“…Catalytic cross-dimerization between substituted olefins is a unique and powerful C−C bond formation process with high atom efficiency . There have been numerous reports concerning coupling reactions of substituted olefins with alkynes, conjugated dienes, , reactive olefins such as norbornene/norbornadiene, ,, and styrenes. − However, the coupling partners for cross-dimerization of substituted olefins are still limited so far. , In spite of the recent development of catalytic oxidative coupling reactions, the C−C bond formation reaction between branched substrates is generally difficult and, to the best of our knowledge, diastereoselective cross-dimerization between substituted olefins is unprecedented.…”