Synthesis and reaction of (η5-pentamethylcyclopentadienyl)-bis(allyl)tantalum(III) complexes; crystal structure of Ta(η5-C5Me5)-(η3-1-phenylallyl)2
作者:Kazushi Mashima、Yoshimichi Yamanaka、Yoshihiko Gohro、Akira Nakamura
DOI:10.1016/0022-328x(93)80413-6
日期:1993.8
We report here the synthesis and X-ray structure of a mononuclear 16-electron (η5-pentamethylcyclopentadienyl)bis(allyl)-tantalum complex, Cp★Ta(η3-PhC3H4)2 (2). Carbonylation of 2 induced the coupling reaction with phenylallyl groups bound to tantalum to give 1,6-diphenyl-1,5-hexadiene and carbonyltantalum complexes. Oxidation of 2 with one-electron oxdidants, DDQ and TCNQ, gave the tantalum(IV) complexes
我们在这里报告的单核的合成和X射线结构16电子(η 5 -五甲基)双(烯丙基)-tantalum复杂中,Cp★的Ta(η 3 -PhC 3 ħ 4)2(2)。2的羰基化诱导与结合到钽的苯基烯丙基的偶联反应,得到1,6-二苯基-1,5-己二烯和羰基钽配合物。用单电子氧化剂DDQ和TCNQ对2进行氧化,得到钽(IV)络合物[Cp★Ta(PhC 3 H 4)2] [氧化剂]。