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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 127754Generated: October 30, 2026

Acetic Acid → HCID 20285748, compound

https://huagongshe.com/reaction/127754

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantHydrochloric AcidHCID 313—
ReactantFormaldehydeHCID 712—
ReactantHCID 12875260HCID 12875260—
ProductHCID 20285748HCID 20285748—

Reaction Steps

3.04 G. of 2,4-dimethyl-5-chloro-thiophene are dissolved in 60 ml. of acetic acid and 2.1 g. of formalin and 32 ml. of concentrated hydrochloric acid are added. The mixture is stirred at room temperature for 2 hours, then poured into ice water and extracted with hexane. The organic solution is washed with 5% sodium bicarbonate solution, dried, filtered and evaporated to yield 2,4-dimethyl-3-chloromethyl-5-chloro-thiophene.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04256878
Source datasetuspto-grants-1981_03
ORD IDord-8a31c52861ca4158b0ccb4812939e816
Source noteuspto-grants-1981_03