Cyanogenation of benzopyrones and naphthopyrones

Details Cyanogenation of benzopyrones and naphthopyrones Cyanogenation of benzopyrones and naphthopyrones

1982-09-30

1987-01-06

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 12, 544284, 544286, 544333, 544354, 546 48, 546167, 548128, 548129, 548131, 548132, 548133, 548136, 548143, 548144, 548159, 548181, 548217, 548236, 548265, 548266, 548269, 548305, 548327, 548336, 548374, 549 60, 549252, 549280, 549285, 549288, C07D41704

Patent

active

046347798

ABSTRACT:
There are described novel dyes of the formulae ##STR1## in which R.sub.1 and R.sub.2 independently of one another are each hydrogen, unsubstituted or substituted alkyl, cycloalkyl, aralkyl or aryl, and R.sub.1 and R.sub.2 together with the nitrogen atom, and optionally with the inclusion of further hetero atoms, can also form a 5- to 7-membered heterocycle, or one of the radicals R.sub.1 or R.sub.2 can be linked with the carbon atom, in the o-position with respect to the amino group, of the ring A to form a fused-on, saturated, unsubstituted or substituted 5- or 6-membered ring,

REFERENCES:
Advanced Organic Chemistry, Louis F. Fieser and Mary Fieser, (1961) p. 464.
Rappoport, The Chemistry of the Cyano Group, 1970, John Wiley & Sons, New York, pp. 88-91.
Morrison, et al., "Organic Chemistry", Sec. Ed., 1966, Allyn and Bacon, Inc., Boston, pp. 488-489.

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