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Published in 2020 at "Chinese Chemical Letters"
DOI: 10.1016/j.cclet.2020.06.010
Abstract: Abstract An unprecedented chiral secondary amine-catalyzed [3 + 3] annulation of isatin N,N'-cyclic azomethine imines with α,β-unsaturated aldehydes was developed. This strategy allowed the construction of structurally novel spiro N-heterocyclic oxindole derivatives in good yields (up to…
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Keywords:
cyclic azomethine;
isatin cyclic;
azomethine imines;
spiro heterocyclic ... See more keywords