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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 904359Generated: October 30, 2026

p-Toluenesulfonic acid → 1-Dimethylaminosulfonyl-2-amino-6-(alpha-isopropylidenbenzyl)benzimidazole

https://huagongshe.com/reaction/904359

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant1-Dimethylaminosulfonyl-2-amino-6-(alpha-isopropyl-alpha-hydroxybenzyl)benzimidazoleHCID 20490458—
SolventChloroformHCID 6212—
Product1-Dimethylaminosulfonyl-2-amino-6-(alpha-isopropylidenbenzyl)benzimidazoleHCID 20490457—

Reaction Steps

When the procedure of Example 72 was repeated using 1.2 g. (3.2 mmoles) of 1-dimethylaminosulfonyl-2-amino-6-(α-isopropyl-α-hydroxybenzyl)benzimidazole, 750 mg. of p-toluenesulfonic acid, and 100 ml. of chloroform, there was obtained 1-dimethylaminosulfonyl-2-amino-6-(α-isopropylidenebenzyl)benzimidazole.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04230868
Source datasetuspto-grants-1980_10
ORD IDord-973bdce8ea8243719fdd319f58253836
Source noteuspto-grants-1980_10