Potassium Carbonate → Ethyl 5-chloro-2''-[(phenylmethyl)oxy]-1,1':2',1''-terphenyl-2-carboxylate

HRID 269565

Reaktionsgleichung

[CH2:1]([O:8][C:9]1[CH:14]=[CH:13][CH:12]=[CH:11][C:10]=1[C:15]1[C:16](B(O)O)=[CH:17][CH:18]=[CH:19][CH:20]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.Br[C:25]1[CH:35]=[C:34]([Cl:36])[CH:33]=[CH:32][C:26]=1[C:27]([O:29][CH2:30][CH3:31])=[O:28].C(=O)([O-])[O-].[K+].[K+].C1(C)C=CC=CC=1.C(O)C>C(OCC)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>[Cl:36][C:34]1[CH:33]=[C:32]([C:16]2[C:15]([C:10]3[CH:11]=[CH:12][CH:13]=[CH:14][C:9]=3[O:8][CH2:1][C:2]3[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=3)=[CH:20][CH:19]=[CH:18][CH:17]=2)[C:26]([C:27]([O:29][CH2:30][CH3:31])=[O:28])=[CH:25][CH:35]=1

Komponenten

Reaktionsbedingungen

Temperatur: 90 °C

Versuchsvorschrift

A mixture of 2′-benzyloxybiphenyl boronic acid (50 mg, 0.16 mmol), ethyl 2-bromo-4-chlorobenzoate (66 mg, 0.25 mmol), potassium carbonate (88 mg, 0.64 mmol) and tetrakis(triphenylphosphine)palladium(0) (10 mg, 5 mol %) in 1:1 toluene/ethanol (2 ml) was stirred and heated at 90° C. under nitrogen for 12 hours. After cooling the mixture was diluted with diethyl ether and water and the organic phase dried (MgSO4) and evaporated to dryness. The residue was chromatographed with ethyl acetate/iso-hexane (1:9) to yield the title compound as a pale yellow gum. (46 mg, 66%).

Aufarbeitung

temperatureAfter cooling the mixture
dry with materialthe organic phase dried (MgSO4)
customevaporated to dryness
customThe residue was chromatographed with ethyl acetate/iso-hexane (1:9)

Quellen und Nachweise

ORD-Eintrag: ord-a36b5c992b014a60a613a74fb93c144b
Quelldatensatz: uspto-grants-2008_11
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US07446222B2

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