The Reactivity of Hexafluorothioacetone and Hexafluoroacetone versus Phosphites |
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| Authors: | Joachim Heine Gerd-Volker Röschenthaler |
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| Institution: | Fachbereich 2 (Biologie/Chemie) der Universit?t , D-28, Bremen , 33 , Federal Republic of Germany |
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| Abstract: | Abstract The dimer of hexafluorothioacetone reacted with various phosphites to form thiophosphates and bis(trifluoromethyl)methylenphosphoranes, being unstable in the case of (Me3SiO) P(OMe)3-n, (n=1?3), where phosphonates (Me3SiO)n-1(MeO)3-nP(O)C(CF3)=CF2] (n=1-3) and Me3SiF were observed. In general, cyclic phosphites behaved similar to acyclic ones. The resulting bis(trifluoromethyl)methylenphosphoranes were thermally stable except compound A, because of a new intramolecular fluorine transfer to phosphorus forming fluorophosphorane B. |
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