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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 358877Generated: October 26, 2026

Thionyl Chloride → 2,4,5-Trifluoro-3-methoxybenzoyl chloride

https://huagongshe.com/reaction/358877

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactant2,4,5-Trifluoro-3-methoxybenzoic acidHCID 2733970—
SolventBenzeneHCID 241—
Product2,4,5-Trifluoro-3-methoxybenzoyl chlorideHCID 2775281—

Reaction Steps

To a solution of 1.14 g (0.0055 mole) of 3-methoxy-2,4,5-trifluorobenzoic acid (XXVI) (prepared as described in Preparation 1 or 2) in 10 ml of dry benzene was added 5 ml of thionyl chloride and the mixture was heated under reflux for 1 hour. At the end of this time, benzene and the excess of thionyl chloride were removed completely to give 3-methoxy-2,4,5-trifluorobenzoyl chloride (XXVII) [Step (E7)].

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04997943
Source datasetuspto-grants-1991_03
ORD IDord-e8340abe867a4d70b81c6228fb698fd8
Source noteuspto-grants-1991_03