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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 980459Generated: October 30, 2026

Formaldehyde → Hydrochloric Acid

https://huagongshe.com/reaction/980459

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
ReactantPyrrolidine, hydrochloride (1:1)HCID 212848—
Reactant1-(4-cyclohexylphenyl)propan-1-oneHCID 1226260—
ReactantHydrogen chloride-ethyl acetateHCID 21866389—
SolventEthyl AcetateHCID 8857—
ProductHydrochloric AcidHCID 313—
Product1-Propanone, 1-(4-cyclohexylphenyl)-2-methyl-3-(1-pyrrolidinyl)-HCID 3024470—

Reaction Steps

A solution of 5.10 g of 4'-cyclohexylpropiophenone in 15 ml of ethyl acetate, 2.50 g of pyrrolidine hydrochloride, 1.30 g of paraformaldehyde and 0.5 ml of 22% hydrogen chloride-ethyl acetate were treated in the same manner as that described for Example 3 to give 3.65 g of hydrochloride of the desired compound, which were recrystallized from a mixture of ethanol and ether as colorless needles, mp 186°-187°.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04638009
Source datasetuspto-grants-1987_01
ORD IDord-caca97d53b1e47b98fccfce1dcdece30
Source noteuspto-grants-1987_01