Palladium/norbornene-catalyzed Distal Alkenyl C-H Arylation and Alkylation of Cis-olefins
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In this full article, a detailed study of a distal alkenyl C-H arylation and alkylation through the palladium/norbornene (NBE) cooperative catalysis is described. Both aminopyridine- and oxime ether-type directing groups have been found effective for this transformation, allowing functionalization of diverse allyl amines and homoallyl alcohols. In addition, the C5,C6-substititued NBEs show optimal reactivity and selectivity. Various cis-olefins can be transformed to the corresponding arylated or alkylated trisubstituted alkenes with excellent regio- and stereoselectivity. Preliminary mechanistic studies support the Catellani pathway instead of the Heck pathway.
Wu Z, Dong G Angew Chem Int Ed Engl. 2022; 61(17):e202201239.
PMID: 35199445 PMC: 9007888. DOI: 10.1002/anie.202201239.