Diaminotetrafluoroethoxybenzenes

Details Diaminotetrafluoroethoxybenzenes Diaminotetrafluoroethoxybenzenes

1988-03-16

1989-07-04

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

8410, 8411, 8416, C07C 8758

Patent

active

048452947

ABSTRACT:
Tetrafluoroethoxybenzenes, and their acid addition salts, of the general formula: ##STR1## in which R.sup.1 may represent hydrogen or an alkyl having from 1 to 4 carbon atoms and R.sup.2, R.sup.3 and R.sup.4 represent one or more of the same or different substituents selected from hydrogen, an alkyl having 1 to 4 carbon atoms or mono- or dihydroxylalkyls having 1 to 4 carbon atoms, provided that the amino groups are situated relative to one another in an ortho- or meta- position and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 do not simultaneously represent hydrogen when the amino groups are arranged in a 2,4- position. The compounds of the invention, along with 2,4-diaminotetrafluoroethoxybenzene, are useful as coupler components in oxidative hair coloring agents. A process for making the compounds, as well as a separate process for making the mono-N-.beta.-hydroxylethyl compounds, is provided.

REFERENCES:
patent: 3957424 (1976-05-01), Zeffren et al.
patent: 4125367 (1978-11-01), Bugart et al.
patent: 4171203 (1979-10-01), Rose et al.
patent: 4543425 (1985-09-01), Konrad et al.
patent: 4555518 (1985-11-01), Rainer

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