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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2268791Generated: November 1, 2026

Sodium Hydroxide → 1,2-Dimethyl-1H-benzo[d]imidazole-5,6-diamine

https://huagongshe.com/reaction/2268791

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
Reactant1,2-dimethyl-5,6-dinitrobenzimidazoleHCID 2729273—
ReactantTin atomHCID 5352426—
SolventHydrochloric AcidHCID 313—
SolventWaterHCID 962—
Product1,2-Dimethyl-1H-benzo[d]imidazole-5,6-diamineHCID 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 numberUS06329375B1
Source datasetuspto-grants-2001_12
ORD IDord-2a1c9d82cafd4cd49f55f3e4d55ec126
Source noteuspto-grants-2001_12