Tetrahedron Letters p. 2953 - 2956 (1993)
Update date:2022-08-28
Topics:
Capdevielle, Patrice
Maumy, Michel
Cu(I)Cl-catalyzed oxidation of indole 1 by dioxygen in anhydrous acetonitrile leads to highly reactive 3-oxo 3H-indole 2, which provides directly 2-dialkylamino 3-oxo 3H-indoles 3 in presence of dialkylamines.Amidines 3, previously difficult to prepare, are potentially useful synthons in the field of heterocyclic chemistry. Key Words: Copper-catalyzed oxidation; dioxygen; indole; 2-dialkylamino 3-oxo 3H-indoles.
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