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This account presents the recent contribution of our group to the development of radical methodologies, and their application to the synthesis and the reactivity of nitrogen-containing compounds. The scope of several cascade processes involving sulphur-centred radicals is discussed first, then the synthetic potential of radical additions to C=N bonds mediated by triethylborane and diethylzinc is examined...
Isopropenyl-5-membered-ring acetal or lactone are potential precursors of (±)-botryodiplodin (1). Several pathways, involving 5-exo-trig ring closure onto allylic sulfones, have been investigated. The iodine atom transfer methodology allowed the preparation of the desired skeleton through intramolecular addition of an α-alkoxycarbonyl radical to the double bond of the appropriate allylic ethyl sulfone...
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