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The study of degenerate metathesis reactions is reviewed for heterogeneous and homogeneous early‐metal systems and homogenous late‐metal systems. The mechanistic study of these methylene exchange reactions using a variety of stereochemical and isotopic‐labeling experiments is discussed. While, in a few cases, the primary pathway has not been unambiguously established, the relative rate of degenerate...
Described in this report is an enantioselective route toward the chamigrene natural product family. The key disconnections in our synthetic approach include sequential enantioselective decarboxylative allylation and ring-closing olefin metathesis to form the all-carbon quaternary stereocenter and spirocyclic core present in all members of this class of compounds. The generality of this strategy is...
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