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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1018466Generated: November 3, 2026

Water → Ethyl 2-(1,2,3,4-tetrahydroisoquinolin-2-yl)nicotinate

https://huagongshe.com/reaction/1018466

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
Reactant1,2,3,4-Tetrahydroisoquinoline HydrochlorideHCID 2734717—
ReactantEthyl chloronicotinateHCID 2796614—
SolventDimethylformamideHCID 6228—
ProductEthyl 2-(1,2,3,4-tetrahydroisoquinolin-2-yl)nicotinateHCID 18401743—

Reaction Steps

4.0 g (19.4 mmol) of ethyl 2-chloronicotinate, together with 3.2 g (19.4 mmol) of 1,2,3,4-tetrahydroisoquinoline hydrochloride and 5.36 g of potassium carbonate were heated at 110° C. for 3 h in 50 ml of DMF while stirring. Water was then added and the whole was extracted with ether; the ether phase was then washed with ammonium chloride, dried and evaporated. The crude product was purified chromatographically (silica gel/heptane-ethyl acetate 20-1), giving a yield of 4.8 g (87%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06482832B1
Source datasetuspto-grants-2002_11
ORD IDord-eb315b9e43ae48e9a7d087ed41eb5751
Source noteuspto-grants-2002_11