Process for the preparation of 2-(methylthio)barbituric acid

Details Process for the preparation of 2-(methylthio)barbituric acid Process for the preparation of 2-(methylthio)barbituric acid

1990-07-30

1992-03-17

Shen, Cecilia

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

Organic compounds

Nitrogen attached directly or indirectly to the purine ring...

C07D23902

Patent

active

050970305

ABSTRACT:
2-(methylthio)barbituric acid is obtained with high yields and degree of purity by reacting a solution or suspension of an alkali metal salt or alkaline earth metal salt of 2-thiobarbituric acid with methyl bromide at a pressure of 1.5 to 5 bar.

REFERENCES:
patent: 2140987 (1938-12-01), Dickey
patent: 2161212 (1939-06-01), Whitmore
patent: 2876225 (1959-03-01), Donnison
patent: 4199583 (1980-04-01), Moon et al.
Moon et al., CA 93-90184k (1980).
Muehle et al., CA 82-4292n (1975).
Maurer et al., CA 86-140080b (1977).

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