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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1508007Generated: October 31, 2026

Hydrazine → HCID 178452686, compound

https://huagongshe.com/reaction/1508007

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazineHCID 9321—
ReactantHCID 86678953HCID 86678953—
SolventWaterHCID 962—
SolventIsopropanolHCID 3776—
ProductHCID 178452686HCID 178452686—

Reaction Conditions

Temperature120 °C

Reaction Steps

[4-(6-Chloro-5-cyano-pyrazin-2-yl)-phenyl]carbamic acid tert-butyl ester (1.0 g) was suspended in a mixture of 10 ml iPrOH and 10 ml 35% hydrazine in water at RT and heated to 120° C. by microwave irradiation for 70 min under stirring in a sealed vessel. The reaction mixture was left to cool to RT, and the precipitate was filtered off and washed with water to afford [4-(3-amino-1H-pyrazolo[3,4-b]pyrazin-6-yl)-phenyl]-carbamic acid tert-butyl ester as a yellow solid after drying under vacuum. Yield: 815 mg (83%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09221828B2
Source datasetuspto-grants-2015_12
ORD IDord-1a2d2643fc614696bce803675ee1bc39
Source noteuspto-grants-2015_12