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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1702979Generated: October 30, 2026

Ammonia → 4(3H)-Quinazolinone, 3-amino-2-hydrazino-

https://huagongshe.com/reaction/1702979

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 178517815HCID 178517815—
SolventWaterHCID 962—
Product4(3H)-Quinazolinone, 3-amino-2-hydrazino-HCID 64057—

Reaction Steps

A mixture of 134 g of the product of Step B and 670 ml of hydrazine hydrate was refluxed with stirring for about 5 hours until evolution of ammonia ceased and the mixture was cooled slightly and was diluted with 670 ml of water. The mixture was cooled to room temperature and was filtered and the product was rinsed with water and methanol and dried to obtain 101.5 of 3-amino-2-hydrazino-quinazolin-4(3H)-one.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04350695
Source datasetuspto-grants-1982_09
ORD IDord-021658b6ce544c0c8061a5e51f515619
Source noteuspto-grants-1982_09