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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1657272Generated: October 27, 2026

Hydrochloric Acid → 2,2-Diphenyl-2-(2-propynyl)acetaldehyde

https://huagongshe.com/reaction/1657272

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantWaterHCID 962—
Reactant2,2-Diphenylpent-4-ynenitrileHCID 10823417—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
Product2,2-Diphenyl-2-(2-propynyl)acetaldehydeHCID 10799701—

Reaction Steps

A mixture of 2,2-diphenyl-2-(2-propynyl)acetonitrile (1.38 g) and lithium aluminum hydride (0.21 g) in tetrahydrofuran (15 ml) was refluxed for 2 hours. The reaction mixture was poured into cold water, acidified with hydrochloric acid and extracted with diethyl ether. The extract was washed with brine, dried over magnesium sulfate and evaporated in vacuo. The residue was purified by column chromatography on silica gel with a mixture of n-hexane and benzene (1:1) as an eluent to give 2,2-diphenyl-2-(2-propynyl)acetaldehyde (0.46 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05256824
Source datasetuspto-grants-1993_10
ORD IDord-53da709d82214db89488facac587c2c3
Source noteuspto-grants-1993_10