Abstract:
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The gold(I)-catalyzed retro-Buchner (decarbenation, retrocyclopropanation)
reaction of 7-substituted cycloheptatrienes has
emerged as a safe and powerful alternative for the generation
of gold(I) carbenes. These carbenes can cyclopropanate alkenes,
take part in intramolecular reactions, or engage in higher
cycloadditions with different partners, giving rise to a wide
range of relevant structures. This review covers the developments
made on the generation of gold(I) carbenes via
decarbenation reactions, and the applications of these reactions
in organic synthesis. |