Abstract:The metalloradical activation of o-aryl aldehydes with cobalt(II) porphyrin complexes as catalysts produces cobalt(III)-carbene radical intermediates, providing a novel and powerful strategy for the synthesis of medium-sized ring structures. Herein we make use of the intrinsic radical-type reactivity of cobalt(III)-carbene radical intermediates in the [Co<sup>II</sup>(TPP)]-catalyzed (TPP = tetraphenylporphyrin) synthesis of two types of 8 membered ring compounds; novel dibenzocyclooctenes and uniq… Show more
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