Réaction #1519098

Équation de réaction

Isatin

sodium hydride

4-(3-bromophenyl)phenol benzyl ether

→

N-[3-(4-benzyloxyphenyl)phenyl]isatin

Solvants

DMF

Conditions de réaction

Traitement

1. 1
   TempératureThe reaction was heated in an oil-bath at 140° C
2. 2
   workup.WAITAfter ˜16 hours
3. 3
   Températurethe reaction was cooled to room temperature
4. 4
   Concentrationconcentrated under reduced pressure
5. 5
   workup.DISSOLUTIONThe residue was dissolved in ethyl acetate (˜75 mL)
6. 6
   Filtrationfiltered
7. 7
   ConcentrationThe filtrate was concentrated under reduced pressure
8. 8
   Autreto afford a sticky, brown solid which
9. 9
   Autrewas purified by preparative TLC on silica gel using 25% ethyl acetate in hexanes as the developing solvent

Mode opératoire

Isatin (0.12 g, 0.81 mmoles) in anhydrous DMF (30 mL) was cooled in an ice bath under nitrogen and treated with sodium hydride (21 mg, 1.1 equivalents). The reaction was stirred in ice for 0.5 hour and then warmed to room temperature. This solution was then treated with 4-(3-bromophenyl)phenol benzyl ether (Hajduk, et al., J. Am. Chem. Soc., 1997, 119, pp. 5818-5827), (0.16 g, 0.47 mmoles) followed by copper iodide (0.32 g, 1.68 mmoles). The reaction was heated in an oil-bath at 140° C. After ˜16 hours, the reaction was cooled to room temperature and concentrated under reduced pressure. The residue was dissolved in ethyl acetate (˜75 mL) and filtered. The filtrate was concentrated under reduced pressure to afford a sticky, brown solid which was purified by preparative TLC on silica gel using 25% ethyl acetate in hexanes as the developing solvent. Rf (product)=0.38. Yield=47 mg (25%); MALDI-TOF MS 407.02 obs. (405.5 calc.); 1H-NMR (CDCl3) 5.12 (s, 2H), 6.95 (d, 1H, J=8 Hz), 7.06 (d, 2H, J=8.8 Hz), 7.18 (t, 1H, J=7.5 Hz), 7.33-7.47 (m, 7H), 7.53 (d, 2H, J=8.8 Hz), 7.57-7.60 (m, 2H), 7.71 (d, 1H, J=7.5 Hz).

Source