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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 325758Generated: October 30, 2026

Benzaldehyde → Dibenzylamine

https://huagongshe.com/reaction/325758

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzaldehydeHCID 240—
ReactantBenzylamineHCID 7504—
ReactantTriethylamineHCID 8471—
ReactantSodium HydroxideHCID 14798—
ReactantPhosphorous acidHCID 107909—
SolventWaterHCID 962—
ProductDibenzylamineHCID 765698%

Reaction Steps

The imine from benzaldehyde and benzylamine (19.5 g; 0.1 mole) was heated with phosphorous acid (8.2 g; 0.1 mole) and triethylamine (10.1 g; 0.1 mole) for 2 hours at reflux (125°-130°). After cooling to 90° the reaction mixture was diluted with water (50 ml), basified (NaOH) and extracted with chloroform. The extract was concentrated by evaporation of the chloroform and triethylamine to yield dibenzylamine 19.3 g (98% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04442286
Source datasetuspto-grants-1984_04
ORD IDord-275c7b0824a14fd9a2f2fc6043d61885
Source noteuspto-grants-1984_04