Title:
【発明の名称】2―(2’,4’―ジヒドロキシフエニル)―4,6―ジアリール―S―トリアジンの製造方法
Document Type and Number:
Japanese Patent JP2857219
Kind Code:
B2
Abstract:
2-(2',4'-dihydroxyphenyl)-4,6-diaryl-s-triazines of the formula (1) given in Claim 1 are prepared by reacting, in a first step, a compound of the formula (4) given in Claim 1 with a substituted benzene of the formula (5) given in Claim 1 by means of a Lewis acid in the presence of xylene or toluene, reacting, in a second step, the compound obtained of the formula (2) given in Claim 1 with chlorine or sulphuryl chloride in the presence of toluene or xylene to give the compound of the formula (3) given in Claim 1 and reacting, in a third step, the compound obtained with 1,3-dihydroxybenzene by means of a Lewis acid to give the compound of the formula (1) in the presence of toluene, xylene or mixtures of xylene isomers.
More Like This:
Inventors:
BURDESKA KURT DR (CH)
GUENTER FRANZ DR (CH)
GUENTER FRANZ DR (CH)
Application Number:
JP10329090A
Publication Date:
February 17, 1999
Filing Date:
April 20, 1990
Export Citation:
Assignee:
CIBA GEIGY AG (CH)
International Classes:
C07D251/22; C07D251/24; C07D251/38; (IPC1-7): C07D251/24; C07D251/38
Domestic Patent References:
| JP4114737B1 |
Other References:
【文献】米国特許3268474(US,A)
Attorney, Agent or Firm:
Masao Okabe (11 others)