Tetrahedron letters

Synthesis of enones and butenolides using organomanganese pentacarbonyl complexes.

P DeShong, DR Sidler, GA Slough

Index: DeShong, Philip; Sidler, Daniel R.; Slough, Greg A. Tetrahedron Letters, 1987 , vol. 28, # 20 p. 2233 - 2236

Full Text: HTML

Citation Number: 30

Abstract

Abstract Sequential insertion of carbon monoxide and alkynes into alkylmanganese pentacarbonyl complexes at pressures of 6 kbar provides unsaturated manganacycles in a regioselective manner. The manganacycles can be transformed under acidic conditions into a mixture of enone and furanone. Alternatively, themanganacycle can be reduced with DIBAL-ate complex to furnish the butenolide.