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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1388140Generated: November 2, 2026

Formaldehyde → 8-Cyclopropyl-2-methyleneoctanoic acid ethyl ester

https://huagongshe.com/reaction/1388140

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantPiperidineHCID 8082—
Reactant(6-Cyclopropylhexyl)-malonic acid ethyl esterHCID 54024252—
SolventPyridineHCID 1049—
Product8-Cyclopropyl-2-methyleneoctanoic acid ethyl esterHCID 54308484—

Reaction Steps

2.5 g of 8-cyclopropyl-2-methyleneoctanoic acid ethyl ester, in the form of a yellowish oil, which is purified by chromatography on silica gel (migrating agent: 90:10 petroleum ether/ethyl acetate), are obtained by the procedure described in Example (1b) from 4.53 g of (6-cyclopropylhexyl)-malonic acid ethyl ester 0.64 g of paraformaldehyde, 4 ml of pyridine and 0.2 ml of piperidine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04430339
Source datasetuspto-grants-1984_02
ORD IDord-3f26fd22f769400da0a6802c1f6adace
Source noteuspto-grants-1984_02