Title:
アルキル置換ブテノールの製造方法
Document Type and Number:
Japanese Patent JP2004513871
Kind Code:
A
Abstract:
Alkyl-substituted butenols having the formula (I): R1-CH2-CH-CR2-CH2OH (I) wherein R1 is a saturated or olefinically unsaturated alkyl or cycloalkyl group having from 4 to 16 carbon atoms and wherein R1 is optionally substituted by an alkyl, cycloalkyl, aryl or alkaryl having up to 12 carbon atoms; R2 is hydrogen or an alkyl group having from 1 to about 6 carbon atoms are produced by a process which comprises: (1) reacting an aldehyde of the formula (II): R1-CH2-CHO (II) wherein R1 has the same meaning as in formula (I), with the corresponding lower aldehyde to form an unsaturated aldehyde in an inert organic solvent; (2) continuously contacting an optionally calcined copper/zinc catalyst with the unsaturated aldehyde under isothermal conditions at temperatures of from about 45 to about 60° C. and under a hydrogen pressure of from 1 to about 300 bar.
Inventors:
Stephan Heck
Rotor friesenhagen
Norbert Klein
Thomas Markert
Gerrit Pelzer
Marx Schneider
Rotor friesenhagen
Norbert Klein
Thomas Markert
Gerrit Pelzer
Marx Schneider
Application Number:
JP2001524949A
Publication Date:
May 13, 2004
Filing Date:
September 08, 2000
Export Citation:
Assignee:
Cognis Deutschland Geselsyaft, Mito Beschlenktel Haftung und Companion Commande Geshesyaft
International Classes:
A61K8/34; C07B61/00; C07C29/141; C07C33/12; C07C45/74; C07C47/225; C11B9/00; A61K8/30; (IPC1-7): C07C29/141; A61K7/00; C07C33/12; C07C45/74; C07C47/225; C11B9/00
Attorney, Agent or Firm:
Aoyama Aoi
Osamu Kawamiya
Yasuo Shibata
Osamu Kawamiya
Yasuo Shibata