Azo dyestuffs containing phenolic coupling group

Details Azo dyestuffs containing phenolic coupling group Azo dyestuffs containing phenolic coupling group

1978-12-28

1981-03-31

Niebling, John F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260207, C07C10706, C09B 2912

Patent

active

042592372

ABSTRACT:
Azo dyestuffs of the formula ##STR1## wherein R.sub.1 represents hydrogen or in some cases alkyl, aralkyl, aryl or cycloalkyl,

REFERENCES:
patent: 3951591 (1976-04-01), Birke et al.
patent: 3962209 (1976-06-01), Gotteschlich et al.
patent: 4046757 (1977-09-01), Meybeck et al.
patent: 4053465 (1977-10-01), Kruckenberg
patent: 4125655 (1978-08-01), Gottschlich et al.
patent: 4134887 (1979-01-01), Fuchs et al.
patent: 4148791 (1979-04-01), Altermatt
patent: 4153599 (1979-05-01), Rosati

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