Title:
【発明の名称】α-トコフェロールの製造
Document Type and Number:
Japanese Patent JPH11511175
Kind Code:
A
Abstract:
Disclosed is an improved process for the preparation of alpha-tocopherol by the hydroxymethylation followed by the hydrogenation of non- alpha -tocopherols comprising beta -, gamma -, and delta -tocopherols using a particular palladium on alumina catalyst wherein (1) the dispersion and depth of deposition of the palladium metal are within certain ranges, and (2) the alumina is of a particular crystalline phase.
Inventors:
Ku, Yang-Jen
Hartley, Gray, Wayne
Guttuffson, Bruce, Leroy
Allen, David, John
Hartley, Gray, Wayne
Guttuffson, Bruce, Leroy
Allen, David, John
Application Number:
JP50952297A
Publication Date:
September 28, 1999
Filing Date:
August 14, 1996
Export Citation:
Assignee:
Eastman Chemical Company
International Classes:
B01J21/04; B01J23/44; C07B61/00; C07D311/72; (IPC1-7): C07D311/72; B01J21/04; B01J23/44
Attorney, Agent or Firm:
Takashi Ishida (4 others)