Tris(triphenylsiloxy)vanadium Oxide

[18822-50-9] C54H45O4Si3V (MW 893.15) InChI = 1S/3C18H15OSi.O.V/c3*19-20(16-10-4-1-5-11-16,17-12-6-2-7-13-17)18-14-8-3-9-15-18;;/h3*1-15H;;/q3*-1;;+3 InChIKey = WSQFWIWHGOUAEN-UHFFFAOYSA-N (catalyst for isomerization of allylic alcohols and propargylic alcohols with 1,3-oxygen transposition; catalyst for oxidation of alkenes in combination with alkyl hydroperoxide) Alternative Name: tris(triphenylsilyl) vanadate, oxotris(triphenylsilanolato)vanadium. Physical Data: mp 225–227 °C. Solubility: sol acetone; toluene; xylene; dichloromethane; 1,2-dichloroethane. Form Supplied in: not commercially available; white crystal. Preparative Methods: from vanadyl trichloride and triphenylsilanol or vanadium pentoxide and triphenylsilanol.1 Purification: recrystallized from benzene, xylene, or mesitylene. Handling, Storage, and Precautions: slowly hydrolyzes in the presence of moisture. Stable under dry argon atmosphere.