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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1992945Generated: October 30, 2026

Oxalyl chloride → 3-(Trifluoromethyl)-3,4-dihydronaphthalen-1(2H)-one

https://huagongshe.com/reaction/1992945

Reaction equation

Participants

RoleNameHCIDCharge
ReactantOxalyl chlorideHCID 65578—
ReactantAluminum(III) ChlorideHCID 6451240—
ReactantHCID 68541211HCID 68541211—
SolventDichloromethaneHCID 6344—
Product3-(Trifluoromethyl)-3,4-dihydronaphthalen-1(2H)-oneHCID 1379079182.7%

Reaction Steps

4,4,4-Trifluoro-3-(phenylmethyl)butanoic acid (177) (0.97 g, 4.18 mmol) was treated with oxalyl chloride followed by AlCl3 in CH2Cl2 to give 0.74 g (82%) of the title compound (178) as an off-white solid. 1H NMR (400 MHz, CDCl3): δ 2.60-2.75 (m, 1H), 2.85-3.00 (m, 2H), 3.05-3.25 (m, 2H), 7.30 (d, J=7.7 Hz, 1H), 7.37 (t, J=7.6 Hz, 1H), 7.50-7.57 (m, 1H), 8.05 (d, J=7.7 Hz, 1H). LCMS (ESI): m/z 215 (M−H)−.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07649093B2
Source datasetuspto-grants-2010_01
ORD IDord-872b74e5b75a43a8b740e3998f2e9066
Source noteuspto-grants-2010_01