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Catalytic Synergism in a C 60 IL 10 TEMPO 2 Hybrid in the Efficient Oxidation of Alcohols
Author(s) -
Beejapur Hazi Ahmad,
Campisciano Vincenzo,
Giacalone Francesco,
Gruttadauria Michelangelo
Publication year - 2015
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.201400641
Subject(s) - chemistry , catalysis , bromide , radical , adsorption , phase (matter) , alcohol oxidation , covalent bond , combinatorial chemistry , organic chemistry , polymer chemistry
A novel fullerene [5:1]hexakisadduct bearing two 2,2,6,6‐tetramethylpiperidine 1‐oxyl (TEMPO) radicals and ten 1‐propyl‐3‐methylimidazolium bromide moieties has been synthesized and characterized. Such an C 60 IL 10 TEMPO 2 hybrid has been successfully employed as a catalyst in the selective oxidation of a wide series of alcohols and is highly active at just 0.1 mol% loading. Moreover, it can be easily recovered by adsorption onto a multi‐layered covalently‐linked SILP phase (mlc‐SILP) through a “release and catch” approach and reused for up to 12 cycles without loss in efficiency. Interestingly, a catalytic synergistic effect of TEMPO and imidazolium bromide moieties combined in the same hybrid has been clearly shown.