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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1198636Generated: October 30, 2026

4-Hydroxybenzaldehyde → HCID 12323413, compound

https://huagongshe.com/reaction/1198636

Reaction equation

Participants

RoleNameHCIDCharge
Reactant4-HydroxybenzaldehydeHCID 126—
ReactantCyclopentanoneHCID 8452—
ProductHCID 12323413HCID 12323413—

Reaction Steps

The procedure was similar to that in Example 4 by reacting 4-hydroxybenzaldehyde with the morpholine enamine of cyclopentanone to give 2-(E)-[(4-hydroxy) benzylidene] cyclopentanone. The melting point of this intermediate compound was determined to be 188°-190° C. A subsequent Mannich reaction yielded the 2-Dimethylaminomethyl-5-(E)-[(4-hydroxy) benzylidene] cyclopentanone hydrochloride. The melting point of the product was determined to be 174°-175° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05281622
Source datasetuspto-grants-1994_01
ORD IDord-6c2e55cc0b4046b3b3586b9fd12646b4
Source noteuspto-grants-1994_01