ISSN:
1573-8353
Keywords:
nitropyrazole
;
acetoacetic ester
;
pyrazolopyrimidine
;
diketene
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract Two major compounds are formed in the reaction of 3,5-diamino-4-nitropyrazole with acetoacetic ester: 2-amino-5-methyl-3-nitro-4,7-dihydropyrazolo[1,5-a]pyrimidin-7-one and 3-amino-5-(β-hydroxycrotonyl)amino-4-nitropyrazole. The latter is converted to bicyclic dihydropyrazolo[1,5-a]-pyrimidinone in solutions with heating.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02256847
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