Acceleration of the intramolecular Diels-Alder reaction of vinylsulfonic esters and amides bearing acyclic and carbocyclic 1,3-diene moieties by application of high pressure leads to excellent yields of sultones and sultams, respectively, at ambient temperature. The influence of pressure on the stereoselectivity of these processes has been investigated. (C) 2000 Elsevier Science Ltd. All rights reserved.
Sultones in Organic Synthesis
作者:Peter Metz
DOI:10.1002/prac.19983400102
日期:——
Sultones are readily prepared by intramolecular Diels-Alder reaction of vinylsulfonates in an often highly stereoselective fashion. Various methods for the synthetic elaboration of these heterocycles have been developed and applied to the total synthesis of biologically active natural products.