Specific Features of Reaction of 2-R-Benzo[ e][1,3,2]dioxaphosphinin-4-ones with Perfluorodiacetyl. Synthesis and Steric Structure of 4′,5′-Bis(trifluoromethyl)-4-oxo-2-(2,2,3,3-tetrafluoropropoxy)-2λ 5-spiro[benzo[ e][1,3,2]dioxaphosphinine-2,2′-[1,3,2]dioxaphosphole]

Autor:	Konovalova, I. V., Mironov, V. F., Ivkova, G. A., Zagidullina, E. R., Gubaidullin, A. T., Litvinov, I. A., Kurykin, M. A.
Předmět:	CHEMICAL reactions NUCLEAR magnetic resonance spectroscopy X-ray diffraction ORGANIC chemistry CHEMISTRY
Zdroj:	Russian Journal of General Chemistry; Apr2005, Vol. 75 Issue 4, p549-560, 12p
Abstrakt:	2-R-benzo[ e][1,3,2]dioxaphosphinin-4-ones react with perfluorodiacetyl under mild conditions to form relatively labile spirophosphoranes containing a 1,3,2-dioxaphosphole ring. These compounds gradually convert to more stable 2-R-4,5-bis(trifluoromethyl)-1,3,2λ5-dioxaphosphole 2-oxides and diastereometic 2-R-4-(trifluoroacetyl)-4-(trifluoromethyl)benzo[ f][1,3,2λ5]dioxaphosphepine 2-oxides, whose structure was confirmed by means of NMR and IR spectroscopy. The structure of 4′,5′ -bis(trifluoromethyl)-4-oxo-2-(2,2,3,3-tetrafluoropropoxy)-2λ 5-spiro[benzo[ e][1,3,2]dioxaphosphinine-2,2′-[1,3,2]dioxaphosphole] was confirmed by X-ray diffraction analysis. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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