Organic compounds -- part of the class 532-570 series – Organic compounds – Heavy metal containing
Reexamination Certificate
2006-12-22
2008-09-02
Keys, Rosalynd (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heavy metal containing
C556S070000, C556S071000, C568S660000, C568S661000
Reexamination Certificate
active
07420074
ABSTRACT:
A process to prepare substituted aryl pnictogen derivatives comprising contacting a fluoropolyether or fluoroalkyl primary bromide or iodide, with a pnictogen derivative such as triaryl phosphine, triaryl arsine, or triaryl stibine or triaryl phosphine oxide, triaryl arsine oxide or triaryl stibine oxide, to produce the corresponding fluoropolyether- or fluoroalkyl- substituted aryl phosphine oxide, aryl arsine oxide or aryl stibine oxide; and optionally, contacting the oxide product with a reducing agent to form the corresponding substituted aryl phosphine, arsine or stibine.
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Hay Kevin Anthony
Howell Jon L.
E.I. du Pont de Nemours and Company
Keys Rosalynd
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