Exploring Cuneanes as Potential Benzene Isosteres and Energetic Materials: Scope and Mechanistic Investigations into Regioselective Rearrangements from Cubanes
作者:Jeong-Yu Son、Santeri Aikonen、Nathan Morgan、Alexander S. Harmata、Jesse J. Sabatini、Rosario C. Sausa、Edward F. C. Byrd、Daniel H. Ess、Robert S. Paton、Corey R. J. Stephenson
DOI:10.1021/jacs.3c03226
日期:2023.8.2
or redundantly substituted systems such as permethylated, perfluorinated, and bis(hydroxymethylated) cuneanes. Such compounds, particularly rotationally symmetric redundantly substituted cuneanes, have limited potential as building blocks for the synthesis of complex molecules. Reliable, predictable, and selective syntheses of polysubstituted cuneanes bearing more complex substitution patterns would
立方烷是一种应变碳氢化合物,可以通过立方烷的金属催化异构化获得。楔烷的碳原子定义了一个具有六个面的C 2 v点群多面体——两个三角形、两个四边形和两个五边形。楔形骨架的刚性、应变和独特的退出向量使其成为合成功能性小分子和材料的潜在支架。然而,先前对楔烯的合成努力有限,主要集中在单取代或冗余取代的系统,例如全甲基化、全氟化和双(羟甲基化)楔烯。此类化合物,特别是旋转对称的冗余取代的楔烷,作为合成复杂分子的构建单元的潜力有限。具有更复杂取代模式的多取代楔烯的可靠、可预测和选择性合成将有助于该环系统在无数应用中的研究。在此,我们报道了不对称 1,4-二取代古巴烷到古巴烷的区域选择性、Ag I催化异构化。深入的 DFT 计算提供了电荷控制的区域选择性模型,直接动力学模拟表明所调用的非经典碳正离子是短暂的,动态效应增强了电荷模型。