Premium
Economical Oxygenation of Olefins and Sulfides Catalyzed by New Molybdenum(VI) Tridentate Schiff Base Complexes: Synthesis and Crystal Structure
Author(s) -
Rezaeifard Abdolreza,
Jafarpour Maasoumeh,
Raissi Heidar,
Alipour Mahboubeh,
StoeckliEvans Helen
Publication year - 2012
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201200079
Subject(s) - chemistry , catalysis , schiff base , hydrogen peroxide , phenol , orthorhombic crystal system , medicinal chemistry , molybdenum , crystal structure , selectivity , base (topology) , polymer chemistry , peroxide , organic chemistry , mathematical analysis , mathematics
Abstract. New cis ‐dioxomolybdenum(VI) complexes (MoO 2 Y x CH 3 OH) were synthesized using MoO 2 (acac) 2 and 2[(1‐hydroxy‐2‐methylpropane‐2‐ylimino)methyl]phenol derivatives as tridentate ONO donor Schiff base ligands (H 2 Y x ). MoY 1 was crystallized in orthorhombic space group Pbca . The epoxidation of olefins using tert ‐butyl hydroperoxide and oxidation of sulfides to the sulfoxides by hydrogen peroxide were efficiently enhanced by the catalytic activity of title Mo VI complexes with excellent selectivity. The high efficiency and relative stability of the catalysts was observed by turnover number and UV/Vis investigations. The electron‐rich and bulky ligands promoted the effectiveness of the catalysts.