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.
Honda
Kaoru
K
Department of Chemistry, Graduate School of Natural Science and Technology, Kanazawa University, Kakuma-machi, Kanazawa 920-1192, Japan.
Cho
Jaeheung
J
Matsumoto
Takahiro
T
Roh
Jungyun
J
Furutachi
Hideki
H
Tosha
Takehiko
T
Kubo
Minoru
M
Fujinami
Shuhei
S
Ogura
Takashi
T
Kitagawa
Teizo
T
Suzuki
Masatatsu
M
D006900:Hydroxylation; D008024:Ligands; D009532:Nickel / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010084:Oxidation-Reduction
D008024:Ligands; D009942:Organometallic Compounds; D009532:Nickel