Substituted diaminophenols, process for their preparation, and h

Details Substituted diaminophenols, process for their preparation, and h Substituted diaminophenols, process for their preparation, and h

1997-10-03

1999-11-23

Burn, Brian M.

Organic compounds -- part of the class 532-570 series

Organic compounds

Amino nitrogen containing

C07C20938

Patent

active

059903554

ABSTRACT:
Compounds of the formula (I) and their salts with inorganic and organic acids, ##STR1## in which R.sub.1 is a hydrogen atom or a trimethylsilyl group, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 are, independently of each other, a hydrogen atom, a (C.sub.1 -C.sub.4) alkyl group, a hydroxy-(C.sub.2 -C.sub.3) alkyl group, an alkoxy-(C.sub.2 -C.sub.3) group, an amino-(C.sub.2 -C.sub.3) group, or a 2,3-dihydroxypropyl group, and in which R.sub.1, R.sub.2, R.sub.3, R.sub.4 and R.sub.5 are not simultaneously hydrogen atoms, and processes for their preparation and use as hair-coloring agents.

REFERENCES:
patent: 3134721 (1964-05-01), Seemuller et al.
patent: 3184387 (1965-05-01), Seemuller et al.
patent: 3666812 (1972-05-01), Kalopissis et al.
patent: 3738799 (1973-06-01), Kalopissis et al.
patent: 4566875 (1986-01-01), Grollier et al.
patent: 4985955 (1991-01-01), Grollier et al.
patent: 5180397 (1993-01-01), Grollier et al.
patent: 5387718 (1995-02-01), Kohler et al.
patent: 5525123 (1996-06-01), Lorenz et al.

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