带有吡啶导向基团的三羰基（芳烃）铬配合物的化学计量 C-H 芳基化反应。
Stoichiometric C-H arylation of tricarbonyl(arene)chromium complexes bearing pyridine directing groups.
机构信息
Department of Chemistry, Imperial College London, London SW7 2AZ, United Kingdom.
出版信息
Dalton Trans. 2013 Apr 28;42(16):5615-8. doi: 10.1039/c3dt50187f.
PMID:23503842
Abstract
Differentially substituted Cr(CO)3-complexed aryl pyridines have been shown to readily undergo stoichiometric palladation and subsequent arylation using boronic acid nucleophiles. The positioning of the aryl substituents has been shown to be key in governing substrate reactivity, whereby sterically congested compounds prevent the geometry required for cyclometallation.
摘要
已经证明，取代不同的 Cr(CO)3-配合的芳基吡啶可以很容易地进行化学计量的钯化，并随后使用硼酸亲核试剂进行芳基化。芳基取代基的定位被证明是控制底物反应性的关键，其中空间位阻大的化合物阻止了所需的环金属化几何形状。
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