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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 341789Generated: October 31, 2026

Sodium Dithionite → 3-Amino-1,2,4-benzotriazine

https://huagongshe.com/reaction/341789

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium DithioniteHCID 24489—
Reactant3-Amino-1,2,4-benzotriazine-1-oxideHCID 79470—
SolventEthanolHCID 702—
Product3-Amino-1,2,4-benzotriazineHCID 88336—

Reaction Steps

A mixture of 8.1 g (49 mmol) 1,2,4-benzotriazine-3-amine 1-oxide, 8.1 g sodium dithionite and 800 ml 70 percent ethanol is heated under reflux for 1 h. One filters hot, evaporates the filtrate, washes the residue with water and dries. There remain 7.0 g 1,2,4-benzotriazine-3-amine (98% of theory) of the m.p. 208°-210° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05856325
Source datasetuspto-grants-1999_01
ORD IDord-c226919073fc4fcab20174f586860c05
Source noteuspto-grants-1999_01