Single-Atom Peri-Bridged Arenes and Hetarenes: Carbenic and Silicanionic Processes (Chemistry)

本项目由有机与大分子化学计划资助。各种新的结构类型和新的化学反应正在被研究，包括五配位有机硅化合物、应变桥式芳香化合物和不寻常的类碳化合物和含自由基的有机化合物。主要研究内容包括：(1)新型单原子环桥芳烃及其衍生物的合成和化学性质；(2)-卤代烷基硅烷与亲核试剂的五配位加成-重排-喷射反应的产物、立体化学和反应机理；(3)金属化碳烯的生成和行为。羰基和重氮自由基和(4)羰基捕获和芳香取代和扩展过程涉及共轭消除和加成。

This project is being supported by the Organic and Macromolecular Chemistry Program. A variety of novel structure-types and novel chemical reactions are being investigated which include pentacoordinate organosilicon compounds, strained-bridged aromatic compounds, and unusual carbenoid and radical containing organic compounds. Study is being made of (1) synthesis and the chemistry of novel single-atom peri-bridged arenes and their derivatives, (2) the products, stereochemistry and mechanisms of pentacoordinate addition-rearrangement-ejection reactions of alpha-haloalkylsilanes with nucleophiles, (3) generation and the behavior of metallized carbenes, carbynes and alpha-diazo radicals and (4) carbenic capture and aromatic substitution and expansion processes involving conjugative alpha-elimination and addition.