Squarylium compounds and optical information recording medium us

Details Squarylium compounds and optical information recording medium us Squarylium compounds and optical information recording medium us

1991-05-01

1992-09-22

Lee, Mary C.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548150, 548151, 548430, 548511, C07D27760, C07D51302, C07D49102, C07D20904

Patent

active

051498197

ABSTRACT:
Squarylium compounds having the following formula (I), ##STR1## and an optical information recording medium comprising a substrate, and a recording layer formed on the substrate, comprising a squarylium compound having formula (II) are disclosed: ##STR2##

REFERENCES:
CA 113: 32042h, Squarylium . . . materials, Satoh et al., p. 542, 1990.
CA 110(20): 183054c, Abstract of JP 63-49490 (Mar. 2, 1988), Sakai et al.
CA 109(16): 139346e, Abstract of JP 63-49488 (Mar. 2, 1988), Nishimura et al.

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