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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1031015Generated: October 31, 2026

Hydrochloric Acid → HCID 22402967, compound

https://huagongshe.com/reaction/1031015

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantMethanolHCID 887—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 22402944HCID 22402944—
SolventWaterHCID 962—
ProductHCID 22402967HCID 2240296798.4%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of dimethyl 1-benzyl-2-methyl-4,5-benzimidazoledicarboxylate (5.50 g, 16.2 mmol), methanol, 10N sodium hydroxide (13 mL, 130 mmol) and water is stirred for 4 hours at 70° C., cooled, acidified to pH 4 with hydrochloric acid and filtered to afford the title product as an off-white solid (4.94 g, 98.4%), mp 224°-226° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05108485
Source datasetuspto-grants-1992_04
ORD IDord-f7f64d46d09b4e9f849e683ca97552ea
Source noteuspto-grants-1992_04