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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2102616Generated: October 30, 2026

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

https://huagongshe.com/reaction/2102616

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPotassium CarbonateHCID 11430—
Reactant4-ButylpiperidineHCID 13283867—
Reactant1-(3-chloropropyl)-7-methyl-3,4-dihydro-1H-quinolin-2-oneHCID 17956138—
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)-7-methyl-3,4-dihydro-1H-quinolin-2-one (107LH27-13,1) (0.117 g, 0.49 mmol), 4-butylpiperidine (0.071 g, 0.50 mmol), KI (0.166 g, 1.00 mmol), and K2CO3 (0.138 g, 1.00 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 δ 7.06 (d, J=7.4 Hz, 1H), 6.97 (s, 1H), 6.84 (d. J=7.6 Hz, 1H), 3.97 (t, J=7.4 Hz, CH2), 2.91 (d, J=11.2 Hz, 2H), 2.82 (t, J=6.8 Hz, CH2), 2.57-2.54 (m, 2H), 2.41-2.37 (m, 2H), 2.33 (s, CH3), 1.98-1.92 (m, 2H), 1.87-1.79 (m, 2H), 1.68 (d, J=9.6 Hz, 2H), 1.30-1.17 (m, 9H), 0.89 (t, J=6.8 Hz, CH3); 13C NMR (CD3OD) δ 172.7, 140.1, 138.5, 128.9, 125.1, 124.9, 117.0, 57.0, 55.0, 41.3, 37.3, 36.8, 33.1, 30.1, 25.8, 25.6, 23.9, 21.6, 14.4; HPLC-MS (ammonium acetate) [M+H]+=343.37.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07576078B2
Source datasetuspto-grants-2009_08
ORD IDord-0d24eb9dda634b9aa73a8b4c3cfb6d5e
Source noteuspto-grants-2009_08