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- W2397130891 abstract "This chapter deals with the use of ortho directing groups to achieve full regioselectivity in metal-catalysed C(aryl)–C and C(aryl)–X couplings through C–H bond activation, with particular emphasis on their applications in functionalization of organic materials. In the first part of the chapter we highlight the concepts and basic ideas behind a new generation of directing groups aimed to be multifunctional. Remarkable and useful examples are those containing oxidant moieties, those so-called “traceless” directing groups, removed after achieving the proper orientation, and those designed to be incorporated into the final molecule. After these considerations, examples of the most relevant processes developed during the 3–4 last years are presented. We have focused our attention on arylations, alkenylations, alkynilations, carbonylations, oxidations, aminations and amidations of arylic substrates catalysed by palladium, ruthenium, rhodium and copper, because these metals cover more than 90% of the literature published in this subject. Moreover, we have attempted to show the complementary chemical behaviour of these metals, comparing the results of the same type of processes catalysed by different metals. This includes surprising features, such as the meta-orientation shown by copper and palladium in special cases. As a whole, the utility of the directing groups has been firmly established, as well as their synthetic capabilities when different transition metals are used, although it is also clear that much remains to be done." @default.
- W2397130891 created "2016-06-24" @default.
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- W2397130891 date "2013-06-17" @default.
- W2397130891 modified "2023-10-16" @default.
- W2397130891 title "CHAPTER 8. Coordination‐Directed Metallation Strategy for C–H Functionalization" @default.
- W2397130891 doi "https://doi.org/10.1039/9781849737166-00262" @default.
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