1987
DOI: 10.1002/chin.198701197
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B. L. LITVIN, V. T. KOLESNIKOV

Abstract: Abstract The reactions between the 3‐chloro‐2‐aminonaphthoquinones (I) or the 2,3‐dichloro‐5‐aminonaphthoquinones (V) or (VII) and the 4‐aminotetramethylpiperidine (II) or N‐methylpiperazine afford the corresponding substitution products (III), (IV), (VI), (VIII) or (IX), formations depending on both the structures of the substrates and the reaction conditions.