An unprecedented chemical transformation of 2-(2',6'-dimethylphenylazo)-4-methylphenol has been observed upon its reaction with [Ru(PPh(3))(2)(CO)(2)Cl(2)] whereby the methyl group at the 2' position migrates to the 4' or 6' position.
Reaction of five N-(4-R-phenyl)picolinamides (R = OCH 3 , CH 3 , H, Cl, and NO 2 ) with [Ru(PPh 3 ) 2 (CO) 2 Cl 2 ] in refluxing 2-methoxyethanol in the presence of a base (NEt 3 ) affords two geometrical isomers of a group of complexes (1-R and 2-R), each of which contains an amide ligand coordinated to the metal center as a monoanionic bidentate N,N donor along with two triphenylphosphanes, a carbonyl, and a hydride. Similar reaction of N-(naphthyl)picolinamide with [Ru(PPh 3 ) 2 (CO) 2 Cl 2 ] affords an organometallic complex, 3, in which the amide ligand is coordinated to the metal center, by C-H activation of the naphthyl ring at the 8-position, as a dianionic tridentate N,N,C donor along with two triphenylphosphanes and one carbonyl. Structures of the 1-OCH 3 , 2-CH 3 , and 3 complexes have been determined by X-
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