Electrophilic d-zero Metal Alkyl Complexes

亲电 d-0 金属烷基配合物

• 批准号: 9022700
• 负责人: Richard Jordan
• 金额: $ 24.62万
• 依托单位: University of Iowa
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-02-01 至 1994-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9022700&HistoricalAwards=false
• 关键词: Electrophilic; zero; Metal; Alkyl; Complexes

This award is made in the Inorganic, Bioinorganic and Organometallic Chemistry Program to the University of Iowa in support of the research of Richard F. Jordan. The main theme of the research is the synthesis, reaction mechanisms, and catalytic applications of electrophilic metal alkyl complexes. Such complexes are believed to be the active species in commercial Ziegler-Natta olefin polymerization catalysts. Four new areas of research will be probed. (1) The structures and dynamics of agostic zirconium and hafnium alkyl complexes, (2) the mechanisms of insertion and beta-H elimination reactions of cationic complexes with emphasis on ligand structure/reactivity relationships, (3) catalytically productive ligand C-H activation/C-C coupling reactions including stereoselective reactions with chiral catalysts, and (4) the synthesis and chemistry of new electrophilic metal alkyl catalysts incorporating carborane ligands. These studies will provide new insights into the mechanisms of Ziegler-Natta catalysis, new types of C-H activation chemistry and asymmetric catalysis, and new classes of electrophilic metal alkyl complexes for mechanistic studies and synthetic applications.

该奖项是在爱荷华大学的无机，生物有机和有机金属化学计划中颁发的，以支持理查德·乔丹的研究。该研究的主要主题是亲电金属烷基络合物的合成，反应机理和催化应用。 据信这种复合物是商业Ziegler-Natta烯烃聚合催化剂中的活性物种。 将探究四个新的研究领域。 （1）（2）（2）阳离子复合物的插入和β-H消除反应的机制，重点是配体结构/反应性关系，（3）催化有效的c-H活化/C-C偶联反应（4新的亲电金属烷基催化剂的化学，结合了Carborane配体。这些研究将提供有关Ziegler-Natta催化机制，新型C-H激活化学和不对称催化的新型机制的新见解，以及用于机械研究和合成应用的新型亲电金属烷基复合物。