Functionalized bis(pyrazol-1-yl)methanes by organotin halide on the methine carbon atom and their related reactions
作者:Zhen-Kang Wen、Yun-Fu Xie、Shu-Bin Zhao、Run-Yu Tan、Liang-Fu Tang
DOI:10.1016/j.jorganchem.2008.01.041
日期:2008.4
di(tert-butyl)chlorostannyl}bis(3,5-dimethylpyrazol-1-yl)methane [(t-Bu)2ClSnCH(3,5-Me2Pz)2] and di(tert-butyl)chlorostannyl}bis(3,4,5-trimethylpyrazol-1-yl)methane [(t-Bu)2ClSnCH(3,4,5-Me3Pz)2] are easily prepared by the reaction of the bis(3,5-dimethylpyrazol-1-yl)methide or bis(3,4,5-trimethylpyrazol-1-yl)methide anion with di(tert-butyl)tin dichloride. The molecular structure of [(t-Bu)2ClSnCH(3,5-Me2Pz)2]
已成功进行了有机锡卤化物在次甲基碳原子上对双(吡唑-1-基)甲烷的修饰,并研究了它们的相关反应。可以通过在以下位置选择性裂解Sn–C sp 2 Sn–Csp2键获得双(3,5-二甲基吡唑-1-基)(碘二苯基锡烷基)甲烷[Ph 2 ISnCH(3,5-Me 2 Pz)2 ] 。具有1摩尔比的I 2的双(3,5-二甲基吡唑-1-基)三苯基锡烷基甲烷,而二(叔丁基)氯锡烷基}双(3,5-二甲基吡唑-1-基)甲烷[[ t -Bu )2 ClSnCH(3,5-Me 2 Pz)2 ]和di(tert丁基的氯锡烷基}双(3,4,5-三甲基吡唑-1-基)甲烷[(t -Bu )2 ClSnCH(3,4,5-Me 3 Pz)2 ]很容易通过双的反应制备(3,5-二甲基吡唑-1-基)甲基或双(3,4,5-三甲基吡唑-1-基)甲基阴离子与二氯化叔丁基锡。通过X射线结构分析确定的[(t -Bu )2 ClSnCH(3