Carbodiimide metal complexes and four-membered metallacycles from isocyanide metal precursors and aryl azides

作者: H Werner , G Hörlin , N Mahr

DOI: 10.1016/S0022-328X(97)00520-2

关键词:

摘要: The reaction of C 5 H Co(CNR)(PMe 3 ) (R=CH 2 Ph, 6 11 with aryl azides ArN leads to a mixture products the carbodiimide complexes Co( κ - , N -RNCNAr)(PMe ( 4 and four-membered metallacycles Co[ -C(NR)N(Ar)C(NR)](PMe being dominating species. For R=C Ar=C an equilibrium between isomer -C(NAr)N(R)C(NR)](PMe 7 has been confirmed by NMR spectroscopy. Treatment Rh(CNMe)(PMe affords exclusively Rh( -MeNCNAr)(PMe 9 10 in good yields. Methylation CF SO Me, presence NH PF gives cyclic carbene-type derivatives 12 which first characterized X-ray crystal structure analysis.

参考文章(27)
David W. Macomber, Robin D. Rogers, The formation and molecular structure of (η5-C5H5)Rh(CO) [C(NMe)CH2CH2(NMe)] Journal of Organometallic Chemistry. ,vol. 308, pp. 353- 360 ,(1986) , 10.1016/S0022-328X(00)99734-1
H. Werner, U. Brekau, M. Dziallas, Vinyliden-Übergangsmetallkomplexe Journal of Organometallic Chemistry. ,vol. 406, pp. 237- 260 ,(1991) , 10.1016/0022-328X(91)83190-F
Victor Riera, Javiex Ruiz, Antonio Tiripicchio, Marisa Tiripicchio Camellini, Synthesis of coordinated carbon monoxide from isocyanide iron(II) compounds. Crystal structure of [Fe(dppe)(CO)(CN-p-tol)(p-tolNCN-p-tolC;N-p-tol)] Journal of Organometallic Chemistry. ,vol. 327, ,(1987) , 10.1016/0022-328X(87)80236-X
Gerhard Hoerlin, Norbert Mahr, Helmut Werner, Reactions of (isocyanide)cobalt complexes with azides : a template synthesis of carbodiimides on a transition-metal center Organometallics. ,vol. 12, pp. 1775- 1779 ,(1993) , 10.1021/OM00029A038