A silver-catalyzed chemodivergent cyclization of alkyne-tethered aldehydes with aminals to aminomethylated 1H-isochromenes and naphthols is described by tuning the catalyst system and reaction conditions. The reaction exhibits broad substrate generality...
A novel
palladium-catalyzed Oppolzer-type cyclization reaction
aided by the aminomethyl cyclopalladated complex has been developed,
which provides rapid access to functionalized benzofulvenes with excellent
stereoselectivity. The corresponding products can undergo Diels–Alder
reaction with maleimides, providing a series of complex polycyclic
compounds with excellent regio- and stereoselectivities.
A novel palladium-catalyzed cascade annulative aminomethylamination of diene-tethered enynes with aminals is described. This method provides rapid access to functionalized benzofulvenes with excellent chemo- and regioselectivities and 100% atom economy....
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