Fluorene derivative

Details Fluorene derivative Fluorene derivative

1990-04-10

1991-12-24

Richter, Johann

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

Organic compounds

Nitriles

558405, C07C25550

Patent

active

050754874

ABSTRACT:
A fluorene derivative useful as an electron transport material is disclosed, which is represented by formula (I) ##STR1## wherein R.sub.1 represents a hydrogen atom or a phenyl group, R.sub.2 represents a hydrogen atom, a nitro group, or an alkoxycarbonyl group, and R.sub.3 and R.sub.4 each represents a hydrogen atom or an alkyl group.

REFERENCES:
patent: 5011969 (1991-04-01), Akasaki et al.

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