9,9-bis(perfluroralkyl)xanthene, 9-aryl-9-perfluroralkylxanthene

Details 9,9-bis(perfluroralkyl)xanthene, 9-aryl-9-perfluroralkylxanthene 9,9-bis(perfluroralkyl)xanthene, 9-aryl-9-perfluroralkylxanthene

1990-05-23

1991-09-24

Anderson, Harold D.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

528176, 528183, 528185, 528188, 528190, 528191, C07D31182, C08G 6302

Patent

active

050515209

ABSTRACT:
Disclosed are rigid fluorinated monomers, their preparation, and polymers derived therefrom based on two novel tricyclic xanthene core systems, 9,9-bis(perfluoroalkyl)xanthene (I) and 9-phenyl-9-perfluoroalkylxanthene (II). The monomers have utility in the preparation of advanced high-performance polymers, particularly polyimides.

REFERENCES:
patent: 4698295 (1987-10-01), Pfeifer et al.

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