Patent US7026017 - Organometallic monoacylalkylphosphines - Google PatentsSearch Images Maps Play YouTube News Gmail Drive More ??Sign inAdvanced Patent SearchPatentsCompounds of the formula I in which Ar is a group or unsubstituted or substituted cyclopentyl, cyclohexyl, naphthyl, biphenylyl or an O-, S- or N-containing 5- or 6-membered heterocyclic ring; R1 and R2 are C1-C20alkyl, OR11, CF3 or h