Disperse dyestuffs

Details Disperse dyestuffs Disperse dyestuffs

1976-03-22

1978-01-10

Shaver, Paul F.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

548301, 548347, 260269, 260283R, 260288R, 260289R, 260290R, 260290H, 26029351, 26029354, 26029357, 26029359, 26029372, 544106, 8 76, 8 83, C09B 302

Patent

active

040678890

ABSTRACT:
Dyestuffs of the formula (I) ##STR1## wherein F represents a ring system with at least 3 rings which are angularly condensed with one another, n is 1, 2 or 3, and R, R.sub.1 and R.sub.2 represent optionally substituted alkyl groups which can be interrupted by heteroatoms and also represent cycloalkyl, aralkyl, aryl or heterocyclic radicals, R and R.sub.1 can also represent hydrogen atoms, R.sub.1 and R.sub.2, together with the nitrogen atom, are able to form a ring with 5 or 6 members, and R and R.sub.2 can combine to form a nitrogen-containing heterocycle.

REFERENCES:
patent: 1628280 (1927-05-01), Schmidt et al.
patent: 2821533 (1958-01-01), Tsang
patent: 3987026 (1976-10-01), Koller et al.

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