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A diastereo- and enantioselective synthesis of phthalide-oxindole hybrids including congested adjacent quaternary chiral centers was demonstrated through a Lewis base catalyzed asymmetric allylic alkylation reaction of Morita–Baylis–Hillman carbonates of isatins and 3-cyanophthalides. The various hybrid molecules with two valuable pharmacophores-combined frameworks can be obtained in good to high...
The first tertiary amine-catalyzed allylic alkylation of Reissert products of pyridine derivatives has been demonstrated. This protocol provided an efficient synthetic route for the construction of functionalized 2,2-disubstituted 1,2-dihydropyridines incorporating quaternary carbon centers with good to high regioselectivities and moderate enantioselectivities.
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