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Investigations on Steric and Electronic Influences on the Reactivity of Acetyl(diorganyl)phosphanes and their Oxides
Lindner, Ekkehard,Frey, Gerhard
, p. 3268 - 3274 (2007/10/02)
The aliphatic-aromatic and pure aromatic acetyl(diorganyl)phosphanes CH3C(O)PR1R2 (1a-e) , of which only 1e is stable towards molecular oxygen, can be obtained from CH3C(O)Cl and (CH3)3SiPR1R2 or HPR1R2 in the presence of NEt3 .The corresponding oxides CH3C(O)P(O)R1R2 (2a-e) are formed by reaction of 2O with HP(O)R1R2 .With the lastnamed oxides however only 2a, b, d react to the stable alcohols CH3C2OH (3a, b, d).The reactivity of the newly prepared compounds 1a-e, 2a-e and 3a, b, d depends on electronic and steric influences of the organic residues linked to the phosphorus.
