Reaktion #48198

Reaktionsgleichung

4-[(4-benzyloxy-3-chloro-benzyl)-[1,2,4]triazol-4-yl-amino]-benzonitrile

→

4-[(3-Chloro-4-hydroxy-benzyl)-[1,2,4]triazol-4-yl-amino]-benzonitrile

Lösungsmittel

MeOH THF EtOAc

Reaktionsbedingungen

Aufarbeitung

1. 1
   FiltrationThe reaction mixture was filtered through celite
2. 2
   Einengenthe clear colourless filtrate was concentrated under reduced pressure
3. 3
   Temperaturheated
4. 4
   Temperaturto reflux for 5 minutes
5. 5
   FiltrationThe white solid was filtered off
6. 6
   Temperaturafter cooling to room temperature
7. 7
   Sonstigedried under high vacuum

Vorschrift

Palladium on charcoal (50 mg, 10% Pd) was added to a solution of 4-[(4-benzyloxy-3-chloro-benzyl)-[1,2,4]triazol-4-yl-amino]-benzonitrile (CAB02129, 1.04 g, 2.50 mmol) in MeOH/THF/EtOAc (25 mL/25 mL/25 mL). The mixture was stirred under hydrogen atmosphere (balloon) for 18 hours at room temperature. The reaction mixture was filtered through celite and the clear colourless filtrate was concentrated under reduced pressure. The residue was suspended in 2-propanol (20 mL) and heated to reflux for 5 minutes. The white solid was filtered off after cooling to room temperature and dried under high vacuum. Yield: 484 mg (59%). 1H-NMR (400 MHz, d6-DMSO) δ=4.93 (s, 2H), 6.76 (d, J=9.0 Hz, 2H), 6.86 (d, J=8.6 Hz, 1H), 7.02 (dd, J=8.2, 2.0 Hz, 1H), 7.27 (d, J=2.0 Hz, 1H), 7.76 (d, J=9.0 Hz, 2H), 8.77 (s, 2H), 10.29 (s, 1H, —OH). 13C-NMR (100 MHz, d6-DMSO) δ=56.87, 103.55, 114-48, 117.28, 119.73, 120.25, 126.72, 129.19, 130.91, 134.56, 144.02, 152.03, 153.50. LRMS (FAB+): 325.0 (100, [M+H]+).

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