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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 845429Generated: October 26, 2026

Ethanol → HCID 14253320, compound

https://huagongshe.com/reaction/845429

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
Reactant4-(Dimethylamino)BenzaldehydeHCID 7479—
ReactantSodium cyanoborohydrideHCID 5003444—
Reactant4-(5H-Dibenzo[a,d][7]annulen-5-yl)piperidineHCID 13753410—
SolventEthyl AcetateHCID 8857—
ProductHCID 14253320HCID 1425332017.6%

Reaction Steps

1.00 gram (3.47 millimoles) of 4-(5H-dibenzo[a,d]cyclohepten-5-yl)piperidine, 0.52 gram (3.47 millimoles) of p-dimethylaminobenzaldehyde, 0.63 gram (10.0 millimoles) of sodium cyanoborohydride and 10 milliliters of ethanol were stirred together at room temperature for 24 hours. At the end of this period, the mixture was diluted with 150 milliliters of ethyl acetate and the ethyl acetate solution washed successively with two 50 milliliter portions of 15 percent aqueous sodium bisulfite, one 50 milliliter portion of saturated sodium bicarbonate, and one 100 milliliter portion of brine and then dried over magnesium sulfate. The solvent was vaporized from the dried solution in vacuo to obtain a yellow oil. The oil was flash chromatographed on silica gel with 50/50 ethyl acetate/hexane as eluant to obtain 250 milligrams of a colorless oil which crystallized on standing overnight. The product after recrystallization from acetonitrile had a melting point of 163°-165° C. Elemental analyses of the product were as follows:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04758577
Source datasetuspto-grants-1988_07
ORD IDord-f1edbe58273540819f1c3bf4323f6b2a
Source noteuspto-grants-1988_07