Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 409891Generated: October 30, 2026

Oxalyl chloride → 6-(Trifluoromethyl)benzo[b]thiophene-2-carbonyl chloride

https://huagongshe.com/reaction/409891

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
Reactant6-(Trifluoromethyl)benzo[b]thiophene-2-carboxylic acidHCID 17979523—
CatalystDimethylformamideHCID 6228—
SolventDichloromethaneHCID 6344—
Product6-(Trifluoromethyl)benzo[b]thiophene-2-carbonyl chlorideHCID 57718789—

Reaction Steps

To a mixture of 6-(trifluoromethyl)benzo[b]thiophene-2-carboxylic acid 4a (65 mg, 0.26 mmol) in CH2Cl2 (2.5 mL) was added (COCl)2 (0.026 mL, 0.30 mmol), followed by DMF (1 drop) at room temperature. The reaction was kept at room temperature for 20 h. The resulting solution was concentrated to give compound 4b.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08759533B2
Source datasetuspto-grants-2014_06
ORD IDord-d8b18ac9511a4acb98d4a2af7aa2bb92
Source noteuspto-grants-2014_06