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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 382361Generated: October 25, 2026

Benzaldehyde → 4-Benzylideneamino-5-imidazolecarboxamide

https://huagongshe.com/reaction/382361

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzaldehydeHCID 240—
ReactantWaterHCID 962—
ReactantTriethylamineHCID 8471—
Reactant5-Aminoimidazole-4-carboxamide hydrochlorideHCID 66146—
SolventEthanolHCID 702—
Product4-Benzylideneamino-5-imidazolecarboxamideHCID 5397044697.1%

Reaction Conditions

Temperature0 °C

Reaction Steps

16.3 g (100 mmol) of 4-amino-5-imidazolecarboxamide hydrochloride was suspended in 200 ml ethanol, and 27.8 ml (200 mmol) of triethylamine was added to the suspension and dissolved. To the solution, 10.2 ml (100 mmol) of benzaldehyde was added and the mixture was heated for 8 hours while refluxing. After the addition of 400 ml of distilled water, the reaction mixture was stirred for one hour at 0° C. A solid precipitate produced was collected by filtration, washed with distilled water, then with ethanol, and dried under reduced pressure to obtain 20.8 g of the title compound (yield 97%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06310070B1
Source datasetuspto-grants-2001_10
ORD IDord-de6431ae773b4bcd9b792e1bd6fcfc05
Source noteuspto-grants-2001_10