The reactions of [Mo(N22(dppe)2], (dppe Ph2PCH2CH2PPh2) with RC6H4NCO (R H, p-CH3, p-Cl) in benzene under irradiation produces [Mo(RC6H4NCO)2(dppe)2] in good yields. Comparison of the infrared data for these complexes, with those previously reported for metal complexes of CO2-like molecules suggest a η2-C,O coordination to the metal.
Diazoalkane complexes of tungsten. Crystal structures of [WBr(N–NCHCH<sub>2</sub>CH<sub>2</sub>CH<sub>2</sub>OH)(dppe)<sub>2</sub>][PF<sub>6</sub>]·0.5EtOH (1) and [WBr(N–NCMe<sub>2</sub>)(dppe)<sub>2</sub>]Br·0.5MeOH (2)
作者:Robert A. Head、Peter B. Hitchcock
DOI:10.1039/dt9800001150
日期:——
Street, Andrew C.; Mizobe, Yasushi; Gotoh, Fumisato, Chemistry Letters, <hi>1991</hi>, # 3, p. 383 - 386
作者:Street, Andrew C.、Mizobe, Yasushi、Gotoh, Fumisato、Mega, Izumi、Oshita, Hiroyuki、Hidai, Masanobu
DOI:——
日期:——
The formation of diazoalkane and diazenido-complexes from the reaction of methyl bromide with trans-bis[1,2-bis(diphenylphosphino)-ethane]bis(dinitrogen)tungsten in various solvents
作者:Joseph Chatt、Robert A. Head、G. Jeffery Leigh
DOI:10.1039/dt9800001129
日期:——
The reaction of trans-[W(N2)2(Ph2PCH2CH2PPh2)2] with MeBr in solvents such as tetrahydrofuran, 2-methyltetrahydrofuran, and tetrahydropyran leads to new diazenido-complexes via a route which is now well understood. These new complexes undergo reversible rings opening with protic acids to yield substituted-diazoalkane complexes. N-Methylpyrrolidine and tetrahydrothiophen similarly form diazenido-derivatives
Diazoalkane complexes and related compounds from reactions of dinitrogen complexes of tungsten and molybdenum with gem-di-bromides, and from condensation of hydrazido(2–)-complexes with aldehydes
new diazoalkane complexes. These do not react with protonic acids, but the unique diazoalkane carbons are attacked by nucleophiles, such as LiMe, to yield diazenido-complexes, some of which cannnot be obtained by conventional means. Other nucleophiles, such as ButO–, cleave the nitrogen–carbon bond. The reactions of trans-[Mo(N2)2(Ph2PCH2CH2PPh2)2] with gem-dibromides are more complex, and diazoalkane