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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 355040Generated: October 25, 2026

Sodium hydride → 7-(2-Oxo-3-phenyl-benzimidazolin-1-yl)-enanthic acid ethyl ester

https://huagongshe.com/reaction/355040

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium hydrideHCID 24758—
Reactant2H-Benzimidazol-2-one, 1,3-dihydro-1-phenyl-HCID 84657—
ReactantEthyl 7-chloroheptanoateHCID 529988—
SolventDimethylformamideHCID 6228—
Product7-(2-Oxo-3-phenyl-benzimidazolin-1-yl)-enanthic acid ethyl esterHCID 54304288—

Reaction Steps

The product is produced as described in example 1 from 1.9 g. of NaH (80% suspension in mineral oil), 13.2 g. of 1-phenylbenzimidazolin-2-one (produced in usual manner by subjecting N-phenyl-o-phenylenediamine to reaction with phosgene), 120 cc. of DMF, 12.1 g. of 7-chloroenanthic acid ethyl ester and 1.9 g. of NaJ. Eluant in chromatographic purification: hexane/ethylacetate.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04377695
Source datasetuspto-grants-1983_03
ORD IDord-5de6ee76530c498fbd32795bab90ea10
Source noteuspto-grants-1983_03