A process for the preparation of bis-phosphineoxide compounds.

摘要

A process for the preparation of phenylene-bis-phosphineoxide compounds by reacting in a polar aprotic solvent a difluorobenzene compound with a compound of the general formula
<Chemistry id="chema01" num="0001"><Image id="ia01" he="23" wi="68" file="IMGA0001.TIF" imgContent="chem" imgFormat="TIFF" inline="no" /></Chemistry>
wherein R<Sup>1</Sup> and R<Sup>2</Sup> represent the same or different alkyl-, aryl-, alkaryl- or aralkyl group or form together an alkylene group and Me is an alkali metal.