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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 973995Generated: October 25, 2026

Sodium borohydride → 4-Acetylaminomethyl-1-ethyl-1,2,3,6-tetrahydropyridine

https://huagongshe.com/reaction/973995

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium borohydrideHCID 4311764—
Reactant4-Acetylaminomethyl-1-ethylpyridinium iodideHCID 19775529—
SolventMethanolHCID 887—
Product4-Acetylaminomethyl-1-ethyl-1,2,3,6-tetrahydropyridineHCID 1502345788.4%

Reaction Conditions

Temperature75 °C

Reaction Steps

Sodium borohydride (21.96 g) was added portionwise to a solution of 4-acetylaminomethyl-1-ethylpyridinium iodide (44.43 g) in methanol (400 ml) below 20° C. and the mixture was stirred at 75° C. for 3 hours. The mixture was evaporated in vacuo and the residue was poured into 0.7N aqueous solution of sodium hydroxide (115 ml). The mixture was extracted with methylene chloride. The extracts were washed with brine, dried over magnesium sulfate and evaporated in vacuo. The residue was purified by vacuum distillation to give 4-acetylaminomethyl-1-ethyl-1,2,3,6-tetrahydropyridine (23.38 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05066680
Source datasetuspto-grants-1991_11
ORD IDord-7cedd8e75b1b44009c1c9af09a299115
Source noteuspto-grants-1991_11