Nucleophilic Reactions of Hydrazido(2-) Complexes of Molybdenum and Tungsten with Succinyl Dichloride and Phenyl Isocyanate

Article abstract of DOI:10.1246/bcsj.54.1773

Nucleophilic attack of the WNNH2 group in the hydrazido(2-) complex (dpe=Ph2PCH2CH2PPh2) on succinyl dichloride gives a novel ethanedioylhydrazido(2-) complex, .X-Ray structural analysis shows that the carbon, nitrogen, and oxygen atoms of the ethanedioylhydrazido(2-) ligand lie nearly in the same plane, indicating sp² character of the nitrogen atom bearing the two carbonyl groups.Phenyl isocyanate also undergoes nucleophilic attack by the hydrazido(2-) complex Br (M=Mo or W) to yield the phenylsemicarbazido(2-) type complex, Br.Treatment of the se micarbazido(2-) complex with triethylamine gives a new diazenido complex .