Abstract EN:

Sustainable development now plays an increasingly important role in the strategy of chemical industries. As a part of these preoccupations, the search for more economic and more eco-friendly new efficient synthetic methods is of vital concern. The development of iron- and cobalt-catalyzed cross-coupling reactions is one of the current promising fields of research since these reactions are very attractive compared to the related palladium- or nickel-catalyzed procedures extensively used until now. Several new coupling procedures were described in this thesis. - The iron-catalyzed reaction between aryl Grignard reagents and alkyl halides. - The cobalt-catalyzed reaction between aryl or alkyl Grignard reagents and alkyl halides. - The iron-catalyzed oxidative heterocoupling between dialkylzinc and diarylzinc compounds The last reaction paves the way to a new class of coupling reactions between two organometallics.