Process for preparing herbicidal triazines

Details Process for preparing herbicidal triazines Process for preparing herbicidal triazines

1977-12-27

1979-04-17

Ford, John M.

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

Organic compounds

Four or more ring nitrogens in the bicyclo ring system

544211, C07D25146

Patent

active

041502256

ABSTRACT:
In a process for the preparation of 3-substituted-1-methyl-6-substituted-amino-s-triazine-2,4(1H,3H)-diones by liquid phase cyclization in the presence of an alkali metal alkoxide or hydroxide catalyst of an alkyl-N-(N-substituted carbamoyl-N',N-dialkylamidino)-N-methylcarbamate, by which by-product alkanol, ROH, is formed in the reaction dispersion, the improvement comprising removing the by-product alkanol from the reaction dispersion by vaporization therefrom substantially as it is formed.

REFERENCES:
patent: 3850924 (1974-11-01), Ruchs et al.
patent: 3907795 (1975-09-01), Tocker
patent: 3983116 (1976-09-01), Lin

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