Reaktion #171021

Reaktionsgleichung

5-(2-(4-chloro-3-methoxyphenyl)propan-2-yl)-1-(4-fluorophenyl)-1H-imidazole-2-thiol

5-bromo-2-(bromomethyl)-1,3-difluorobenzene

potassium carbonate

→

2-(4-bromo-2,6-difluorobenzylthio)-5-(2-(4-chloro-3-methoxyphenyl)propan-2-yl)-1-(4-fluorophenyl)-1H-imidazole

Lösungsmittel

acetone

Reaktionsbedingungen

Aufarbeitung

1. 1
   FiltrationThe mixture was filtered
2. 2
   Einengenthe filtrate was concentrated
3. 3
   Sonstigepurified by chromatography (silica, 0 to 60% EtOAc/Hex)

Vorschrift

A mixture of 5-(2-(4-chloro-3-methoxyphenyl)propan-2-yl)-1-(4-fluorophenyl)-1H-imidazole-2-thiol (1.5 g, 4.0 mmol, 1.0 eq), 5-bromo-2-(bromomethyl)-1,3-difluorobenzene (1.37 g, 4.8 mmol, 1.2 eq) and potassium carbonate (830 mg, 6.0 mmol, 1.5 eq) in acetone (20 mL) was stirred at room temperature overnight. The mixture was filtered and the filtrate was concentrated and purified by chromatography (silica, 0 to 60% EtOAc/Hex) to provide 2-(4-bromo-2,6-difluorobenzylthio)-5-(2-(4-chloro-3-methoxyphenyl)propan-2-yl)-1-(4-fluorophenyl)-1H-imidazole (1.96 g (85%) as a beige solid: 1H NMR (400 MHz, CDCl3) δ 7.56 (s, 1H), 7.27-7.20 (m, 1H), 7.10-7.00 (m, 2H), 6.93-6.82 (m, 2H), 6.51-6.44 (m, 2H), 6.42-6.32 (m, 2H), 4.59 (s, 2H), 3.81-3.76 (m, 3H), 1.55 (d, J=10.3 Hz, 6H).

Quelle