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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1848301Generated: November 1, 2026

Toluene → HCID 86642186, compound

https://huagongshe.com/reaction/1848301

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTolueneHCID 1140—
ReactantAcetic AnhydrideHCID 7918—
ReactantHCID 86642187HCID 86642187—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventPyridineHCID 1049—
ProductHCID 86642186HCID 8664218698.5%

Reaction Conditions

Temperature70 °C

Reaction Steps

1.15 g of 3-(3,5-bis(trifluoromethyl)phenyl)-1-(3-chloro-4-methylphenyl)-4,4,4-trifluoro-3-hydroxybutan-1-one, 2.3 g of toluene, 0.49 g of acetic anhydride, 29 mg of 4-dimethylaminopyridine and 0.38 g of pyridine were fed, and stirred for 9 hours at 70° C. The mixture was cooled to room temperature, and separated by adding 5 ml of toluene, iced water and 0.6 ml of concentrated hydrochloric acid. The organic phase was washed with water, and the solvent was distilled off under reduced pressure. The obtained residue was roughly purified by using a small amount of silica gel to obtain 1.09 g of 3-(3,5-bis(trifluoromethyl)phenyl)-1-(3-chloro-4-methylphenyl)-4,4,4-trifluoro-2-buten-1-one as yellow liquid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08952175B2
Source datasetuspto-grants-2015_02
ORD IDord-f2aeb64c6034453bb6f77f12098e080b
Source noteuspto-grants-2015_02