Abstract
The synthesis of a number of 2-anilino- and 2-(benzoylamino)-β-carbolin-3-ones
in good yields by a one-step sequence from the reaction of pyranoindolones
with phenylhydrazine or benzoylhydrazine is described; the observed
good regioselectivity of the reaction is discussed. Full assignment
of all ¹ H and ¹³ C
NMR chemical shifts has been unambiguously achieved.
Key words
benzoylhydrazine -
p -benzylic
coupling - bisnucleophiles - one-pot reaction - phenylhydrazine - pyranoindoles
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