Title:
PRODUCTION OF HYDROXYSTILBENE CARBOXYLIC ACID COMPOUND
Document Type and Number:
Japanese Patent JP3875365
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain the subject carboxylic acid useful as a raw material for electroluminescence elements, liquid crystalline compound mesogens and the like in a stable yield by reacting a specific compound with a specific phosphorus compound.
SOLUTION: (A) A phosphorus compound of the formula: R2OOC-Ar2-CH2PO (OR3)2 {R2 is H or the like; R3 is phenyl or the like; Ar2 is a group of formula I [R4 is a 1-20C alkyl or the like; (m1) is an integer of 0-4] or the like} is activated with (B) a basic catalyst in an amount of 0.1-10 moles per mole of the component A, and subsequently reacting the activated compound with (C) a compound of the formula: R3-O-Ar1-CHO {R5 is a 1-20C hydrocarbon group or the like; Ar1 is a group of formula II [R1 is a 1-20C alkyl or the like; (n1) is an integer of 0-4] or the like} in an A:C molar ratio of 1:5 usually at the atmospheric pressure at -70 to 200°C for 0.1-100 hr to obtain the objective carboxylic acid of the formula : HO-Ar1-CH2=CH2-Ar2-COOR2.
Inventors:
Shinichi Komatsu
Akira Takagi
Yoshihiro Kobori
Akira Takagi
Yoshihiro Kobori
Application Number:
JP23650697A
Publication Date:
January 31, 2007
Filing Date:
August 18, 1997
Export Citation:
Assignee:
Shin Nippon Oil Co., Ltd.
International Classes:
C07C65/19; C07C67/343; C07B61/00; C07C51/367; C07C67/31; C07C69/94; (IPC1-7): C07C65/19; C07C67/31; C07C69/94; //C07B61/00
Domestic Patent References:
| JP5032587A | ||||
| JP3190845A | ||||
| JP4202125A | ||||
| JP11501314A | ||||
| JP54095552A | ||||
| JP61078737A |
Other References:
MYLONA,A. et al.,Journal of Chemical Research (Synopses),1986年,No.12,p.433
Attorney, Agent or Firm:
Junyuki Morita
Hideyo Okazawa
Hideyo Okazawa