MIXED ANHYDRIDES OF DIALKYLPHOSPHINOUS ACIDS AND DIALKYL HYDROGEN PHOSPHITES, AND THE ISOMERIC MONOXIDES
- 1 September 1977
- journal article
- research article
- Published by Taylor & Francis in Phosphorus and Sulfur and the Related Elements
- Vol. 3 (3) , 299-307
- https://doi.org/10.1080/03086647708079938
Abstract
The three isomers possible for oxidized 1,1-dialkyl-2,2-dialkoxydiphosphines, R2(O)P–P(OR')2 1, R2P–O–P(OR')2 2, and R2P–P(O)(OR')2 3, have been synthesized. Irreversible transformations of 1 to 2 and 2 to 3 have been found and the rearrangement patterns, the role of electrophilic and nucleophilic catalysts are discussed. The fact that 3 is more stable than 1 is attributed to higher donor activity of the ligands attached to the four-coordinate phosphorus in 3. Acid chlorides have been shown to attack the phosphorus atom of ambident anions of trivalent phosphorus acids (the products are 1 and 3) whereas the acids proper react with the acid halides at the oxygen atom, to give 2.Keywords
This publication has 6 references indexed in Scilit:
- The tetraamidodiphosphine monoxide ⇌-phosphorodiamidous anhydride tautomerismJournal of Organometallic Chemistry, 1976
- Redistribution, condensation, and rearrangement reactions involving dichloro- and dimethoxymethylphosphinesInorganic Chemistry, 1974
- 31P Nuclear Magnetic ResonancePublished by Elsevier ,1971
- Phosphinigsa¨ure-silyl-, -germanyl-, -stannylester des typs (R2PO)nER′4−nJournal of Organometallic Chemistry, 1970
- Darstellung von verbindungen MIT PP — und PPP — gerüstenInorganic and Nuclear Chemistry Letters, 1967
- Über eine spontane Umlagerung der UnterphosphorsäureZeitschrift für anorganische und allgemeine Chemie, 1936