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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 851141Generated: October 30, 2026

Dimethylformamide → 1-Ethyl-5-(3-methoxyphenyl)-1,2,3,6-tetrahydropyridine

https://huagongshe.com/reaction/851141

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylformamideHCID 6228—
ReactantIodoethaneHCID 6340—
ReactantSodium CarbonateHCID 10340—
Reactant3-(3-Methoxyphenyl)-1,2,5,6-tetrahydropyridine hydrochlorideHCID 13066749—
SolventWaterHCID 962—
Product1-Ethyl-5-(3-methoxyphenyl)-1,2,3,6-tetrahydropyridineHCID 20502630—

Reaction Steps

9.8 g of sodium carbonate and 2.6 ml of ethyl iodide were added to a suspension of 7 g of 3-(3-methoxyphenyl)-1,2,5,6-tetrahydropyridine hydrochloride and 70 ml of dimethylformamide and the mixture was stirred for 16 hours and was diluted with water. The mixture was extracted with ethyl acetate and the organic extract was washed with water, dried and evaporated to dryness under reduced pressure. The residue was chromatographed over silica gel and was eluted with an 8-1-1 cyclohexane-chloroform-triethylamine mixture to obtain 5.3 g of 3-(3-methoxyphenyl)-1-ethyl-1,2,5,6-tetrahydropyridine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04382942
Source datasetuspto-grants-1983_05
ORD IDord-4076ac29e63249169542e3ef4b07f737
Source noteuspto-grants-1983_05