Methine compounds and methine dyes

Details Methine compounds and methine dyes Methine compounds and methine dyes

1993-01-14

1994-03-15

Shah, Mukund J.

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

Organic compounds

Pteroyl per se or having -c-, wherein x is chalcogen, bonded...

544209, 544331, 546119, 546175, 548121, 548141, 548142, 548150, 548156, 548159, 548163, 548179, 548183, 548185, 548219, 548254, 548220, C07D48702, C07D, C07D26358, C07D20912

Patent

active

052947092

ABSTRACT:
Methine compounds represented by the following general formula (Ia) or (Ib); ##STR1## wherein CYA represents atoms having a cyanine chromogen structure, MER represents atoms having a merocyanine chromogen structure, L represents a divalent linkage group composed of an atom or atoms containing at least one of a carbon atom, a nitrogen atom, a sulfur atom and an oxygen atom, Het represents a group containing a 5- to 7-membered hetero ring containing at least one nitrogen atom, l.sub.1 represents 1 or 2, l.sub.2 represents 0 or 1, and l.sub.3 represents 1, 2 or 3. Methine dyes using same are also disclosed.

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