Oxidation reactivity of bis(mu-oxo) dinickel(III) complexes: arene hydroxylation of the supporting ligand.
In the nick(el) of time: Bis(mu-oxo) dinickel(III) complexes 2 (see scheme), generated in the reaction of 1 with H(2)O(2), are capable of hydroxylating the xylyl linker of the supporting ligand to give 3. Kinetic studies reveal that hydroxylation proceeds by electrophilic aromatic substitution. The lower reactivity than the corresponding mu-eta(2):eta(2)-peroxo dicopper(II) complexes can be attributed to unfavorable entropy effects.
Department of Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
Kaoru
K
Honda
Jaeheung
J
Cho
Takahiro
T
Matsumoto
Jungyun
J
Roh
Hideki
H
Furutachi
Takehiko
T
Tosha
Minoru
M
Kubo
Shuhei
S
Fujinami
Takashi
T
Ogura
Teizo
T
Kitagawa
Masatatsu
M
Suzuki
D006900:Hydroxylation; D008024:Ligands; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction
D008024:Ligands; D009942:Organometallic Compounds; D009532:Nickel