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Synthesis of tertiary phosphine oxides mediated by SmCp2 or Sml2 (1995)

Dallemer, F. ; Collin, J. ; Kagan, H. B.

New York, NY [u.a.] : Wiley-Blackwell

Applied Organometallic Chemistry 9 (1995), S. 431-435

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ISSN: 0268-2605

Schlagwort(e): samarium di-iodide ; divalent samarium ; samarium dicyclopentadienide ; phosphine oxide ; Michael additions ; diphenyl alkyl phosphine oxide ; phenyl dialkyl phosphine oxide ; Chemistry ; Organic Chemistry

Quelle: Wiley InterScience Backfile Collection 1832-2000

Thema: Chemie und Pharmazie

Notizen: Tertiary phosphine oxides are prepared under mild conditions by sequential addition of diphenylphosphinoyl chloride to divalent samarium compounds (SmCp2 and SmI2) followed by reaction with various electrophiles such as organic halides, tosylates, epoxides or α,β-unsaturated ketones. Biscyclopentadienylsamarium (SmCp2) gives better yields than SmI2. Similar reactions, using phenylphosphonoyl dichloride, SmI2 and subsequent addition of two equivalents of activated halides, yield the corresponding tertiary phosphine oxides.

Zusätzliches Material: 1 Tab.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1002/aoc.590090510

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