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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 858535Generated: October 31, 2026

Sodium Hydroxide → HCID 21876005, compound

https://huagongshe.com/reaction/858535

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantHCID 21876482HCID 21876482—
SolventSulfuric AcidHCID 1118—
ProductHCID 21876005HCID 2187600583%

Reaction Steps

A solution of 1-[4-(2-chloroethyl)phenyl]-2-ethyl-4,6-dimethyl-1H-benzimidazole-5-carbonitrile (Example 329, step 6, 997 mg, 2.95 mmol) in c.H2SO4 (50 ml) was stirred at 80° C. for 15 h. The mixture was poured onto ice and was neutralized with NaOH. The mixture was extracted with ethyl acetate (600 ml). The organic layer was washed with brine (300 ml), then dried (Na2SO4). The solvent was removed to afford 871 mg (83%) of the title compound as white solids.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07148234B2
Source datasetuspto-grants-2006_12
ORD IDord-18f91dff4f2543e88077e1e8a1bd1cfb
Source noteuspto-grants-2006_12