Title:
【発明の名称】アリファチルホスフィン酸誘導体の製造方法
Document Type and Number:
Japanese Patent JP2645101
Kind Code:
B2
Abstract:
A process for the production of aliphatylphosphinic acid derivatives, especially of alkyl dialkoxyalkylphosphinates having the formula I in which R is C1-C4-alkyl and R min is hydrogen or C1-C4-alkyl, comprising reacting, in the presence of an acidic catalyst, aqueous phosphinic acid with the corresponding trialkyl orthoester having the formula II: (RO)3CR min II in which R and R min have their previous significances, the amount of the orthoester of formula II used being equal to, or in excess of the stoichiometric amount of both water and phosphinic acid present in the aqueous phosphinic acid reactant.
Inventors:
PIITAA SUTEIIBUN WAARUDOWAASU
ERITSUKU KIISU BEIRISU
ERITSUKU KIISU BEIRISU
Application Number:
JP22483488A
Publication Date:
August 25, 1997
Filing Date:
September 09, 1988
Export Citation:
Assignee:
CHIBA GAIGII AG
International Classes:
C07B61/00; C07F9/30; C07F9/32; C07F9/48; (IPC1-7): C07F9/32
Attorney, Agent or Firm:
Aoki Akira (3 outside)