Phosphorus-containing podands: XV. Synthesis of bis(diphenylphosphinoylmethyl) ethers of oligoethylene glycols and selectivity of their complex formation with alkali metal cations in a low-polarity solvent

Authors
Tsvetkov, EN Evreinov, VI Bondarenko, NA Safronova, ZV
Citation
En. Tsvetkov et al., Phosphorus-containing podands: XV. Synthesis of bis(diphenylphosphinoylmethyl) ethers of oligoethylene glycols and selectivity of their complex formation with alkali metal cations in a low-polarity solvent, RUSS J G CH, 69(7), 1999, pp. 1039-1046
Citations number
32
Categorie Soggetti
Chemistry
Journal title
RUSSIAN JOURNAL OF GENERAL CHEMISTRY
ISSN journal
10703632 → ACNP
Volume
69
Issue
7
Year of publication
1999
Pages
1039 - 1046
Database
ISI
SICI code
1070-3632(199907)69:7<1039:PPXSOB>2.0.ZU;2-C
Abstract
An improved procedure for preparing bis(diphenylphosphinoylmethyl) ethers o f oligoethelene glycols of the general formula Ph2P(O)CH2O(CH2CH2O)(n)CH2P( O)Ph-2 (n = 0-6) is developed, and the stability constants of their alkali cation complexes in the THF-CHCl3 system at 25 degrees C were determined by conductometry.