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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 430996Generated: October 30, 2026

Sodium Hydroxide → HCID 5297144, compound

https://huagongshe.com/reaction/430996

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant1,2-dimethyl-5,6-dinitrobenzimidazoleHCID 2729273—
ReactantTin atomHCID 5352426—
SolventHydrochloric AcidHCID 313—
SolventWaterHCID 962—
ProductHCID 5297144HCID 5297144—

Reaction Conditions

Temperature10 °C

Reaction Steps

1,2-Dimethyl-5,6-dinitrobenzimidazole was reduced with tin in hydrochloric acid. The solution obtained from the reduction was diluted with water, cooled to 10° C., and treated with 40% NaOH. The precipitate which formed was filtered, washed with water and recrystallized from alcohol to yield 1,2 dimethly-5,6 diaminobenzimidazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06656940B2
Source datasetuspto-grants-2003_12
ORD IDord-1852346d4b8545c09873d4a052afba8c
Source noteuspto-grants-2003_12