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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 129857Generated: October 31, 2026

Benzimidazole → HCID 67781271, compound

https://huagongshe.com/reaction/129857

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzimidazoleHCID 5798—
Reactant4-(Bromomethyl)benzonitrileHCID 86996—
SolventDimethylformamideHCID 6228—
ProductHCID 67781271HCID 67781271141.5%

Reaction Steps

Using the procedure of Step B of Example 1, 951 mg of benzimidazole and 1.97 g of 4-bromomethyl benzonitrile in dimethylformamide were reacted to obtain 2.48 g of crude product which was chromatographed on silica (eluant: methylene chloride-methanol (95-5)) to obtain 1.34 g of the desired product melting at 94° C. after Crystallization from ether. An analytical sample was prepared by two successive crystallizations of 422 mg of the product from ether, then from isopropyl ether to obtain 167 mg of pure product melting at 94° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05470867
Source datasetuspto-grants-1995_11
ORD IDord-cdcb1946c2944f19860a5a0c174bf803
Source noteuspto-grants-1995_11