Title:
安息香酸類の製造方法
Document Type and Number:
Japanese Patent JP5091929
Kind Code:
B2
Abstract:
A nucleophilic substitution reaction on optionally substituted dihalobenzenes is carried out in the presence of an optional catalyst followed by formation of and subsequent carboxylation of a Grignard reaction intermediate. In particular the present invention provides a process leading to optionally substituted hydroxybenzoic, alkanoyloxybenzoic, formyloxybenzoic and alkoxybenzoic acids from 1-substituted 2,6-dihalobenzenes. The invention also provides a process for the direct formation of an acyl chloride from a Grignard reagent by quenching with phosgene.
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Inventors:
Joshua Anthony Chung
Ferraydon Abdesaken
Lori Ann Spangler
Sudar Ramtils Joshi
Charles Chao Wu
Ferraydon Abdesaken
Lori Ann Spangler
Sudar Ramtils Joshi
Charles Chao Wu
Application Number:
JP2009202490A
Publication Date:
December 05, 2012
Filing Date:
September 02, 2009
Export Citation:
Assignee:
Dow Agro Sciences LLC
International Classes:
C07C51/367; B01J27/122; B01J27/26; C07C51/15; C07C51/58; C07C65/03; C07C65/21; C07C67/08; C07C69/07; C07C69/157; C07C69/24; C07B61/00
Domestic Patent References:
| JP8188553A | ||||
| JP58170780A | ||||
| JP7242594A | ||||
| JP2006412A | ||||
| JP10510537A | ||||
| JP61263955A | ||||
| JP4334337A | ||||
| JP3135943A |
Foreign References:
| WO1999029699A1 | ||||
| US5484926 |
Other References:
SELL,M.S. et al,Synthetically useful mono-functionalizations of dihaloarenes via Rieke metals,Synthetic Communications,1994年,Vol.24, No.16,p.2379-86
Attorney, Agent or Firm:
Hiroshi Kobayashi
Eiji Katayama
Norio Omori
Nao Fujita
Yasuhito Suzuki
Eiji Katayama
Norio Omori
Nao Fujita
Yasuhito Suzuki