Diisopropylethylamine → HCID 67041969, compound

HRID 1405458Notes

Reaction equation

Br[C:2]1[C:3]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)=[N:4][C:5]2[C:10]([N:11]=1)=[CH:9][C:8]([C:12]([O:14][CH3:15])=[O:13])=[CH:7][CH:6]=2.Cl.[Cl:23][C:24]1[CH:25]=[C:26]([CH:30]2[CH2:35][CH2:34][NH:33][CH2:32][CH2:31]2)[CH:27]=[CH:28][CH:29]=1.CCN(C(C)C)C(C)C>CN(C=O)C>[Cl:23][C:24]1[CH:25]=[C:26]([CH:30]2[CH2:35][CH2:34][N:33]([C:2]3[C:3]([C:16]4[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=4)=[N:4][C:5]4[C:10]([N:11]=3)=[CH:9][C:8]([C:12]([O:14][CH3:15])=[O:13])=[CH:7][CH:6]=4)[CH2:32][CH2:31]2)[CH:27]=[CH:28][CH:29]=1

Participants

Conditions

Temperature: 100 °C

Procedure

A solution of methyl 3-bromo-2-phenylquinoxaline-6-carboxylate (150 mg, 0.44 mmol, 1.00 equiv), 4-(3-chlorophenyl)piperidine hydrochloride (204.2 mg, 0.88 mmol, 2.00 equiv), and DIEA (194.8 mg, 1.51 mmol, 5.00 equiv) in DMF (4 mL) was placed in an 8-mL sealed tube and stirred overnight at 100° C. in an oil bath. The reaction was then quenched by the addition of water, then concentrated under vacuum. Purification via silica gel column (ethyl acetate/petroleum ether (1:100)) yielded 143.5 mg (64%) of methyl 3-(4-(3-chlorophenyl)piperidin-1-yl)-2-phenylquinoxaline-6-carboxylate as a yellow solid.

Workup

customsealed tube
customThe reaction was then quenched by the addition of water
concentrationconcentrated under vacuum
customPurification via silica gel column (ethyl acetate/petroleum ether (1:100))

Sources & evidence

ORD record: ord-095188dfd2794a6e88338c9c46cea0f7
Source dataset: uspto-grants-2014_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08916560B2

Reaction notes

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