Functionalized ferrocenyldiphosphines, a process for their preparation and their use

A compound of the formula VI

• R1 is C1-C8alkyl, phenyl or phenyl substituted by from 1 to 3 C1-C4alkyl or C1-C4alkoxy;
• R10, R11, R12 and R13 are, independently of one another, C1-C12alkyl, C5-C12cycloalkyl, phenyl, C1-C4alkyl- or C1-C4alkoxy-substituted C5-C12cycloalkyl or phenyl substituted by from one to three C1-C4alkyl, C1-C4alkoxy, —SiR4R5R6, halogen, —SO3M, —CO2M, —PO3M, —NR7R8, —[+NR7R8R9]X− or C1-C5fluoroalkyl;
• or the groups —PR10R11 and —PR12R13 are each, independently of one another, a radical of the formula IV, IVa, IVb or IVc
• R4, R5 and R6 are, independently of one another, C1-C12alkyl or phenyl;
• R7 and R8 are, independently of one another, H, C1-C12alkyl or phenyl or R7 and R8 together are tetramethylene, pentamethylene or 3-oxa-1,5-pentylene;
• R9 is H or C1-C4alkyl;
• M is H or an alkali metal;
• X− is the anion of a monobasic acid;
• halogen is fluorine, chlorine, bromine or iodine;
• and
• a) B is a direct bond and FU is a functional group bound via a carbon atom to the cyclopentadienyl;
• or
• b) B is a bridging group bound via a carbon atom or a silicon atom to the cyclopentadienyl and FU is a functional group;
• with the exception of the compound of the formula (VI), in which R1 is methyl, R10 and R11 are phenyl, R12 and R13 are cyclohexyl, B is 1,3-propylene and FU is NH2;
• and with the exception of compounds of the formula (VI) in which B is Si(R12′)2″R13′, and FU is Z, where R12′ are each, independently of one another, C1-C12alkyl, C3-C7-cycloalkyl, benzyl or phenyl or the two radicals R12′ together are C5-C12alkylene;
• R13′, is C1-C12alkylene or phenylene;
• Z is Cl, NH2, NH—C1-C12alkyl, or a group —A—CO—NH—R14-Si(Ra)n (OR15)3-n;
• A is NH or N(C1-C12alkyl);
• R14 is C1-C12alkylene;
• R15 is C1-C12alkyl;
• Ra is C1-C4alkyl or OR15;
• and
• n is 0, 1 or 2.