Gold-catalyzed [5+2] cycloaddition of quinolinium zwitterions and allenamides as an efficient route to fused 1,4-diazepines.
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DOI: 10.1039/c8cc02570c
Abstract: Herein, we demonstrate a new catalytic cycloaddition of quinolinium zwitterions involving a gold-bound allylic cation intermediate. This ligand-free higher-order cycloaddition efficiently affords a variety of fused 1,4-diazepine derivatives in a stereospecific manner at room temperature. read more here.
Keywords: cycloaddition; catalyzed cycloaddition; quinolinium zwitterions; gold catalyzed ... See more keywords