TY - JOUR
T1 - An example of lipophiloselectivity
T2 - The preferred oxidation, in water, of hydrophobic 2-alkanols catalyzed by a cross-linked polyethyleneimine- polyoxometalate catalyst assembly
AU - Haimov, Adina
AU - Neumann, Ronny
PY - 2006/12/13
Y1 - 2006/12/13
N2 - A cross-linked polyethyleneimine polymer containing the [ZnWZn 2(H2O)2(ZnW9O34) 2]12- polyoxometalate was prepared from branched polyethyleneimine (Mw = 600), the polyoxometalate, and a n-octylamine-epichlorohydrin cross-linking reagent. This catalytic assembly was active for the selective oxidation of 2-alkanols to 2-alkanones with aqueous H2O2 with reactions presumably occurring at a hydrophobic domain. Most importantly, the catalyst showed distinctive lipophiloselectivity, that is selectivity as a function of the lipophilic nature of a reaction substrate. The lipophiloselectivity was proportional to the relative partition coefficient (1-octanol/water) of the substrates.
AB - A cross-linked polyethyleneimine polymer containing the [ZnWZn 2(H2O)2(ZnW9O34) 2]12- polyoxometalate was prepared from branched polyethyleneimine (Mw = 600), the polyoxometalate, and a n-octylamine-epichlorohydrin cross-linking reagent. This catalytic assembly was active for the selective oxidation of 2-alkanols to 2-alkanones with aqueous H2O2 with reactions presumably occurring at a hydrophobic domain. Most importantly, the catalyst showed distinctive lipophiloselectivity, that is selectivity as a function of the lipophilic nature of a reaction substrate. The lipophiloselectivity was proportional to the relative partition coefficient (1-octanol/water) of the substrates.
UR - http://www.scopus.com/inward/record.url?scp=33845418313&partnerID=8YFLogxK
U2 - 10.1021/ja064294l
DO - 10.1021/ja064294l
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AN - SCOPUS:33845418313
SN - 0002-7863
VL - 128
SP - 15697
EP - 15700
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 49
ER -