| abstract |
PROCESS FOR THE SELECTIVE REDUCTION OF 4-HALOGEN IN 2,4DIHALOANILINS. REPLACED 2-HALOANILINS ARE PREPARED FROM 2,4-DICHLOROO 2,4-DIBROMOANILINS REPLACED CORRESPONDINGLY BY SELECTIVELY REDUCING ONE FOR CHLORINE SUBSTITUTE OR SPRAY TO AN AMINO PROTECTED GROUP IN THE PRESENCE OF THE SAME HALOGEN. SELECTIVE REDUCTIONS ARE CARRIED OUT PROTECTING THE AMINO FUNCTION OF ANILINE WITH TWO PROTECTION GROUPS, FOR EXAMPLE, DIACETHANILIDE OR SUCCINIMIDE. |