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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 279965Generated: October 30, 2026

Benzene → HCID 178420620, compound

https://huagongshe.com/reaction/279965

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzeneHCID 241—
ReactantWaterHCID 962—
ReactantVanillinHCID 1183—
ReactantPiperidineHCID 8082—
ReactantHCID 20222317HCID 20222317—
ProductHCID 178420620HCID 178420620—

Reaction Steps

A solution of 2.54 g of 4-hydroxy-3-methoxybenzaldehyde, 3.8 g of 2-carboxymalonanilic acid, and 4.29 g of piperidine in 17 ml of benzene is heated for 3 hours under reflux with removal of water of reaction. After completion of the reaction, the reaction mixture is cooled and the precipitated crystals are collected by filtration and dried to obtain 6.34 g of piperidinium N-(4-hydroxy-3-methoxycinnamoyl)anthranilate, mp. 188°-189° C. The compound structure is confirmed by elemental analysis, and by IR and NMR spectroscopy.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04587356
Source datasetuspto-grants-1986_05
ORD IDord-0ec806ee364941769c7d9ffb4a9afac1
Source noteuspto-grants-1986_05