Synthesis, Structure, and Reactivity of Kinetically Stabilized Divalent Organolead Compounds (Plumbylenes)
作者:Naokazu Kano、Kazusato Shibata、Norihiro Tokitoh、Renji Okazaki
DOI:10.1021/om990188z
日期:1999.8.1
Dis; Tbt = 2,4,6-tris[bis(trimethylsilyl)methyl]phenyl, Ttm = 2,4,6-tris[(trimethylsilyl)methyl]phenyl, and Dis = bis(trimethylsilyl)methyl)) were synthesized by taking advantage of kinetic stabilization afforded by bulky substituents and characterized by UV/vis and 207Pb NMR spectroscopy. X-ray structural analysis revealed that plumbylene 7a has a V-shaped, monomeric structure. Reactions of these plumbylenes
二价有机铅化合物(亚铅基;尖端2 Pb(6 ;尖端= 2,4,6-三异丙基苯基)和Tbt(R)Pb(7a,R = Tbt; 7b,R = Ttm; 7c,R =尖端; 7d,R = Dis; Tbt = 2,4,6-三[双(三甲基甲硅烷基)甲基]苯基,Ttm = 2,4,6-三[[三甲基甲硅烷基)甲基]苯基,和Dis =双(三甲基甲硅烷基)甲基))。通过利用大体积取代基提供的动力学稳定性并通过UV / vis和207 Pb NMR光谱进行表征。X射线结构分析表明,亚ylene 7a具有V形单体结构。描述了这些亚苄基与甲基碘,四溴化碳,二苯基二硫化物,二苯基二硒化物和元素硫的反应。通过二溴铅的还原脱溴和四硫代tetra烷的彻底脱硫,开发了一种由四价有机铅化合物合成plum的新方法。