Sodium Hydroxide → HCID 14624991, compound

HRID 703447Notes

Reaction equation

Cl[CH2:2][CH2:3][CH:4]1[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[NH:7][C:6](=[O:14])[CH2:5]1.[CH3:15][O:16][C:17]1[CH:26]=[C:25]2[C:20]([CH:21]=[CH:22][CH:23]=[C:24]2[N:27]2[CH2:32][CH2:31][NH:30][CH2:29][CH2:28]2)=[CH:19][CH:18]=1.[OH-].[Na+]>ClCCl>[CH3:15][O:16][C:17]1[CH:26]=[C:25]2[C:20]([CH:21]=[CH:22][CH:23]=[C:24]2[N:27]2[CH2:28][CH2:29][N:30]([CH2:2][CH2:3][CH:4]3[C:13]4[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=4)[NH:7][C:6](=[O:14])[CH2:5]3)[CH2:31][CH2:32]2)=[CH:19][CH:18]=1

Participants

Conditions

Temperature: 130 °C

Procedure

1.5 g (7.15 mmol) of (±)-4-(2-chloroethyl)-3,4-dihydro-2(1H)-quinolinone are mixed intimately with 3.65 g (15 mmol) of 1-(7-methoxy-1-naphthyl)piperazine and the mixture is heated to 130° C. for 1 h while stirring. The cooled residue is taken up between 25 ml of 2N sodium hydroxide and twice 50 ml of dichloromethane. The organic extract is washed with water, dried over magnesium sulphate and concentrated. The residue is purified by elution with a dichloromethane/methanol (95:5) mixture on a silica column. The purified fraction is crystallized in ether and this solid is drained and dried. 2.6 g (87.5%) of (±)-4-{2-[4-(7-methoxy-1-naphthyl)-1-piperazinyl]ethyl}-3,4-dihydro-2(1H)-quinolinone, melting point 177°-178° C., are obtained.

Workup

extractionThe organic extract
washis washed with water
dry with materialdried over magnesium sulphate
concentrationconcentrated
customThe residue is purified by elution with a dichloromethane/methanol (95:5) mixture on a silica column
customThe purified fraction is crystallized in ether
customdried

Sources & evidence

ORD record: ord-99a2bcedfc4a4c248e5482ec2af3d8e0
Source dataset: uspto-grants-1991_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US04983607

Reaction notes

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