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Elemental F_2 with Transannular Dienes: Regioselectivities and Mechanisms

机译:具有跨环二烯的元素F_2:区域选择性和机理

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Three reaction paths, namely, molecule-induced homolytic, free radical, and electrophilic, were modeled computationally at the MP2 level of ab initio theory and studied experimentally for the reaction of F_2 with the terminal dienes of bicyclo[3.3.1]nonane series. The addition of fluorine is accompanied by transannular cyclization to the adamantane derivatives in which strong evidence for the electrophilic mechanism both in nucleophilic (acetonitrile) and non-nucleophilic (CFCl_3, CHCl_3) solvents were found. The presence of KF in CFCl_3 and CHCl_3 facilitates the addition and substantially reduces the formation of tar products.
机译:从头算理论的MP2水平对分子诱导的均裂,自由基和亲电三个反应路径进行了建模,并对F_2与双环[3.3.1]壬烷系列末端二烯的反应进行了实验研究。氟的添加伴随着环向金刚烷衍生物的环过环化,其中发现了亲核(乙腈)和非亲核(CFCl_3,CHCl_3)溶剂中的亲电机理的有力证据。 CFCl_3和CHCl_3中KF的存在有助于添加,并大大减少了焦油产物的形成。

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