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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1703786Generated: October 27, 2026

Acetaldehyde → 1-(4'-Trifluoromethyl-biphenyl-4-yl)-ethanol

https://huagongshe.com/reaction/1703786

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetaldehydeHCID 177—
ReactantMagnesiumHCID 5462224—
Reactant4-Bromo-4'-(trifluoromethyl)biphenylHCID 12712349—
CatalystBromineHCID 24408—
SolventTetrahydrofuranHCID 8028—
Product1-(4'-Trifluoromethyl-biphenyl-4-yl)-ethanolHCID 22760332—

Reaction Conditions

Temperature0 °C

Reaction Steps

To a stirred suspension of 1.5 g of magnesium turnings in 10 ml of dry tetrahydrofuran, add a small amount of 4'-trifluoromethyl-4-bromo[1,1']biphenyl and a few drops of bromine. When the reaction is started, add (dropwise) a solution of 16 g of 4'-trifluoromethyl-4-bromo-[1,1']biphenyl in 50 ml of tetrahydrofuran at 50°-60° C. Heat the mixture for one hour, cool to 0° C., and slowly (dropwise) add 7 g of acetaldehyde. Stir the reaction mixture at room temperature for twenty hours. Work-up the reaction mixture following the procedure of example 2, and isolate the desired product by chromatography, m.p. 116°-117°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04125612
Source datasetuspto-grants-1978_11
ORD IDord-fa52e0b551834cedb292336b24ee4b2d
Source noteuspto-grants-1978_11