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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 849Generated: October 23, 2026

Benzaldehyde → Ethyl 2-benzylideneaminobutyrate

https://huagongshe.com/en/reaction/849

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzaldehydeHCID 240—
ReactantTriethylamineHCID 8471—
ReactantSulfuric acid magnesium salt (1:1)HCID 24083—
ReactantEthyl 2-Aminobutyrate HydrochlorideHCID 12844023—
SolventDichloromethaneHCID 6344—
ProductEthyl 2-benzylideneaminobutyrateHCID 1033102688.9%

Reaction Steps

A solution of the product from step (a) (149.6 g), magnesium sulphate (74.3 g), and triethylamine (246 ml) in dichloromethane (1500 ml) was stirred at room temperature under nitrogen and benzaldehyde (94.9 g, Aldrich) was added dropwise. The mixture was stirred at room temperature for 3 hours then filtered. The filtrate was concentrated, triturated in diethyl ether, filtered and concentrated to yield the desired product as a yellow oil (174 g). 1H NMR consistent with the proposed structure.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05723458
Source datasetuspto-grants-1998_03
ORD IDord-968da5d345074707bd8ae7f036b4987e
Source noteuspto-grants-1998_03