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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1153879Generated: October 30, 2026

Water → HCID 70467484, compound

https://huagongshe.com/reaction/1153879

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantTolueneHCID 1140—
ReactantPiperidineHCID 8082—
ReactantVeratraldehydeHCID 8419—
ReactantHCID 20222317HCID 20222317—
ProductHCID 70467484HCID 7046748494.8%

Reaction Steps

A solution of 8.4 g of 3,4-dimethoxybenzaldehyde, 11.4 g of 2-carboxymalonanilic acid, and 4.3 g of piperidine in 50 ml of toluene is heated for 3 hours under reflux with continuous removal of water during the reaction period. After the completion of the reaction, the reaction mixture is cooled and the precipitated crystals are collected by filtration and dried to obtain 19.5 g of piperidinium N-(3,4-dimethoxycinnamoyl)anthranilate (94.8% yield), as confirmed by elemental analysis and spectroscopy.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04486597
Source datasetuspto-grants-1984_12
ORD IDord-a4dc85006a8d42a2bdcb1281a0c1024c
Source noteuspto-grants-1984_12