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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 969413Generated: October 29, 2026

Potassium Carbonate → 1-[3-(4-Butylpiperidin-1-yl)propyl]-5-methyl-3,4-dihydro-1H-quinolin-2-one

https://huagongshe.com/reaction/969413

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant4-ButylpiperidineHCID 13283867—
Reactant1-(3-Chloropropyl)-5-methyl-3,4-dihydroquinolin-2(1H)-oneHCID 19027733—
SolventAcetonitrileHCID 6342—
Product1-[3-(4-Butylpiperidin-1-yl)propyl]-5-methyl-3,4-dihydro-1H-quinolin-2-oneHCID 1795617974%

Reaction Steps

A 4 mL vial was charged with 1-(3-chloropropyl)-5-methyl-3,4-dihydro-1H-quinolin-2-one (107LH27-11,3) (0.057 g, 0.24 mmol), 4-butylpiperidine (0.042 g, 0.30 mmol), KI (0.083 g, 0.50 mmol), and K2CO3 (0.069 g, 0.50 mmol) in MeCN and shaken at 50°. The reaction mixture was quenched with water, and the product extracted into EtOAc. The combined organic layers were dried over Na2SO4, filtered, and concentrated. The product was purified by flash CC (SiO2; EtOAc, MeOH/EtOAc 1:4) to give the title compound (107LH28) (0.060 g, 74%). 1H NMR (CD3OD) δ 7.15 (t, J=8.0 Hz, 1H), 7.03 (d, J=8.2 Hz, 1H), 6.92 (d, J=7.4 Hz), 4.00 (t, J=7.2 Hz, CH2), 3.10 (d, J=12.1 Hz, 2H), 2.87-2.83 (m, 2H), 2.66-2.62 (m, 2H) 2.59-2.55 (m, 2H), 2.31-2.25 (m, 2H), 2.29 (s, CH3), 1.93-1.87 (m, 2H), 1.76 (d, J=11.7 Hz, 2H), 1.31-1.24 (m, 9H), 0.90 (t, J=6.8 Hz, CH3); 13C NMR (CD3OD) δ 172.7, 140.2, 137.0, 128.1, 126.6, 126.5, 114.5, 56.5, 54.6, 41.2, 37.0, 36.0, 32.2, 32.2, 30.0, 25.0, 23.9, 22.4, 19.7, 14.4; HPLC-MS (ammonium acetate) [M+H+]=343.36.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07307075B2
Source datasetuspto-grants-2007_12
ORD IDord-64fe31ff0ebf4b0faef1f7da036b7b3c
Source noteuspto-grants-2007_12