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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1689771Generated: October 31, 2026

Triethylamine → HCID 66906019, compound

https://huagongshe.com/reaction/1689771

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantPiperidin-4-olHCID 79341—
ReactantMethyl 6-chloropyridine-3-carboxylateHCID 254249—
SolventDimethylformamideHCID 6228—
ProductHCID 66906019HCID 6690601986.1%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of methyl 6-chloronicotinate (890 mg, 1.00 equiv; 5.03 mmol) in dry DMF (30 mL) is added 4-hydroxypiperidine (1.5 equiv; 7.55 mmol; 778.95 mg) and triethylamine (1.05 mL; 1.5 equiv; 7.55 mmol). The system is flushed with N2 and heated at 80° C. for 4.5 h. The reaction is allowed to reach room temperature and is diluted with water/EtOAc. The aqueous layer is extracted with ethyl acetate (3×). The organic layer is washed with brine, dried over MgSO4, filtered, and concentrated under reduced pressure. The crude residue is purified via chromatography eluting with hexane/EtOAc 2:1 to 1:2 to yield an orange solid. The solid is triturated with hexane/EtOAc 4:1 and filtered to provide the title compound (1.023 g, 86%) as a white solid. ES/MS m/z 237.0 (M+1)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08153624B2
Source datasetuspto-grants-2012_04
ORD IDord-3a30272c036c4867b45d41ca051aedd3
Source noteuspto-grants-2012_04