Title:
NEW ALDEHYDE COMPOUND AND ITS PRODUCTION
Document Type and Number:
Japanese Patent JP3871005
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a new aldehyde compound satisfying an electrophotographic characteristic and useful as an intermediate for synthesis of a triarylamine compound which is a raw material monomer for a polymer-type charge transport material.
SOLUTION: This aldehyde compound is shown by formula I (R1 is an alkyl or an acyl; Ar1, Ar2 and Ar4 are each an allylene; Ar3 is an aryl). The compound of formula I is obtained by formylation of a triarylamine compound of formula II (Ar2 is an aryl). The aldehyde compound of formula I can be produced, for example, by dropping phosphorus oxychloride into N,N'- dimethylformamide in a stream of nitrogen gas while cooling them in ice to form Vilsmeier's reagent and dropping a DMF solution of 4-(4-methoxyphenethyl) triphenylamine into the reagent. Accordingly an intermediate for synthesis of dihydroxystilbene compound useful as a raw material monomer for an aromatic polycarbonate resin suitable for a polymer-type charge transport material used for an electrophotographic photoreceptor can be provided.
Inventors:
Chiaki Tanaka
Masaomi Sasaki
Kazuki Nagai
Shinichi Kawamura
Lee Hongkuk
Masaomi Sasaki
Kazuki Nagai
Shinichi Kawamura
Lee Hongkuk
Application Number:
JP25891698A
Publication Date:
January 24, 2007
Filing Date:
September 11, 1998
Export Citation:
Assignee:
株式会社リコー
International Classes:
C07C221/00; C07C223/06; G03G5/06; G03G5/07; (IPC1-7): C07C223/06; C07C221/00; G03G5/06; G03G5/07
Domestic Patent References:
| JP9194442A | ||||
| JP4282349A |
Attorney, Agent or Firm:
Tadahiko Ito