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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1848692Generated: October 30, 2026

Thionyl Chloride → 2-(4-Chlorophenyl)ethyl chloride

https://huagongshe.com/reaction/1848692

Reaction equation

Participants

RoleNameHCIDCharge
ReactantThionyl ChlorideHCID 24386—
Reactantp-Chlorophenethylic alcoholHCID 74647—
CatalystDimethylacetamideHCID 31374—
Product2-(4-Chlorophenyl)ethyl chlorideHCID 3790359105.4%

Reaction Conditions

Temperature55 °C

Reaction Steps

In a 250-mL round bottom flask equipped with overhead stirring, a thermocouple, a condenser, and a nitrogen bubbler vented to a caustic scrubber, 2-(4-chlorophenyl)ethanol (40.011 g, 255 mmol) and N,N-dimethylacetamide (1.197 mL, 12.77 mmol) were heated to 55° C. Thionyl chloride (19.58 mL, 268 mmol) was added slowly and significant off-gassing was observed. After the addition was complete the resulting dark-brown solution was stirred at between 60 and 64° C. for 1.5 hours and then allowed to cool to room temperature and stirred overnight to give the title compound as a dark-brown oil (47.060 g, including DMA and thionyl chloride).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08952197B2
Source datasetuspto-grants-2015_02
ORD IDord-83ba028f48194462ba3cce07620353d6
Source noteuspto-grants-2015_02