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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 267706Generated: October 30, 2026

Benzaldehyde → 1,2-Ethanediamine, N1,N2-bis(phenylmethylene)-

https://huagongshe.com/reaction/267706

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzaldehydeHCID 240—
ReactantEthylenediamineHCID 3301—
SolventTolueneHCID 1140—
Product1,2-Ethanediamine, N1,N2-bis(phenylmethylene)-HCID 66033—

Reaction Steps

A mixture of ethylene diamine (12.02 g; 0.2 mole) and benzaldehyde (42.44 g; 0.4 mole) in toluene (200 ml) was refluxed for 4 hours using a Dean-Stark trap. The toluene was then removed under vacuum. The residual oil crystallized on cooling. The resulting product was dried in a vacuum oven for 24 hours at room temperature and had a melting point of 52°-54°C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03944525
Source datasetuspto-grants-1976_03
ORD IDord-fde66b12a1b146e684f68d754b5618d3
Source noteuspto-grants-1976_03