Interaction of some methylenediphosphanes with hexafluoroacetone and hexafluorothioacetone dimer

Citation
Iv. Shevchenko et al., Interaction of some methylenediphosphanes with hexafluoroacetone and hexafluorothioacetone dimer, EUR J INORG, (9), 2001, pp. 2377-2383
Citations number
21
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY
ISSN journal
1434-1948 → ACNP
Issue
9
Year of publication
2001
Pages
2377 - 2383
Database
ISI
SICI code
1434-1948(200109):9<2377:IOSMWH>2.0.ZU;2-A
Abstract
The reactions of methylenediphosphanes 1a-c with hexafluoroacetone (HFA) an d hexafluorothioacetone dimer (HFTA) gave the respective carbodiphosphorane s 5a, 5b, 6, 15, and 19. The carbodiphosphoranes 6 and 19, with phenyl grou ps at phosphorus, were able to react further with C=O or C=S functions. Com pound 6 added one equivalent of HFA across one of the ylidic P=C bonds to g ive compound 9, a stable intermediate of the Wittig reaction. The addition of HFTA to 19 gave, unexpectedly, the isomeric compound 21. The molecular s tructures of 9, 15, and 21 were confirmed by X-ray investigations.