Azo dimers containing the hexafluoroisopropylidene group
AssigneeHoechst Celanese Corporation
InventorsJames R. Hazen, William R. Lee
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Abstract
The invention is directed toward compounds having the formula: ##STR1## wherein A is a substituent independently selected from the group consisting of lower alkyl having from 1 to 3 carbon atoms, chloro or fluoro; n is an integer independently selected from 0 to 2; and X is a halogen selected from the group consisting of chloro and fluoro. Compounds of this invention are useful as intermediates in the preparation of the corresponding diamine compounds resulting from the reductive cleavage of the azo linkage. They may also be used to prepare dyestuffs and photosensitive materials.
Claims4
A compound of the following structure:
- ##STR5## wherein:
- A is a substitutent independently selected from the group consisting of lower alkyl having from 1 to 3 carbon atoms, chloro or fluoro;
- n is an integer independently selected from 0 to 2;
- and X is a halogen selected from the group consisting of chloro and fluoro.
Dependencies are inferred from the claim text.