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The domino reactions of pyridine/isoquinoline, bromoacetonitrile/ethyl bromoacetate and a series of β-nitrostyrenes in the presence of triethylamine afforded novel tri-/disubstituted indolizines and pyrrolo[2,1-a]isoquinolines regioselectively, presumably via substitution-dipole generation-1,3-dipolar cycloaddition-elimination and/or aromatisation sequence. In vitro screening of all the seventeen...
Non-stabilized azomethine ylides, generated in situ from isatin derivatives and l-proline, have been reacted with (E,E)-1,3-bis(arylidene)indan-2-ones as dipolarophiles in a 1,3-dipolar cycloaddition reaction. Novel functionalized dispiroheterocyclic compounds were obtained with low diastereoselectivity and the regiochemical outcome of the cycloaddition reaction was confirmed by single crystal X-ray...
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