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ÜBER EINIGE REAKTIONEN DER DIALKYLBENZYLPHOSPHINIMIDE

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Pages 233-237 | Received 07 Jul 1986, Published online: 24 Feb 2007
 

Abstract

Dialkylbenzylphosphine imides C6H5CH2–PRR′[dbnd]N″ (R, R′ = CH3, C2H5; R″ = H, CH3, Si(CH3)3 react with aliphatic and aromatic aldehydes in benzene solution on heating to 80°C directly and in high yields according to a Horner-Wittig-reaction with formation of an olefine whereas ketones like benzophenone and acetophenone only perform an O/NR″ exchange (R″ = H).

Dialkylbenzylphosphinimide C6H5CH2–PRR′[dbnd]N″ mit R, R′ = CH3, C2H5 und R″ = H, CH3, Si(CH3)3 reagieren mit aliphatischen und aromatischen Aldehyden in benzolischer Lösung beim Erwärmen auf 80°C direkt und mit hohen Ausbeuten im Sinne einer Horner-Wittig-Reaktion unter Olefinbildung, während sich mit Ketonen wie Benzophenon oder Acetophenon nur ein O/NR″-Austausch (R″ = H) vollzieht.

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