Modeling the Hydrodesulfurization Reaction at Nickel. Unusual Reactivity of Dibenzothiophenes Relative to Thiophene and Benzothiophene
作者:David A. Vicic、William D. Jones
DOI:10.1021/ja9905997
日期:1999.8.1
dibenzothiophene are all reversible, and lead to new organometallic complexes when dissolved in hydrocarbon solvent. (dippe)Ni(η2-C,S-dibenzothiophene) (6) converts to four new organometallic species in a unique desulfurization reaction that is believed to proceed via the intermediacy of the late-metal terminal sulfido complex (dippe)NiS (23). Independent synthetic routes to the desulfurization products have also
发现氢化镍二聚体 [(dippe)NiH]2 (1) 在温和条件下与多种有机硫底物反应,导致 C-S 键插入加合物。过渡金属插入噻吩、苯并噻吩和二苯并噻吩的 C-S 键都是可逆的,当溶解在烃溶剂中时会产生新的有机金属配合物。(dippe)Ni(η2-C,S-二苯并噻吩) (6) 在独特的脱硫反应中转化为四种新的有机金属物种,据信该反应是通过后金属末端硫化物配合物 (dippe) NiS (23) 的中介进行的. 脱硫产品的独立合成路线也为各种镍硫配合物的制备提供了一个入口,例如 (dippe)Ni(SH)2、(dippe)2Ni2(μ-H)(μ-S)、[ (dippe)2Ni2(μ-H)(μ-S)][PF6],和 [(dippe)Ni(μ-S)]2,所有这些都在结构上得到了表征。1与4-甲基二苯并噻吩、4,6-二甲基二苯并噻吩、1,9-二甲基二苯并噻吩、噻吨的反应性...