Preparation of 4,6-diamino-5-arylazopyrimidines and adenine comp

Details Preparation of 4,6-diamino-5-arylazopyrimidines and adenine comp Preparation of 4,6-diamino-5-arylazopyrimidines and adenine comp

1976-10-18

1978-05-30

Coughlan, Jr., Paul M.

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

Organic compounds

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

260154, C07D47334

Patent

active

040923142

ABSTRACT:
The present invention relates to a novel and useful process for preparing 4,6-diamino-5-arylazopyrimidine from an arylazomalononitrile in the presence of ammonium chloride and formamide. If desired, the 4,6-diamino-5-arylazopyrimidine may then be hydrogenated to form 4,5,6-triaminopyrimidine which, when the hydrogenation is carried out in the presence of formic acid or its derivative, gives adenine.

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