1H-Pyrazole-1-ethanol, 5-amino-4-nitroso- → 2-(4,5-Diamino-1H-pyrazol-1-yl)ethan-1-ol

HRID 1281177

Reaction equation

HRID 1281177 reaction equation
[NH2:1][C:2]1[N:6]([CH2:7][CH2:8][OH:9])[N:5]=[CH:4][C:3]=1[N:10]=O.[H][H]>>[NH2:10][C:3]1[CH:4]=[N:5][N:6]([CH2:7][CH2:8][OH:9])[C:2]=1[NH2:1]

Participants

3

Reactant 2

HCID 101490141H-Pyrazole-1-ethanol, 5-amino-4-nitroso-HCID 178418361HCID 178418361, compound

Product 1

HCID 102908472-(4,5-Diamino-1H-pyrazol-1-yl)ethan-1-ol

Procedure

contacting the alkanol solution of (IV) from step (vii) with hydrogen in the presence of an insoluble hydrogenation catalyst under hydrogenation conditions of temperature and pressure to produce a product solution of 4,5-diamino-1-(2′-hydroxyethyl)pyrazole in an alkanol; and

Sources & evidence

ORD record
ord-d0364093881343e99013748e2a2d3180
Source dataset
uspto-grants-2002_09
Patent number
US06452019B1

Linked notes

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