THE REACTION OF PHOSPHITES WITH AROYLPHOSPHONATES IN THE PRESENCE OF PROTON DONORS-REVERSE NUCLEOPHILIC ADDITION TO CARBONYL GROUPS

THE REACTION OF PHOSPHITES WITH AROYLPHOSPHONATES IN THE PRESENCE OF PROTON DONORS-REVERSE NUCLEOPHILIC ADDITION TO CARBONYL GROUPS

Trimethyl phosphite attacks the carbonyl oxygen of aromatic α-ketophosphonates in the presence of proton donors such as carboxylic acids. The intermediate quasi-phosphonium salts (6) either demethylate to a diphosphorus compound (4) in the normal Arbusov manner or dealkylate to give a phosphonate (5...

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Veröffentlicht in:Phosphorus and sulfur and the related elements 1985-11, Vol.25 (2), p.173-175
Hauptverfasser: Griffiths, D. V., Jamali, H. A. R., Tebby, J. C.
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Exact sciences and technology
Organic chemistry
Organometalloidal and organometallic compounds
P derivatives
Preparations and properties
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Zusammenfassung:Trimethyl phosphite attacks the carbonyl oxygen of aromatic α-ketophosphonates in the presence of proton donors such as carboxylic acids. The intermediate quasi-phosphonium salts (6) either demethylate to a diphosphorus compound (4) in the normal Arbusov manner or dealkylate to give a phosphonate (5) and trimethyl phosphate.
ISSN:0308-664X
DOI:10.1080/03086648508072731