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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1919805Generated: November 3, 2026

Sulfuric Acid → Benzenemethanol, 3-(1,1-difluoroethyl)-

https://huagongshe.com/reaction/1919805

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSulfuric AcidHCID 1118—
ReactantAluminium lithium hydrideHCID 21226445—
ReactantHCID 57471636HCID 57471636—
SolventTetrahydrofuranHCID 8028—
ProductBenzenemethanol, 3-(1,1-difluoroethyl)-HCID 5744633497%

Reaction Steps

Add a solution of 3-(1,1-Difluoro-ethyl)-benzoic acid ethyl ester (3.57 mmol) in THF (5 mL) dropwise to a 1M solution of lithium aluminum hydride in THF (4.3 mL) at room temperature. Stir for 20 minutes then add ice followed by a mixture of concentrated sulfuric acid and ice (approximately 1:1 v:v). Extract with ethyl ether, dry the organic extracts over sodium sulfate, filter, and evaporate to give the title compound in 97% yield. GCMS MW 172 (M). 1H NMR (400.43 MHz, CDCl3): δ 7.49 (s, 1H), 7.41-7.39 (m, 3H), 4.70 (s, 2H), 1.94-1.85 (m, 3H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08168659B2
Source datasetuspto-grants-2012_05
ORD IDord-bd08815dcea1436faca19f85429d6fc2
Source noteuspto-grants-2012_05