Substituted benzopyran compounds

Details Substituted benzopyran compounds Substituted benzopyran compounds

1982-09-30

1985-10-15

Hollrah, Glennon H.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

544 12, 544133, 544283, 544287, 544333, 544353, 544367, 546 47, 546196, 546269, 548136, 548138, 548143, 548144, 548150, 548159, 548217, 548326, 548327, 548518, 549284, 549285, 549287, 549289, 549291, 549293, 549294, 549389, 549407, 549399, 549404, 549405, C07D31192

Patent

active

045475792

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 atoms, 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,

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Harnisch, "Chemical Abstracts", vol. 97, 1982, col. 97:40262w.
Claussen, "Chemical Abstracts", vol. 98, 1983, col. 98:225214w.

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