Piperidine → 3-[5-(2-Morpholin-4-yl-ethoxy)-1H-indol-2-ylmethylene]-1,3-dihydro-indol-2-one

HRID 49066Notes

Reaction equation

[NH:1]1[C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[CH2:3][C:2]1=[O:10].[N:11]1([CH2:17][CH2:18][O:19][C:20]2[CH:21]=[C:22]3[C:26](=[CH:27][CH:28]=2)[NH:25][C:24]([CH:29]=O)=[CH:23]3)[CH2:16][CH2:15][O:14][CH2:13][CH2:12]1.N1CCCCC1>C(O)C>[N:11]1([CH2:17][CH2:18][O:19][C:20]2[CH:21]=[C:22]3[C:26](=[CH:27][CH:28]=2)[NH:25][C:24]([CH:29]=[C:3]2[C:4]4[C:9](=[CH:8][CH:7]=[CH:6][CH:5]=4)[NH:1][C:2]2=[O:10])=[CH:23]3)[CH2:12][CH2:13][O:14][CH2:15][CH2:16]1

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 2-oxindole (29 mg, 0.22 mmol), 5-(2-morpholin-4-yl-ethoxy)-1H-indole-2-carbaldehyde (60 mg, 0.22 mmol) and piperidine (0.1 mL) in ethanol (1 mL) was heated at 100° C. for 2 hours. The precipitate was collected by vacuum filtration, washed with ethanol and dried to give 81 mg (95%) of the title compound as a yellow solid.

Workup

filtrationThe precipitate was collected by vacuum filtration
washwashed with ethanol
customdried

Sources & evidence

ORD record: ord-6034782cbd2e46a5b16cd29f8b2cc7f1
Source dataset: uspto-grants-2004_03
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06706709B2

Reaction notes

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