Synthesis of N-and C-trimethylsilyl-substituded anililes

Synthesis of Tungsten Imido Alkylidene Complexes that Contain an Electron-Withdrawing Imido Ligand

“…W(NAr F )(CHCMe 3 )(OTf) 2 (dme), 6a W(NAr 2,6Me2 )(CHCMe 3 )(OTf) 2 (dme), 18 W(NAr 3,5Me2 )(CHCMe 2 Ph)(OTf) 2 (dme), 19 and W(NAr Cl )(CHCMe 3 )(OTf) 2 (dme) 7b were prepared according to reported procedures. N -Trimethylsilyl-2,4,6-tribromoaniline 20 and N -trimethylsilyl-2,6-dichloro-4-trifluoromethylaniline 21 have been previously reported. All other reagents were used as received unless otherwise noted.…”

“…W(NAr F )-(CHCMe 3 )(OTf) 2 (dme), 6a W(NAr 2,6Me2 )(CHCMe 3 )(OTf) 2 (dme), 18 W(NAr 3,5Me2 )(CHCMe 2 Ph)(OTf) 2 (dme), 19 and W(NAr Cl )-(CHCMe 3 )(OTf) 2 (dme) 7b were prepared according to reported procedures. N-Trimethylsilyl-2,4,6-tribromoaniline 20 N-(Trimethylsilyl)-2, 6-dichloro-4-trifluoromethylaniline. Diethyl ether (200 mL) was placed in a Schlenk flask under nitrogen containing 2,6-dichloro-4-trifluoromethylaniline (14.39 g, 62.6 mmol) and was cooled to −78 °C.…”