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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 461848Generated: October 25, 2026

Ammonia → Benzo[4,5]thiazolo[2,3-c][1,2,4]triazol-3(2H)-one

https://huagongshe.com/reaction/461848

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantUreaHCID 1176—
Reactant2-Benzothiazolinone, hydrazoneHCID 11988—
ProductBenzo[4,5]thiazolo[2,3-c][1,2,4]triazol-3(2H)-oneHCID 178518874—

Reaction Steps

2-Hydrazinobenzothiazole (100 grams) and urea (100 grams) were fused on an oil bath at about 180° C. for about an hour, by which time the molten material had solidified and evolution of ammonia had ceased. The solid thus obtained, the desired s-triazolo(3,4-b)benzothiazol-3-ol, was recrystallized twice from methanol, m.p., 235° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04064261
Source datasetuspto-grants-1977_12
ORD IDord-f7b742480a194742812562bd135ee7a9
Source noteuspto-grants-1977_12