Title:
エチニル化法
Document Type and Number:
Japanese Patent JP4464131
Kind Code:
B2
Abstract:
A process for the manufacture of an acetylenically unsaturated alcohol comprising reacting formaldehyde, an aldehyde or a ketone (a carbonyl compound) with acetylene in the presence of ammonia and a strongly basic macroporous anion exchange resin, the latter preferably featuring a polystyrene matrix and quaternary ammonium groups, preferably of type I or Type II. The reaction products, which depending on the starting carbonyl compound are propargyl alcohol or 1-monosubstituted or 1,1-disubstituted derivatives thereof, are of use as intermediates in the synthesis of many useful end products, inter alia in the field of vitamins and carotenoids.
Inventors:
Bonrat, Werner
Engrert, Bernd
Karge, Reinhard
Michael Schneider
Engrert, Bernd
Karge, Reinhard
Michael Schneider
Application Number:
JP2003532430A
Publication Date:
May 19, 2010
Filing Date:
September 19, 2002
Export Citation:
Assignee:
DSM IP ASSETS B.V.
International Classes:
C07C29/42; C07B61/00; C07C33/042; C07C33/048
Domestic Patent References:
| JP46005066A | ||||
| JP2000086556A |
Attorney, Agent or Firm:
Yuichi Yamada
Masakazu Noda
Yoshinori Shimizu
Ikeda adult
Hiroto Kido
Masato Ikeda
Masakazu Noda
Yoshinori Shimizu
Ikeda adult
Hiroto Kido
Masato Ikeda