Title:
【発明の名称】3,6-ジアルキル-5,6-ジヒドロ-4-ヒドロキシ-ピラン-2-オンの合成
Document Type and Number:
Japanese Patent JP2003521546
Kind Code:
A
Abstract:
The present invention relates to a novel process for producing a delta-lactone of the formula:using an acyl halide of the formula:wherein R<1>, R<2 >R<3 >and X are described herein, as well as novel intermediates. In particular, the present invention relates to a process for enantioselectively producing the (R)-delta-lactone.
Inventors:
Fleming, Michael Paul
Han, Yun-Kwai
Hodges, Louis M
Johnston, David A
Micheli, Roger Pea
Puenter, Kurt
Roberts, Christopher Earle
Scallone, michelangelo
Schwind, Marc Ar
Toppings, robert jay
Han, Yun-Kwai
Hodges, Louis M
Johnston, David A
Micheli, Roger Pea
Puenter, Kurt
Roberts, Christopher Earle
Scallone, michelangelo
Schwind, Marc Ar
Toppings, robert jay
Application Number:
JP2001556864A
Publication Date:
July 15, 2003
Filing Date:
January 26, 2001
Export Citation:
Assignee:
F. HOFFMANN-LA ROCHE AKTIENGESELLSCHAFT
International Classes:
C07B61/00; C07C67/30; C07C67/31; C07D305/12; C07D309/32; C07F3/02; (IPC1-7): C07D309/32
Attorney, Agent or Firm:
Hajime Tsukuni (1 person outside)