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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2091187Generated: November 1, 2026

Hydrochloric Acid → 1-{5-chloro-1-[3-(trifluoromethyl)phenyl]-1H-indol-2-yl}heptan-1-one

https://huagongshe.com/reaction/2091187

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPotassium CarbonateHCID 11430—
ReactantBenzene, 1-iodo-3-(trifluoromethyl)-HCID 67868—
ReactantHCID 66777278HCID 66777278—
Catalystcopper(I) bromideHCID 24593—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product1-{5-chloro-1-[3-(trifluoromethyl)phenyl]-1H-indol-2-yl}heptan-1-oneHCID 6677899817%

Reaction Conditions

Temperature180 °C

Reaction Steps

A mixture of 1-(5-chloro-1H-indol-2-yl)heptan-1-one (9.14 g) synthesized above, 3-iodobenzotrifluoride (1.97 mL), copper (I) bromide (327 mg), potassium carbonate (2.36 g) and N-methyl-2-pyrrolidone (30 mL) was deaerated, and the mixture was stirred under argon atmosphere at 180° C. for 1 day. 1N Hydrochloric acid was added to the reaction mixture, and the mixture was extracted with ethyl acetate. The extract was washed with saturated brine, dried over magnesium sulfate, and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (10% ethyl acetate/hexane) to give the title object compound (0.78 g, 17%) as a brown oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08436043B2
Source datasetuspto-grants-2013_05
ORD IDord-63b93bbe090d4ca5b63c8163f05c29a6
Source noteuspto-grants-2013_05