Dimethylformamide → HCID 73164016, compound

HRID 1884223Notes

Reaction equation

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

Participants

Conditions

Temperature: 5 °C

Procedure

Five hundred miligrams (500 mg) of N-[2-(3,4-dimethoxyphenyl)ethyl]-3-hydroxy-2-(4-methylphenyl)acrylamide (1.47 mmol), 0.11 g (1.47 mmol) of 3-chloropropyne and 5 ml of anhydrous N,N-dimethylformamide were mixed and 64 mg (1.61 mmol) of 60% sodium hydride was added thereto at 0-5° C. The mixture was stirred at 0-10° C. for 30 minutes and then stirred at room temperature. Water was added to the reaction mixture, followed by extracted with ethyl acetate, washed with 5% hydrochrolic acid and saturated brine subsequently, dried over anhydrous magnesium sulfate and concentrated under reduced pressure. The residue was subjected to silica gel chromatography (eluent, hexane:ethyl acetate=1:1) to give 180 mg of N-[2-(3,4-dimethoxyphenyl)ethyl]-3-(2-propynyloxy)-2-(4-methylphenyl)acrylamide (the present compound 1182).

Workup

customat 0-5° C
stirringstirred at room temperature
extractionby extracted with ethyl acetate
washwashed with 5% hydrochrolic acid and saturated brine subsequently
dry with materialdried over anhydrous magnesium sulfate
concentrationconcentrated under reduced pressure

Sources & evidence

ORD record: ord-f786eba2403f41fd889c66147935b3e7
Source dataset: uspto-grants-2004_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06762321B2

Reaction notes

Loading…