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首页> 外文期刊>Coordination chemistry reviews >Well-defined organo-gallium complexes as Lewis acids for molecular catalysis: Structure-stability-activity relationships
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Well-defined organo-gallium complexes as Lewis acids for molecular catalysis: Structure-stability-activity relationships

机译:定义明确的有机镓络合物作为路易斯酸,用于分子催化:结构-稳定性-活性关系

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摘要

While the coordination chemistry of gallium is very rich, only a few applications of organo-gallium compounds as catalysts for molecular transformations have been reported. Nevertheless, some studies containing both families of X-ray characterized species and their catalytic activity allow the establishment of a structure-activity and a structure-stability relationship. They show that coordination compounds of gallium enable reactions that encroach upon the territory of transition metals. The interest of using specific ligands in gallium catalysis is also becoming clear in classical Lewis acid chemistry. In this review, the physical properties of gallium complexes are analyzed and related to their ability to activate alkynes toward nucleophilic additions, peracetic acid toward olefin epoxidation, and aldehydes toward hetero Diels-Alder reactions.
机译:尽管镓的配位化学非常丰富,但仅报道了有机镓化合物作为分子转化催化剂的少数应用。尽管如此,一些同时包含X射线特征物种及其催化活性的研究允许建立结构活性和结构稳定性关系。他们表明,镓的配位化合物可引起侵蚀过渡金属领域的反应。在经典的路易斯酸化学中,在镓催化中使用特定配体的兴趣也变得清晰起来。在这篇综述中,分析了镓络合物的物理性质,并将其与将炔烃活化为亲核加成物,将过乙酸活化为烯烃环氧化以及将醛活化为杂Diels-Alder反应的能力相关。

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