Benzothiophene/indole-substituted maleimide derivatives, photoch

Details Benzothiophene/indole-substituted maleimide derivatives, photoch Benzothiophene/indole-substituted maleimide derivatives, photoch

1994-03-25

1995-11-21

Springer, David B.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548417, C07D49512, C07D40914

Patent

active

054688744

ABSTRACT:
A novel benzothiophene/indole-substituted maleimide derivative, a photochromic material and an optical recording material using the same. The benzothiophene/indole-substituted maleimide derivative is represented by the following formula (1): ##STR1## or the following formula (2): ##STR2## wherein R is a substituted or an unsubstituted monovalent hydrocarbon group, R.sup.1 and R.sup.2 are a hydrogen atom, an alkyl group, an alkylthio group or an alkoxy group under the condition where at least either one of them is an alkylthio group or an alkoxy group, R.sup.3 is an alkyl group or an acyl group, and rings A and B may not be substituted or may be substituted with an alkyl group, an alkoxy group or a halogen atom, respectively.

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