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

该项目得到了有机化学和高分子化学项目的支持。人们正在研究各种新的结构类型和新的化学反应，包括五配位有机硅化合物，张力桥联的芳香族化合物，以及不寻常的类卡宾和含有自由基的有机化合物。正在进行的研究包括：(1)新型单原子环桥芳烃及其衍生物的合成和化学；(2)α-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)金属化卡宾的生成和行为；卡宾和α-重氮自由基以及(4)包括共轭α-消除和加成的卡宾捕获和芳香族取代和膨胀过程。

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.