Substituted cyclopentadiene electron transport compounds

Details Substituted cyclopentadiene electron transport compounds Substituted cyclopentadiene electron transport compounds

1989-11-20

1992-04-07

Brust, Joseph Paul

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

Organic compounds

Nitriles

558419, 568928, 570129, C07C25531, C07C25550

Patent

active

051030381

ABSTRACT:
Novel tetrasubstituted dicyanomethylene cyclopentadienes are provided which have utility as electron-transport agents in positively-charged electrophotographic elements. The compounds are characterized by the formula: ##STR1## wherein: R.sub.1 and R.sub.4 are each independently selected from the group consisting of lower alkyl, halogen and cyano;

REFERENCES:
patent: 4082550 (1978-04-01), Yoerger
C. A. vol. 77 (1972), 4655e McBee et al.
C.A. 1972-1976 Formula Index, p. 9533F.

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