Phosphane, Verfahren zu ihrer Herstellung und ihre Verwendung in Metallkomplexen

摘要

The invention relates to a method for producing phosphanes of the generic formula (I) Ar<1>3-xP(Ar<2>(OZ)y)x, in which Ar<1> and Ar<2> independently of each other represent aromatic C6-20 radicals possibly substituted by halogen atoms, carboxyl groups, hydroxyl groups, alkyl C1-6 groups, phenyl groups or naphthyl groups, or represent heteroaromatic C4-9 radicals, whereby Ar<1> has one free valence and Ar<2> has y+1 free valences; Z is a carbohydrate radical with a glycosidic bond; x has a value of 1, 2 or 3; and y has a value of 1 or 2. According to said method, (1) carbohydrate halogenoses of the generic formula (II) Z'-X, in which Z' represents a radical Z as described above, in which the hydroxyl groups are substituted by protective groups and X represents Br, Cl or F, are reacted with a phosphane of the generic formula (III) Ar<1>3-xP(Ar<2>(OH)y)x, in which Ar<1>, Ar<2>, x and y have the meaning given above, in a multiple-phase reaction medium in the presence of a base and a phase-transfer catalyst, to yield a phosphane of the generic formula (IV) Ar<1>3-xP(Ar<2>(OZ')y)x, in which Ar<1>, Ar<2>, x, y and Z' have the meaning given above, and (2) the protective groups are separated from Z'.