作者:Antonella Heßler、Stefan Kucken、Othmar Stelzer、William S. Sheldrick
DOI:10.1016/s0022-328x(97)00124-1
日期:1998.2
(3a) and Me3Si–N[(CH2)2–P(SiMe3)Me]2 (3c). With C7H8Mo(CO)3 the potentially tridentate P2N hybrid ligands 1a, 1b (L) form kinetically labile complexes fac-Mo(CO)3(L) (4a, 4b). Eight membered chelate complexes cis-Mo(CO)4(L) (4c, 5a) are obtained on reaction of 1b and 2b (L) with C7H8Mo(CO)4, the ligands L acting as P,P-bidentates. The X-ray structure of 4c (space group Pbca) reveals a distorted eight
除氮杂膦酰二氮以外,二伯和二仲双(膦乙基)胺RN [(CH 2)2 –PHR'] 2(R = H,n Bu,p- Tol; R'= H,Ph)(1a – 1c,2a) (1d,1e)可通过在超碱性介质DMSO / KOH中将PH 3或伯膦与双(氯乙基)胺烷基化而获得。1a的顺序P-甲基化和N,P-甲硅烷基化得到H–N [(CH 2)2 –PHMe] 2(2b)以及N-和P-三甲基甲硅烷基衍生物Me 3Si–N – [(CH 2)2 –PHMe] 2(3a)和Me 3 Si–N [(CH 2)2 –P(SiMe 3)Me] 2(3c)。利用C 7 H 8 Mo(CO)3,潜在的三齿P 2 N杂化配体1a,1b(L)形成动力学不稳定的复合物fac -Mo(CO)3(L)(4a,4b)。八元螯合物-顺式-Mo(CO)4(L)(4c,在1b和2b(L)与C 7 H 8 Mo(CO)4反应时获得5a