Title:
芳香族化合物のブロモメチル化方法
Document Type and Number:
Japanese Patent JP2005501114
Kind Code:
A
Abstract:
The present invention provides a process for bromomethylation of organic compounds, wherein said process is a two stage process comprising of the following stages: a) reacting paraformaldehyde with hydrogen bromide and separating bis-bromomethyl ether (BBME) from the reaction mixture, and, b) reacting BBME obtained in stage (a) with an organic compound in the presence of a Lewis acid, to obtain the bromomethylated organic compound. Further provided by the present invention is a process for the preparation of 4,4'-bis-(diethylphosphonomethyl)-biphenyl (BPMB).
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Inventors:
Grabalnick, Michael
Sasun, yoel
Sasun, yoel
Application Number:
JP2003523184A
Publication Date:
January 13, 2005
Filing Date:
August 29, 2001
Export Citation:
Assignee:
Maksim Chemical Works Limited
International Classes:
C07B37/04; C07B61/00; C07C17/32; C07C22/04; C07C17/263; C07C41/22; C07C43/12; C07F9/40; (IPC1-7): C07C17/263; C07C22/04
Attorney, Agent or Firm:
Yoshio Kawaguchi
Akio Ichiiri
Makoto Ono
Katsuma Osaki
Mitsuaki Tsubokura
Akio Ichiiri
Makoto Ono
Katsuma Osaki
Mitsuaki Tsubokura