Dimethylformamide → HCID 69899952, compound

HRID 1884224Notes

Reaction equation

[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH2:11][CH2:12][NH:13][C:14](=[O:28])[C:15]([C:18]2[CH:27]=[CH:26][C:25]3[CH2:24][CH2:23][CH2:22][CH2:21][C:20]=3[CH:19]=2)=[CH:16][OH:17])[CH:6]=[CH:7][C:8]=1[O:9][CH3:10].CN(C)C=O.Br[CH2:35][F:36].[H-].[Na+]>O>[CH3:1][O:2][C:3]1[CH:4]=[C:5]([CH2:11][CH2:12][NH:13][C:14](=[O:28])[C:15]([C:18]2[CH:27]=[CH:26][C:25]3[CH2:24][CH2:23][CH2:22][CH2:21][C:20]=3[CH:19]=2)=[CH:16][O:17][CH2:35][F:36])[CH:6]=[CH:7][C:8]=1[O:9][CH3:10]

Participants

Conditions

Temperature: -15 °C

Procedure

0.76 g (2.0 mmol) of N-[2-(3,4-dimethoxyphenyl)ethyl]-3-hydroxy-2-(5,6,7,8-tetrahydronaphthalen-2-yl)acrylamide and 8ml of anhydrous N,N-dimethylformamide were mixed and 0.5 ml of bromofluoromethane was added thereto at −15° C. 88 mg (2.2 mmol) of 60% sodium hydride was added and stirred at −15° C. for 30 minutes and then stirred at approximately 0° C. for 1.5 hours. 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 preparative thin layer chromatography (eluent, hexane:ethyl acetate=1:1) to give 0.68 g of N-[2-(3,4-dimethoxyphenyl)ethyl]-3-fluoromethoxy-2-(5,6,7,8-tetrahydronaphthalen-2-yl)acrylamide(the present compound 1103).

Workup

customat −15° C
stirringstirred at approximately 0° C. for 1.5 hours
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-480b2749c7d544d393bc9a49f5ea59bc
Source dataset: uspto-grants-2004_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US06762321B2

Reaction notes

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