent yields.
One-Pot Synthesis of Multifunctionalized 1-Pyrrolines from 2-Alkyl-2<i>H</i>-azirines and Diazocarbonyl Compounds
作者:Ilya P. Filippov、Mikhail S. Novikov、Alexander F. Khlebnikov、Nikolai V. Rostovskii
DOI:10.1021/acs.joc.2c00977
日期:2022.7.1
the synthesis of 1-pyrrolines based on formal [4 + 1] annulation of 2-alkyl-2H-azirines with diazocarbonyl compounds has been developed. This one-pot approach includes the Rh(II)-catalyzed formation of 4-alkyl-2-azabuta-1,3-dienes, followed by the DBU-promoted cyclization, and features a good substrate tolerance. The 1-pyrrolines containing an ester group at the C3 were prepared in a three-step one-pot