Synthesis of 3,6-dialkyl-5,6-dihydro-4-hydroxy-pyran-2-one
申请人:Roche Colorado Corporation
公开号:US06552204B1
公开(公告)日:2003-04-22
The present invention relates to a novel process for producing a &dgr;-lactone of the formula:
using an acyl halide of the formula:
wherein R1, R2 R3 and X are described herein. In particular, the present invention relates to a process for enantioselectively producing the &dgr;-lactone and novel intermediates disclosed herein.