Heteroarylenemethines and polymers prepared therefrom

Details Heteroarylenemethines and polymers prepared therefrom Heteroarylenemethines and polymers prepared therefrom

1990-12-17

1992-08-04

Schofer, Joseph L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

549 53, 549 58, 549 59, 526256, C07D20956, C07D40906, C08F 2806

Patent

active

051360497

ABSTRACT:
The present invention relates to compounds of formula (I): ##STR1## in which A represents the same or different heteroaryl radicals and substituted heteroaryl radicals; B represents dihydroheteroarenediylidene radicals or substituted dihydroheteroarenediylidene radicals or radicals obtainable from these radicals by oxidation on at least one hetero atom; and R' and R" represent the same or different radicals, in particular hydrogen atoms, C.sub.1 - to C.sub.4 -alkyl radicals or radicals A, or cyano radicals, halogen atoms, radicals of the formula --COOR, or --OR, wherein R is a C.sub.1 - to C.sub.4 -alkyl radical, processes for preparing the same and polymers prepared therefrom.

REFERENCES:
patent: 4729851 (1988-03-01), Braunling et al.
A. Ulman and J. Manassen, "Symmetrically and Unsymmetrically Substituted Tetraphenyl-21, 23-Dithiaporphyrins", J. of the Chemical Society, Perkin I, pp. 1066-1069, 1979.

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