Method for producing 1-unsubstituted pyrazolo[3,4-b]pyridine ket

Details Method for producing 1-unsubstituted pyrazolo[3,4-b]pyridine ket Method for producing 1-unsubstituted pyrazolo[3,4-b]pyridine ket

Filed on

1975-04-16

Date issued

1976-10-19

Examiner

Jiles, Henry R.

Patent Class

Chemistry of carbon compounds

SubClass

Miscellaneous organic carbon compounds

SubSubClass

C-metal

Other Related Categories

260250AH, 2602564R, 260268BC, 2602936, 2602955B, C07D47104

Type

Patent

Status

active

Patent number

039870510

Description

ABSTRACT:
A new process for the production of pyrazolo-[3,4-b]pyridine ketones which are unsubstituted in the 1-position comprises reacting a 1-furanylmethylpyrazolo[3,4-b]pyridine ketone with an inorganic strong mineral acid like sulfuric acid, phosphoric acid or polyphosphoric acid.

REFERENCES:
wiley, "Pyrazoles, Pyrazolines etc.," (1967), pp. 73 & 74.

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