作者:Rainer Vollmerhaus、Robert Tomaszewski、Pengcheng Shao、Nicholas J. Taylor、Kevin J. Wiacek、Stewart P. Lewis、Abdulaziz Al-Humydi、Scott Collins
DOI:10.1021/om0492350
日期:2005.2.1
iminophosphonamide (PN2) ligands (2a−f), the corresponding hydrochloride salts (1a−c), and a number of bis(PN2) dichloride complexes of group 4 (3a−e) and their corresponding dialkyls (5a−e) are described. A novel monosubstituted PN2 “ate” complex 4 was prepared from ligand 2f and Zr(NMe2)4 on treatment with excess Me2NH·HCl. Piano-stool PN2 zirconium dichloride complexes 6a−h were accessible on treatment of CpZr(NMe2)3
各种亚氨基膦酰胺(PN 2)配体(2a - f),相应的盐酸盐(1a - c)和许多第4组(3a - e)的双(PN 2)二氯化物络合物及其相应化合物的合成描述了二烷基(5a - e)。通过用过量的Me 2 NH·HCl处理,由配体2f和Zr(NMe 2)4制备新颖的单取代PN 2 “酸酯”配合物4。钢琴凳PN 2二氯化锆配合物图6a - ħ是治疗CpZr(NME的访问2)3(CP = C 5 H ^ 5中,Cp *)与PN 2个配体2A - ë,随后用过量我复分解3的SiCl或Me 2 NH·HCl的(图6a - g)或在低T下用HCl乙醚溶液(6h)。烷基衍生物8A - ħ可从制备6A - ħ从配体或直接2和CpMMe 3(CP = C 5 ħ5,Cp *;M = Ti或Zr)。中间体Cp(PN 2)Zr(NMe 2)2(6h的前体)在室温下重排至新型末端二氟配合物7a,b。各种配合物