CATALYST COMPOSITION CONTAINING A COMBINATION OF MONOPHOSPINE, TETRAPHOSPHINE LIGAND AND METHOD FOR HYDROFORMYLATION WITH ITS APPLICATION Russian patent published in 2023 - IPC B01J23/46 B01J31/02 B01J31/20 B01J31/24 C07C45/50 

FIELD: catalyst compositions for hydroformylation processes.

SUBSTANCE: catalyst composition for the hydroformylation process comprises: (a) a transition metal which is rhodium; (b) a monophosphine; and (c) a tetraphosphine having the following structure:where each P is a phosphorus atom and each R¹ -R⁴⁶ is independently hydrogen, a C1-C8 alkyl group, an aryl group, an alkaryl group, an alkoxy group, a haloalkyl group, a haloaryl group, or a halogen, and wherein the catalyst composition comprises at least 40 moles of monophosphine per mole of transition metal. The invention also relates to a hydroformylation process.

EFFECT: increased regioselectivity N:I> =13 by adding a tetradentate phosphine ligand as part of the catalyst composition.

8 cl, 1 dwg, 6 tbl, 17 ex