Reactions of N≡W(OtBu)3 and O=W(OiPr)4 with Low-Coordinate Phosphorus Compounds: Similarities and Differences.

Autor:	Kovalenko, Oleksandr, Kinzhybalo, Vasyl, Lis, Tadeusz, Brusilovets, Anatolii I.
Předmět:	CHEMICAL reactions COORDINATION compounds PHOSPHORUS compounds BENZENE X-ray crystallography RING formation (Chemistry) NUCLEAR magnetic resonance spectroscopy
Zdroj:	Phosphorus, Sulfur & Silicon & the Related Elements; Apr2011, Vol. 186 Issue 4, p814-821, 8p, 4 Diagrams, 2 Charts
Abstrakt:	The reactions of N≡W(OtBu)3 and O=W(OiPr)4 with (Me3Si)2NPNSiMe3 (I), (Me3Si)2NPNtBu (II), and (Me3Si)2NP(NSiMe3)2 (III) in benzene have been studied. Low-coordinate phosphorus derivatives react with above mentioned tungsten compounds via 1,2-addition of an W-OR bond across the P=N bond, resulting in four-membered metallacycles. (Me3Si)2N-P(NSiMe3)2 reacts with O=W(OiPr)4 in a different manner via [2 + 2] cycloaddition. The structure of all new compounds was elucidated by 1H, 13C, and 31P NMR spectroscopy. Compound [(Me3Si)2N-P(NSiMe3)2(O)]{W(OiPr)4} (6) was also characterized by single crystal X-ray analysis. [ABSTRACT FROM AUTHOR]
Databáze:	Complementary Index
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