Participation of the alpha,alpha'-diiminopyridine ligand system in reduction of the metal center during alkylation.
The reaction of [[2,6-(i-Pr)(2)PhN=C(Me)](2)(C(5)H(3)N)]MnCl(2) with alkylating agents formed a dinuclear Mn(I) derivative via ligand reductive coupling. In the case of the trivalent Cr analogue, a similar reaction afforded reduction toward Cr(II) but also alkylation at the pyridine ring para position followed by an unprecedented cycloaddition that generated a tricyclic system.
Sugiyama
Hiroyasu
H
Department of Chemistry, University of Ottawa, Ottawa, Ontario K1N 6N5, Canada.
Aharonian
Ghazar
G
Gambarotta
Sandro
S
Yap
Glenn P A
GP
Budzelaar
Peter H M
PH