Tandem multi-step synthesis of C-carboxyazlactones promoted by N-heterocyclic carbenes

Chem Commun (Camb). 2008 Aug 14:(30):3528-30. doi: 10.1039/b806816j. Epub 2008 Jul 7.

Abstract

Cascade reaction sequences incorporating N-heterocyclic carbene-based organocatalysis have been developed that allow the direct preparation of a range of (+/-)-4-phenoxycarbonylazlactones in good isolated yields (66-84%) from the corresponding N-p-anisoyl amino acids.