Potassium Carbonate → 4-(1H-indol-5-yloxy)-5-(3,4-dimethoxyphenyl)nicotinonitrile

HRID 506168Notes

Reaction equation

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

Participants

Conditions

Temperature: 80 °C

Procedure

A mixture of 4-chloro-5-(3,4-dimethoxyphenyl)nicotinonitrile (120 mg, 0.44 mmol), 5-hydroxyindole (71 mg, 0.53 mmol) and K2CO3 (91 mg, 0.66 mmol) in CH3CN (4.0 mL) was heated at 80° C. for 4 h. After cooling to r.t., the reaction mixture was diluted with water (20 mL) and the precipitate was collected by filtration and washed with ether containing MeOH to give 121 mg (74%) of 5-(3,4-dimethoxyphenyl)-4-(1H-indol-5-yloxy)nicotinonitrile 220 as a tan solid. MS: 372.2; melting range: 192-194° C.

Workup

temperatureAfter cooling to r.t.
filtrationthe precipitate was collected by filtration
washwashed with ether
additioncontaining MeOH

Sources & evidence

ORD record: ord-43f5c823345840059f0cc37161747be1
Source dataset: uspto-grants-2010_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US07781591B2

Reaction notes

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