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Activation of Bis(trimethylsilyl) Peroxide and tert ‐Butyl Hydroperoxide with Oxo and Peroxo Complexes of Vanadium, Molybdenum, and Tungsten for the Sulfoxidation of Thianthrene 5‐Oxide
Author(s) -
Adam Waldemar,
Golsch Dieter,
Sundermeyer Jörg,
Wahl Günter
Publication year - 1996
Publication title -
chemische berichte
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 0009-2940
DOI - 10.1002/cber.19961291006
Subject(s) - chemistry , catalysis , vanadium , molybdenum , peroxide , thianthrene , trimethylsilyl , medicinal chemistry , inorganic chemistry , amine gas treating , oxide , selectivity , stoichiometry , vanadium oxide , hydrogen peroxide , polymer chemistry , organic chemistry
Bis(trimethylsilyl) peroxide (BTSP) and tert ‐butyl hydroperoxide ( t BuOOH) were activated by various oxo and peroxo complexes of molybdenum, tungsten, and vanadium as catalysts for the sulfoxidation of thianthrene 5‐oxide (SSO). A screening of a number of phosphane oxide and amine oxide ligands revealed that BTSP was most efficiently activated by the [MoO 5 (OP t Bu 3 )] complex. The best results for t BuOOH as oxygen source were achieved with the vanadates [VO(OR) 3 ] (R = t Bu, i Pr). Comparative selectivity and rate data for the stoichiometric and catalytic sulfoxidations of SSO mediated by the MoO 5 L complex (L = OP t Bu 3 , OP n Oct 3 , ON n Bu 3 , ON n Oct 3 ) suggest that the bisperoxo metal complex is the active oxygen transfer species.