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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2418689Generated: November 2, 2026

p-Toluenesulfonic acid → 88450-60-6

https://huagongshe.com/reaction/2418689

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
Reactant2,4-DichloroanilineHCID 11123—
Reactant2,4-DimethylbenzaldehydeHCID 61814—
SolventTolueneHCID 1140—
Product88450-60-6HCID 13339988—

Reaction Steps

A mixture of 26.8 g. of 2,4-dimethylbenzaldehyde, 32.4 g. of 2,4-dichloroaniline, 0.20 g. of p-toluenesulfonic acid, and 150 ml of toluene is stirred under reflux using a Dean-Stark moisture trap. Evaporation of the mixture affords a solid which is recrystallized from ethanol to yield N-(2,4-dimethylbenzylidene)-2,4-dichloroaniline, mp 102°-106°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04473579
Source datasetuspto-grants-1984_09
ORD IDord-f60acec866b94558b4c5697b721baa83
Source noteuspto-grants-1984_09