The present invention relates to a flame-retarding agent comprising a phosphoramidate compound represented by Formula (I): ##STR00001##
wherein R.sub.1 and R.sub.2 are each independently C.sub.1-3 alkyl, R.sub.11 and R.sub.12 are each independently C.sub.1-3 alkylene, R.sub.13 is C.sub.1-6 alkylene, B.sub.1 is hydrogen or C.sub.1-6 alkyl, and A is hydrogen or an organic group represented by Formula (Ia): ##STR00002##
wherein R.sub.3 and R.sub.4 are each independently C.sub.1-3 alkyl, R.sub.14 and R.sub.15 are each independently C.sub.1-3 alkylene, and B.sub.2 is hydrogen or C.sub.1-6 alkyl,
wherein when B.sub.1 is C.sub.1-6 alkyl, and A is hydrogen, B.sub.1 and R.sub.13-A, taken together with nitrogen to which they are attached, may form a non-aromatic nitrogen-containing heterocycle, and
wherein when B.sub.1 is C.sub.1-6 alkyl, A is an organic group represented by Formula (Ia), and B.sub.2 is C.sub.1-6 alkyl, B.sub.1 and B.sub.2, taken together with nitrogen to which they are attached and with R.sub.13, may form a non-aromatic nitrogen-containing heterocycle.

The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.

Methods to access 2-aryl chromene compounds via an asymmetric catalytic process.

The present invention relates to a process for the asymmetric oxidation of nucleophilic organic compounds, particularly metal-free, with peroxide compounds in the presence of a chiral Brnsted acid catalyst. In one detail, the present invention relates to a process for enantioselective sulfoxidation of thiocompounds with peroxide compounds in the presence of a chiral imidodiphosphate catalyst. In another detail, the present invention relates to a process for enantioselective sulfoxidation of thiocompounds with peroxide compounds in the presence of a chiral phosphoric acid catalyst.

The invention relates to oligomerization of olefins, such as ethylene, to higher olefins, such as a mixture of 1-hexene and 1-octene, using a catalyst system that comprises a) a source of chromium b) one or more activators and c) a phosphacycle-containing ligating compound. Additionally, the invention relates to a phosphacycle-containing ligating compound and a process for making said compound.

The invention relates to Rh, Ru, Co and Ir complexes comprising bidentate diphosphoramidites as ligands and to the use thereof as catalysts for the hydroformylation of olefins. The invention also relates to a process for preparing an aldehyde from an olefin using the complexes or ligands mentioned.

The invention relates to Rh, Ru, Co and Ir complexes comprising bidentate diphosphoramidites as ligands and to the use thereof as catalysts for the hydroformylation of olefins. The invention also relates to a process for preparing an aldehyde from an olefin using the complexes or ligands mentioned.

Methods to access 2-aryl chromene compounds via an asymmetric catalytic process.

Methods to access 2-aryl chromene compounds via an asymmetric catalytic process.

The invention relates to Rh, Ru, Co and Ir complexes comprising bidentate diphosphoramidites as ligands and to the use thereof as catalysts for the hydroformylation of olefins. The invention also relates to a process for preparing an aldehyde from an olefin using the complexes or ligands mentioned.