Process for preparing 4-aminopyrazolo-(3,4-d)pyrimidine

Details Process for preparing 4-aminopyrazolo-(3,4-d)pyrimidine Process for preparing 4-aminopyrazolo-(3,4-d)pyrimidine

1979-06-20

1981-05-12

Daus, Donald G.

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

Organic compounds

Pteroyl per se or having -c-, wherein x is chalcogen, bonded...

548377, C07D48704

Patent

active

042673240

ABSTRACT:
There is described a process for synthesizing 4-aminopyrazolo(3,4-d)pyrimidine wherein 3-amino-4-cyanopyrazole is reacted with formamidine or a salt of formamidine at a temperature in the range of from about 85.degree. C. to about 125.degree. C.

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patent: 3948913 (1976-04-01), Howarth et al.
Robins, "J. Amer. Chem. Soc.", vol. 78, 1956, pp. 784-790.
Taylor et al., "J. Amer. Chem. Soc.", vol. 82, 1960, pp. 3138-3141.

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