Facile synthesis of 2-alkyl/aryloxy-2H-azirines and their application in the synthesis of pyrroles
作者:Xinxin Qi、Xianxiu Xu、Cheol-Min Park
DOI:10.1039/c2cc30490b
日期:——
Free carbenes generated from alpha-diazo oxime ethers by photolysis undergo facile N-O insertion to afford 2-alkyl/aryloxy-2H-azirines in good to excellent yields. This method allowed for the development of a tandem reaction for pyrrolesynthesis via 1,3-dipolar cycloaddition.
Stereoselective Synthesis of α-Diazo Oxime Ethers and Their Application in the Synthesis of Highly Substituted Pyrroles through a [3+2] Cycloaddition
作者:Emmanuvel Lourdusamy、Lin Yao、Cheol-Min Park
DOI:10.1002/anie.201004073
日期:2010.10.18
The stereoselective diazo transfer reaction with oxime ethers offers an efficient route to the corresponding α‐diazo oxime ethers. The utility of these compounds has been demonstrated by the synthesis of highlysubstituted pyrroles through a [3+2] cycloaddition of α‐oximino carbenoids with enamines (see scheme).