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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1702963Generated: October 30, 2026

Hydrochloric Acid → 3,4-Dimethyl-2-pentenoylchloride

https://huagongshe.com/reaction/1702963

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantThionyl ChlorideHCID 24386—
ReactantEthyl 3,4-dimethyl-2-pentenoateHCID 281491—
SolventBenzeneHCID 241—
Product3,4-Dimethyl-2-pentenoylchlorideHCID 54127392—

Reaction Steps

3,4-Dimethyl-2-pentenoic acid (XI, 4.1 g) was heated to a gentle boil with thionyl chloride (50 g) in benzene (50 mL) until the generation of hydrochloric acid gas ceased. Removal of the excess thionyl chloride and benzene by evaporation in vacuo followed by a distillation of the reaction product gave pure 3,4-dimethyl-2-pentenoylchloride (IX, 64° C. (9.5 mm)).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04350638
Source datasetuspto-grants-1982_09
ORD IDord-ca025f933d654ceab519a593a8a60d57
Source noteuspto-grants-1982_09