Process for the preparation of dialkoxytriazinylpyrenes

Details Process for the preparation of dialkoxytriazinylpyrenes Process for the preparation of dialkoxytriazinylpyrenes

1985-10-03

1987-06-23

Ford, John M.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

C07D25120

Patent

active

046754024

ABSTRACT:
The process for the preparation of 2,4-di-(C.sub.1 -C.sub.4)-alkoxy-1,3,5-triazinyl-6-pyrenes by reacting 2,4-dichloro-1,3,5-triazinyl-6-pyrene with alkali metal (C.sub.1 -C.sub.4)-alcoholates is carried out in a mixture of a lower alkanol and an aprotic, dipolar organic solvent. The product, which is of importance as an optical brightener, is obtained in an improved state of purity as a result of using this mixture of solvents, and higher degrees of whiteness are obtained thereby.

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