A high-yielding, stereoselective and extraordinarily complexity-generating Petasis 3-component/intramolecular Diels-Alder reaction has been developed. In combination with ROM-RCM, rapid access to complex sp-rich heterocyclic scaffolds amenable to subsequent functionalization and library synthesis is provided.

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http://dx.doi.org/10.1039/c7cc02948aDOI Listing

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