Triethylamine → 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid (3-iodo-6,7,8,9-tetrahydro-5-H-benzocyclohepten-5-yl)-methoxy-amide

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Reaktionsgleichung

[I:1][C:2]1[CH:15]=[CH:14][C:5]2[CH2:6][CH2:7][CH2:8][CH2:9][CH:10]([NH:11][O:12][CH3:13])[C:4]=2[CH:3]=1.C(N(CC)CC)C.[CH3:23][N:24]1[CH:28]=[C:27]([C:29](Cl)=[O:30])[C:26]([C:32](F)([F:34])[F:33])=[N:25]1>ClCCl>[I:1][C:2]1[CH:15]=[CH:14][C:5]2[CH2:6][CH2:7][CH2:8][CH2:9][CH:10]([N:11]([O:12][CH3:13])[C:29]([C:27]3[C:26]([CH:32]([F:34])[F:33])=[N:25][N:24]([CH3:23])[CH:28]=3)=[O:30])[C:4]=2[CH:3]=1

Komponenten

Reaktionsbedingungen

Temperatur: 24 °C

Versuchsvorschrift

To a stirred solution of N-(3-iodo-6,7,8,9-tetrahydro-5-H-benzocyclohepten-5-yl)-O-methyl-hydroxylamine (77 mg; 0.24 mmol), prepared as described in example P3c and triethylamine (0.037 ml; 0.26 mmol) in dichloromethane (1.6 ml) under nitrogen at 4° C. was added dropwise 1-methyl-3-trifluoromethyl-1H-pyrazole-4-carbonyl chloride (47 mg; 0.24 mmol). The reaction mixture was stirred at 24° C. for 3 h under nitrogen. The mixture diluted with dichloromethane (10 ml), washed with 1M sodium hydroxide (1 ml), 1M hydrochloric acid (1 ml) and brine (1 ml). Organics were dried over sodium sulfate. The solvent was removed in vacuo. The crude (190 mg) was subject to flash chromatography (eluant: c-hexane/ethyl acetate 90:10 to 50:50) to afford 0.101 g (88% of theory) of 3-difluoromethyl-1-methyl-1H-pyrazole-4-carboxylic acid (3-iodo-6,7,8,9-tetrahydro-5-H-benzocyclohepten-5-yl)-methoxy-amide as a yellow solid oil.

Aufarbeitung

washwashed with 1M sodium hydroxide (1 ml), 1M hydrochloric acid (1 ml) and brine (1 ml)
dry with materialOrganics were dried over sodium sulfate
customThe solvent was removed in vacuo

Quellen und Nachweise

ORD-Eintrag: ord-9aa86ff200914857a5a46f90941edd68
Quelldatensatz: uspto-grants-2014_02
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08653003B2

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