Mechanisms of Organometallic Mediated Additions, Oligomerizations and Polymerizations of Unsaturated Hydrocarbons

有机和高分子化学项目的资助 支持纽约州立大学的约翰·伯奇博士的研究 约克在宾厄姆顿，这是旨在阐明反应 不饱和烃的化学转化机理 主基协同作用介导的碳氢化合物 和过渡金属有机金属化合物。 虽然这项工作的重点 确定逐步反应顺序及其 在这样的过程中，研究的长期目标是 化学动力学的一个重要领域是了解化学 反应可以直接得到最大产率的有用的 以最少的能源和资源消耗生产产品。 从广泛的有机物理学研究开始， 铝反应，该项目将探讨三个基本的 Ziegler-Natta型金属促进的 催化：（1）动力学和立体化学的 过渡金属催化的烯烃的加氢金属化， 乙炔，一个基本的过程，以合成高级 乙烯的烯烃;（2）类似的研究， 这种不饱和烃的碳化方法， 烯烃低聚和聚合的中心 单体;和（3）有机底物的代谢， 过渡族或主族催化剂。 该补助金继续 先前由基金会资助CHE-8308251支持的研究。

This grant in the Organic and Macromolecular Chemistry Program supports research of Dr. John Eisch, State University of New York at Binghamton, which is aimed at elucidating the reaction mechanisms of chemical transformations of unsaturated hydrocarbons mediated by the synergistic action of main-group and transition metal organometallics. Though this work focuses on identifying the step-by-step reaction sequences and their rates in such processes, the long-term goal of research in this area of chemical dynamics is to understand how chemical reactions can be directed to give maximum yields of useful products with a minimum expenditure of energy and resources. Starting from an extensive physical-organic study of organo- aluminum reactions, this project will probe three fundamental and interrelated aspects of Ziegler-Natta-type metal-promoted catalysis: (1) the kinetics and stereochemistry of the transition metal-catalyzed hydrometallation of olefins and acetylenes, a process fundamental to the synthesis of higher olefins from ethylene; (2) an analogous study of the carbometallation of such unsaturated hydrocarbons, a process central to the oligomerization and polymerization of olefin monomers; and (3) the metallation of organic substrates by transition or main-group catalysts. This grant continues research previously supported by Foundation grant CHE-8308251.