Benzoyl Peroxide → 5-(4'-(Bromomethyl)(1,1'-biphenyl)-2-yl)-1-trityl-1H-tetraazole

HRID 341382Notizen

Reaktionsgleichung

Reaktionsgleichung von HRID 341382
[C:1]1([C:7]([C:32]2[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=2)([C:26]2[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=2)[N:8]2[C:12]([C:13]3[CH:18]=[CH:17][CH:16]=[CH:15][C:14]=3[C:19]3[CH:24]=[CH:23][C:22]([CH3:25])=[CH:21][CH:20]=3)=[N:11][N:10]=[N:9]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.C1C(=O)N([Br:45])C(=O)C1.C(OOC(=O)C1C=CC=CC=1)(=O)C1C=CC=CC=1>C(Cl)Cl>[Br:45][CH2:25][C:22]1[CH:23]=[CH:24][C:19]([C:14]2[CH:15]=[CH:16][CH:17]=[CH:18][C:13]=2[C:12]2[N:8]([C:7]([C:1]3[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=3)([C:26]3[CH:27]=[CH:28][CH:29]=[CH:30][CH:31]=3)[C:32]3[CH:37]=[CH:36][CH:35]=[CH:34][CH:33]=3)[N:9]=[N:10][N:11]=2)=[CH:20][CH:21]=1

Komponenten

5

Edukt 3

HCID 7187Benzoyl PeroxideHCID 67184N-bromobutanimideHCID 101520195-(4'-Methyl-(1,1'-biphenyl)-2-yl)-1-trityl-1H-tetrazole

Produkt 1

HCID 100534615-(4'-(Bromomethyl)(1,1'-biphenyl)-2-yl)-1-trityl-1H-tetraazole

Reagenzien, Katalysatoren, Lösungsmittel 1

HCID 6344DichloromethaneLösungsmittel

Versuchsvorschrift

To a nitrogen-saturated suspension of N-triphenylmethyl-5-[4′-methylbiphenyl-2-yl]tetrazole (10 g, 20.9 mmol) in DCM was added NBS (3.7 g, 20.9 mmol) and a catalytic amount of benzoyl peroxide (60 mg, 0.24 mmol). The mixture was stirred at reflux for 15 hours. After cooling to room temperature, the precipitate was filtered and the organic solution was concentrated in vacuo. Silica gel chromatography (EtOAc:hexanes) gave the title compound as a white solid. 1H-NMR (400 MHz, DMSO-d6): δ (ppm) 4.61 (s, 2H), 6.80 (d, 6H), 7.01 (d, 2H), 7.24 (d, 2H), 7.28-7.35 (m, 9H), 7.43-7.45 (dd, 1H), 7.50-7.56 (td, 1H), 7.58-7.60 (td, 1H), 7.77-7.79 (dd, 1H).

Aufarbeitung

  1. temperatureat reflux for 15 hours
  2. filtrationthe precipitate was filtered
  3. concentrationthe organic solution was concentrated in vacuo

Quellen und Nachweise

ORD-Eintrag
ord-146487933e8f4d8d95e1b2cfec164e22
Quelldatensatz
uspto-grants-2014_11
Patentnummer
US08895755B2

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