Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 746868Generated: November 1, 2026

Ethylamine hydrochloride → HCID 22278836, compound

https://huagongshe.com/reaction/746868

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylamine hydrochlorideHCID 11198—
ReactantPotassium HydroxideHCID 14797—
ReactantSodium cyanoborohydrideHCID 5003444—
Reactant1-Benzyl-3,3-dimethylpiperidin-4-oneHCID 9794413—
SolventMethanolHCID 887—
ProductHCID 22278836HCID 22278836—

Reaction Steps

Potassium hydroxide (4.6 g, 83.0 mmol) was added to the stirred solution of ethylamine hydrochloride (6.8 g, 83.0 mmol) in methanol (70 ml) and stirring was continued for 30 min at 30° C. 1-benzyl-3,3-dimethyl-4-piperidone (3.5 g, 16.6 mmol)), was added to the resulting mixture and stirred for 6 hr. Sodium cyanoborohydride (1.0 g, 16.6 mmol) was added to it and reaction mixture was stirred for 15 hr. The reaction mixture was concentrated to dryness, triturated with water, extracted with chloroform, dried (Na2SO4) and concentrated to give 1-benzyl-4-ethylamino-3,3-dimethylpiperidine. Yield 3.8 g (88%), C16H26N2, m/z 247 (M+1), PMR (CDCl3): 0.9 (s, 3H), 1.06 (s, 3H), 1.18-1.38 (m, 5H), 1.64-2.8 (m, 6H), 2.94 (m, 1H), 3.44 (dd, 2H), 7.2 (m, 5H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07393957B2
Source datasetuspto-grants-2008_07
ORD IDord-8a4402bb882740eaa1a11560acae311e
Source noteuspto-grants-2008_07