Pyridine → HCID 86634691, Verbindung

HRID 76061

Reaktionsgleichung

Reaktionsgleichung von HRID 76061
[CH3:1][N:2]1[CH:6]=[CH:5][C:4]([NH2:7])=[N:3]1.B(O)(O)[C:9]1[CH:14]=[CH:13][C:12]([Br:15])=[N:11][CH:10]=1.N1C=CC=CC=1>C([O-])(=O)C.[Cu+2].C([O-])(=O)C.ClCCl>[Br:15][C:12]1[N:11]=[CH:10][C:9]([NH:7][C:4]2[CH:5]=[CH:6][N:2]([CH3:1])[N:3]=2)=[CH:14][CH:13]=1

Komponenten

6

Edukt 3

HCID 1049PyridineHCID 1372541-Methyl-3-aminopyrazoleHCID 27627062-Bromopyridine-5-boronic acid

Produkt 1

HCID 86634691HCID 86634691, Verbindung

Reagenzien, Katalysatoren, Lösungsmittel 2

HCID 8895Cupric acetateKatalysatorHCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a solution of 1-methyl-1H-pyrazol-3-ylamine (0.23 g, 2.3 mmol, 1.0 equiv) and 2-bromopyridyl-5-boronic acid (0.70 g, 3.5 mmol, 1.5 equiv) in 10 Ml dichloromethane was added pyridine (0.43 Ml, 5.4 mmol, 2.4 equiv), copper (II) acetate (0.63 g, 3.5 mmol, 1.5 equiv) and 4 Å molecular sieves. The heterogeneous reaction mixture was allowed to stir vigorously open to air overnight. The reaction was then filtered through Celite, concentrated in vacuo, and purified by silica gel chromatography to afford the title compound: 1H NMR (400 MHz, DMSO-d6) δ ppm 3.80 (s, 3H) 5.84 (s, 1H) 7.45 (d, J=8.59 Hz, 1H) 7.60 (d, J=2.02 Hz, 1H) 7.86 (dd, J=8.59, 3.03 Hz, 1H) 8.41 (d, J=2.78 Hz, 1H) 8.92 (s, 1H); (M+H)+255.1.

Aufarbeitung

  1. filtrationThe reaction was then filtered through Celite
  2. concentrationconcentrated in vacuo
  3. custompurified by silica gel chromatography

Quellen und Nachweise

ORD-Eintrag
ord-8ca3edaf574e4e59b8c46bbb28a0cfc7
Quelldatensatz
uspto-grants-2014_09
Patentnummer
US08835451B2

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