Reactions of Atomic Carbon and Related High Energy Intermediates

碳原子及相关高能中间体的反应

• 批准号: 8700278
• 负责人: Philip Shevlin
• 金额: $ 17.14万
• 依托单位: Auburn University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1987
• 资助国家: 美国
• 起止时间: 1987-06-01 至 1990-11-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8700278&HistoricalAwards=false
• 关键词: Reactions; Atomic; Carbon; Related; Energy

This grant in the Organic and Macromolecular Chemistry Program supports research by Prof. Philip Shevlin on the chemistry of atomic carbon and related high-energy organic reaction intermediates. Because atomic carbon possesses a large thermodynamic driving force for bond formation, it is a versatilereagent for preparation of selected, highly reactive species suchas carbenes. Thus, this work is useful both as a preparation method for some new high-energy chemical fragments, and for understanding the bonding and reactivity forces in others. In general, experiments are designed to prepare and elucidate thechemistry of monovalent carbon intermediates. Dr. Shevlin's recent work has shown that reaction of arc-generated carbon atomswith tetraflouromethane results in the formation of CF, which is observed to react with alkenes to generate flourocyclopropyl radicals. The products of the reaction of this interesting species with other substrates such as dienes and aromatic compounds will be identified in the coming work. Additional experiments are designed to investigate the chemistry of the other halomethynes and the parent species, CH. Other studies arebuilt around continuing investigations of novel carbenes generated as intermediates in C atom reactions. The reaction of carbon atoms with nitriles will be investigated with the goal of forming cyano- or isocyanocarbenes. The chemistry of aminomethylene will be investigated to determine if it undergoes reactions similar to the nucleophilic addition of hydroxymethylene to carbonyls, followed by hydrogent transfer. Lastly, experiments designed to investigate the reaction of atomic carbon with nonvolatile substrates in solution are planned.

有机和高分子化学项目的资助 支持菲利普舍夫林教授的研究， 原子碳及相关高能有机反应 中间体的 因为碳原子拥有巨大的 热力学驱动力的键形成，它是一个 用于制备选定的高活性 例如卡宾。 因此，这项工作是有用的， 制备 一些新的高能化学碎片的方法， 理解其他物质中的结合力和反应力。 一般来说，实验的目的是准备和阐明 一价碳中间体的制备。 舍夫林医生 最近的研究表明，电弧产生的碳的反应 原子与四氟甲烷的反应导致CF的形成， 这是 观察到与烯烃反应生成氟环丙基 根的 这个有趣的反应的产物 与其他底物如二烯和芳族化合物的物质 化合物将在未来的工作中确定。 额外 实验旨在研究化学的 其他卤代次甲基和亲种CH。 是围绕着对新型卡宾的持续研究而建立的 在碳原子反应中作为中间体生成。 的反应 碳原子与腈将被研究的目标是 形成氰基或异氰基卡宾。 的化学性质 将对氨基亚甲基进行研究，以确定其是否经历 类似于亲核加成的反应 羟基亚甲基转化为羰基，然后进行氢转移。 最后，设计实验来研究 在溶液中具有非挥发性基质的原子碳， 计划好了