Process for the preparation of di-(2-subst.-1-aryl) alkoxyphosphines

摘要

The invention relates to the preparation of di-(2-subst.-1-aryl) alkoxyphosphines <IMAGE> (R<1> is an organic radical which is inert to Grignard compounds; R<2> is C1-C6-alkyl or C5-C6-cycloalkyl and, if desired, further inert substituents on the phenyl group Ph) by reacting a phosphite II P(-O-R<2>)3 II with a Grignard compound III <IMAGE> (Hal is chlorine, bromine or iodine). The invention furthermore relates to the novel compounds I where R<1> is C1-C4-alkyl or C2-C4-alkoxy; R<2> is C1-C4-alkyl and one of the specific radicals R<1> is present on Ph as further substituent.