2-methyl-thio-4,6-diaryl-triazines

Details 2-methyl-thio-4,6-diaryl-triazines 2-methyl-thio-4,6-diaryl-triazines

1991-08-05

1992-04-21

Ford, John M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C07D25122

Patent

active

051069725

ABSTRACT:
There is disclosed a process for the preparation of 2-(2',4'-dihydroxyphenyl)-4,6-diaryl-s-triazines of formula (1) as indicated in claim 1, which process comprises reacting, in a first step, a compound of formula (4) as indicated in claim 1, with the aid of a Lewis acid, in the presence of xylene or toluene, with a substituted benzene of formula (5) as indicated in claim 1, and, in a second step, reacting the resultant compound of formula (2) as indicated in claim 1, in the presence of toluene or xylene, with chlorine or sulfuryl chloride, to give the compound of formula (3) as indicated in claim 1, and, in a third step, reacting the resultant compound with 1,3-dihydroxybenzene, with the aid of a Lewis acid, to give the compound of formula (1), in the presence of toluene, xylene or a mixture of xylene isomers.

REFERENCES:
Simig et al., Chemical Abstracts, vol. 85, entry 93363p (1976).
Augustin et al., Chemical Abstracts, vol. 93, entry 26307a (1980).
Wakabayashi et al., Chemical Abstracts, vol. 74, entry 31019v (1971).

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