Title:
PRODUCTION OF ESTER OF BIPHENYL-4-CARBOXYLIC ACID AND PHENOL COMPOUND
Document Type and Number:
Japanese Patent JP2535788
Kind Code:
B2
Abstract:
PURPOSE: To provide a process for producing the subject ester useful as an intermediate raw material for the synthesis of functional materials, pharmaceuticals and agrochemicals in high yield.
CONSTITUTION: This compound of formula II is produced by reacting 4bromoblphenyl with a phenol compound of formula I (R1 to R3 are each H, an alkyl, an alkoxy or an aryl; R1 and R2 are not sterically hindered groups at the same time) and carbon monoxide in the presence of an organic strong base (e.g. cyclic amidine or cyclic guanidine) using a palladium complex catalyst at 50-200°C preferably 110-130°C under carbon monoxide pressure of 1-50 bar, preferably 3-10 bar. The amounts of the phenol compound and the palladium complex are preferably 1.0-1.5mol and 0.002-0.008 mol based on 1mol of 4- bromobiphenyl, respectively. Even if the phenol compound has steric hindrance substituents on both 2- and 6-sites, the reaction is smoothly performed by using the phenol compound in the form of K salt or Na salt.
Inventors:
KUBOTA YOSHIHIRO
HANAOKA TAKAMASA
TAKEUCHI KAZUHIKO
SUGI YOSHIHIRO
HANAOKA TAKAMASA
TAKEUCHI KAZUHIKO
SUGI YOSHIHIRO
Application Number:
JP16446394A
Publication Date:
September 18, 1996
Filing Date:
June 23, 1994
Export Citation:
Assignee:
KOGYO GIJUTSUIN
International Classes:
C07C67/36; B01J31/24; C07B61/00; C07C69/773; (IPC1-7): C07C69/773; C07C67/36
Domestic Patent References:
| JP62187434A | ||||
| JP3258752A | ||||
| JP4169557A |
Attorney, Agent or Firm:
Director, Institute of Materials Technology, Institute of Industrial Technology
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