Abstract: The invention relates to ferrocenyldiphosphine ligands containing a silylene group, ferrocenyldiphosphines bound to inorganic or polymeric organic supports by this silylene group, their preparation and also their metal complexes with transition metals such as rhodium or iridium. The invention also relates to the use of these complexes for hydrogenating organic double or triple bonds, in particular olefinic double bonds and carbon-heteroatom double bonds. The complexes are particularly suitable for enantioselective hydrogenation using chiral diphosphines and prochiral unsaturated compounds.The preparation of these immobilized ferrocenyldiphosphines has only been made possible by the provision of correspondingly functionalized ferrocenyldiphosphines. These compounds and their preparation are likewise novel.Accordingly, the invention also provides compounds of the formula I ##STR1## in which R.sub.1 is C.sub.1 -C.sub.8 alkyl, phenyl or phenyl substituted by from 1 to 3 C.sub.1 -C.sub.4 alkyl or C.sub.1 -C.sub.

Abstract: Compounds of the formula ##STR1## in which A is oxygen, sulfur or --NR.sub.1 --;B is C.sub.2 -C.sub.6 alkylene,D-E is --O--E, --S--E, --O--CH.sub.2 --E, --O--C(.dbd.O)--E, --O--C(.dbd.O)--O--E, --O--C(.dbd.O)--N(H)--E or --O--C(.dbd.S)--N(H)--E;E is phenyl; phenyl which is substituted by one to three substituents; a five-membered aromatic heterocycle having one to three hetero atoms; a five-membered aromatic heterocycle which has one to three hetero atoms and which is substituted by one or two substituents; a six-membered aromatic heterocycle which has one to three nitrogen atoms; or a six-membered aromatic heterocycle which has one to three nitrogen atoms and which is substituted by one or two substituents;L is halogen or methyl;X is fluorine;Y is chlorine or fluorine;Z is hydrogen, fluorine or methyl;m is the number zero, one, two, three, four or five;n is the number zero, one or two andR.sub.1 is hydrogen, C.sub.1 -C.sub.

Abstract: A novel synergistic insectidical composition that comprises, in addition to carriers and/or other adjuvants or diluents, a componentA consisting of an insecticidal compound of formula I ##STR1## wherein R.sub.1 is C.sub.1 -C.sub.3 alkyl, R.sub.2 is halogen and R.sub.3 is hydrogen or halogen, and also a componentB consisting of one or more insecticidal compounds selected from the group consisting of the compounds of formulae II to XV ##STR2## wherein R.sub.1 is hydrogen, methyl or ethyl and R.sub.2 is hydrogen or methyl; ##STR3## The composition is suitable especially for controlling sucking insects.