Process for the preparation of cationic dyestuffs

Details Process for the preparation of cationic dyestuffs Process for the preparation of cationic dyestuffs

1980-07-17

1981-07-28

Demers, Arthur P.

Harness for working animal

542419, C07D20914

Patent

active

042811120

ABSTRACT:
The preparation of hydrazone dyestuffs of the formula ##STR1## wherein R.sup.13 and R.sup.14 independently of one another represent hydrogen, C.sub.1 -- to C.sub.4 --alkyl, C.sub.1-- to C.sub.4-- alkoxy or halogen, in particular chlorine or bromine, and

REFERENCES:
patent: 3158608 (1964-11-01), Raug
patent: 3741982 (1973-06-01), Fujino et al.
patent: 3769279 (1973-10-01), Kuhlthau et al.
patent: 3860583 (1975-01-01), Schmitt
patent: 3981869 (1976-09-01), Ziemek
patent: 4026885 (1977-05-01), Frey

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