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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 648114Generated: October 30, 2026

Benzaldehyde → HCID 12421740, compound

https://huagongshe.com/reaction/648114

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBenzaldehydeHCID 240—
ReactantTriethylamineHCID 8471—
ReactantBoron TrichlorideHCID 25135—
Reactantethyl 4-(methylamino)benzoateHCID 319832—
SolventBenzeneHCID 241—
SolventWaterHCID 962—
SolventDiethyl EtherHCID 3283—
ProductHCID 12421740HCID 1242174069%

Reaction Steps

To a solution of p-ethoxycarbonyl-methylaniline (179 mg) in dry benzene (2 ml), a solution of boron trichloride (129 mg) in dry benzene (2 ml), is added with ice cooling. A solution of benzaldehyde (0.1 ml) and triethylamine (222 mg) in dry benzene (3 ml) is added to the mixture, which is stirred at room temperature for 3 hours. The reaction mixture is mixed with water and shaken with ether. The organic layer is washed with water, dried, and evaporated to remove the solvents. The residue is washed with petroleum ether to give 2-methylamino-5-ethoxycarbonylbenzhydrol (196 mg) as crystals melting at 132° to 135° C. The yield is 69%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04410730
Source datasetuspto-grants-1983_10
ORD IDord-d2a1e5e739e24b089ea7ed5ee42a26b4
Source noteuspto-grants-1983_10