Organic compounds -- part of the class 532-570 series – Organic compounds – Halogen containing
Reexamination Certificate
2005-03-29
2005-03-29
Price, Elvis O. (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Halogen containing
C570S141000, C570S142000, C570S143000, C570S144000, C570S162000, C570S175000, C570S190000, C528S488000
Reexamination Certificate
active
06872861
ABSTRACT:
The invention relates to a process for preparing polyfluoroalkyl-lithium compounds by deprotonation of polyfluoroalkyl compounds by means of lithium bases.
REFERENCES:
patent: 6207846 (2001-03-01), Barnes et al.
patent: 20020022734 (2002-02-01), Marhold et al.
Piettre, Serge,R. et al: “Easy and general access to .alpha.,.alpha.-difluoromethylene phosphonothioic acids. A new class of compounds” Tetrahedron Letters (1996), 37(13), 2229-32 XP002211887 Seite 2230 Seite 2232; Beispiel 12.
Tetrahedron Letters, vol. 26, No. 43, pp 5243-5246, (month unavailable) 1985 Pentafluoroethyllithuim. Generation and Use in Synthesis by Paul G. Gassman and Neil J. O'Reilly.
J. Chem. Soc. (month unavailable) 1962, pp. 1993-1999 Organometallic and Metalloid Compounds Made from Heptafluoro-2-iodopropane, and their Properties by R. D. Chambers, W. K. R. Musgrave and J. Savory.
Adcock, James L. et al: “Synthesis and reactions of perfluoroneopentyllithium” J. Org. Chem. (1979), 44(19), 3431-3, XP002211886 das ganze dokument.
Barten Jan
Kadyrov Alexander
Kolomeitsev Alexander
Marhold Albrecht
Röschenthaler Gerd-Volker
Akorli Godfried R.
Bayer Aktiengesellschaft
Eyl Diderico van
Price Elvis O.
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