Water → methyl (S)-2-propyloxy-3-[3'-(methylamino)biphenyl-4-yl]propanoate

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Reaktionsgleichung

Br[C:2]1[CH:7]=[CH:6][C:5]([CH2:8][C@H:9]([O:14][CH2:15][CH2:16][CH3:17])[C:10]([O:12][CH3:13])=[O:11])=[CH:4][CH:3]=1.[CH3:18][NH:19][C:20]1[CH:25]=[CH:24][CH:23]=[C:22](B2OC(C)(C)C(C)(C)O2)[CH:21]=1.P([O-])([O-])([O-])=O.[K+].[K+].[K+].O>CN(C)C=O.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:15]([O:14][C@@H:9]([CH2:8][C:5]1[CH:6]=[CH:7][C:2]([C:22]2[CH:23]=[CH:24][CH:25]=[C:20]([NH:19][CH3:18])[CH:21]=2)=[CH:3][CH:4]=1)[C:10]([O:12][CH3:13])=[O:11])[CH2:16][CH3:17]

Komponenten

Reaktionsbedingungen

Temperatur: 90 °C

Versuchsvorschrift

38 mg (0.033 mmol) of tetrakis(triphenylphosphine)palladium are added to a solution of 100 mg (0.33 mmol) of methyl (S)-3-(4-bromophenyl)-2-(propyloxy)propionate and 90 mg (0.39 mmol) of methyl[3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl]amine in 1 ml of dimethylformamide. 0.2 ml of a 2M potassium phosphate solution is added and the reaction mixture is stirred at 90° C. for 2 hours. The reaction is halted by the addition of 10 ml of water and then extraction is carried out with ethyl acetate. The organic phases are combined and dried over sodium sulfate. The solvents are evaporated and then the residue is chromatographed on silica gel (heptane/ethyl acetate 80/20). 76 mg of methyl (S)-2-propyloxy-3-[3′-(methylamino)biphenyl-4-yl]propanoate are obtained in the form of an oil. Yield=70%.

Aufarbeitung

extractionextraction
dry with materialdried over sodium sulfate
customThe solvents are evaporated
customthe residue is chromatographed on silica gel (heptane/ethyl acetate 80/20)

Quellen und Nachweise

ORD-Eintrag: ord-916ead7dc75642989bc12958b0f51a81
Quelldatensatz: uspto-grants-2011_07
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07973063B2

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