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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1656486Generated: October 31, 2026

Dimethylformamide → 3,5-Dichloro-4-formylbenzoyl chloride

https://huagongshe.com/reaction/1656486

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantThionyl ChlorideHCID 24386—
Reactant3,5-dichloro-4-formylbenzoic acidHCID 19788159—
SolventTolueneHCID 1140—
Product3,5-Dichloro-4-formylbenzoyl chlorideHCID 19788147115.8%

Reaction Conditions

Temperature70 °C

Reaction Steps

A mixture of 4-formyl-3,5-dichlorobenzoic acid (15.0 g, 0.06 moles), thionyl chloride (12.1 g, 0.107 moles), and dimethylformamide (5 ml) in toluene (100 ml) was slowly warmed to 70° C. and stirred at that temperature for 2 hours. The toluene was eliminated in the rotavap to yield 16.5 g of 4-formyl-3,5-dichlorobenzoyl chloride used in the next step as such.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05254584
Source datasetuspto-grants-1993_10
ORD IDord-bdb321b1468e41af96217e976d46362c
Source noteuspto-grants-1993_10