2,2'-Bipyridine → 3-[1-(3-hydroxyphenyl)-1H-1,2,3-triazol-4-yl]phenol

HRID 340853

Reaktionsgleichung

C[Si](C)(C)[C:3]#[C:4][C:5]1[CH:6]=[C:7]([OH:11])[CH:8]=[CH:9][CH:10]=1.[N:14]([C:17]1[CH:18]=[C:19]([OH:23])[CH:20]=[CH:21][CH:22]=1)=[N+:15]=[N-:16].N1C=CC=CC=1C1C=CC=CN=1>CN(C=O)C.CCOC(C)=O>[OH:23][C:19]1[CH:18]=[C:17]([N:14]2[CH:3]=[C:4]([C:5]3[CH:10]=[CH:9][CH:8]=[C:7]([OH:11])[CH:6]=3)[N:16]=[N:15]2)[CH:22]=[CH:21][CH:20]=1

Komponenten

Reaktionsbedingungen

Temperatur: 80 °C

Versuchsvorschrift

To 3-TMSE-phenol (4.0 g, 21.02 mmol) in 35 mL of DMF were added 3-azidophenol (3.41 g, 25.2 mmol), CuBr (153 mg, 1.05 mmol), and 2,2′-bipyridyl (328 mg, 2.10 mmol). The mixture was heated at 80° C. for 24 h, cooled to room temperature, then diluted with 250 mL of EtOAc. The combined organic mixture washed with water, and dried over MgSO4. Solvents were removed by rotary evaporation, and the residue was recrystallized in acetic acid/water to give 3.70 g (70% yield) of a brown crystalline solid. 1H NMR (MeOD-d4, 300 MHz, ppm): 8.80 (s, 1H, triazol-H), 7.43-7.26 (m, 6H, Ar—H), 6.95-6.91 (m, 1H, Ar—H), 6.84-6.83 (m, 1H, Ar—H). 13C NMR (MeOD-d4, 75 MHz, ppm): 158.6, 157.7, 148.1, 137.9, 131.1, 130.4, 129.7, 118.8, 116.7, 115.6, 115.1, 112.1, 110.7, 107.1.

Aufarbeitung

temperaturecooled to room temperature
washThe combined organic mixture washed with water
dry with materialdried over MgSO4
customSolvents were removed by rotary evaporation
customthe residue was recrystallized in acetic acid/water

Quellen und Nachweise

ORD-Eintrag: ord-80c982d2787b48b6a578d815f090cc87
Quelldatensatz: uspto-grants-2014_11
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08895688B2

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