Processes employing indicator ligands

Details Processes employing indicator ligands Processes employing indicator ligands

C - Chemistry, Metallurgy

07

C

C07C 45/50 (2006.01) B01J 31/02 (2006.01) B01J 31/18 (2006.01) B01J 31/40 (2006.01) B01J 38/74 (2006.01) C07C 45/80 (2006.01) C07C 47/02 (2006.01) C07C 47/228 (2006.01) C07C 47/277 (2006.01) C07C 67/347 (2006.01) C07C 69/716 (2006.01) C07C 253/10 (2006.01) C07D 209/46 (2006.01) C07D 333/22 (2006.01) C07F 9/02 (2006.01) C07F 9/145 (2006.01) C07F 9/6574 (2006.01) C07F 15/00 (2006.01)

Patent

CA 2239606

This invention relates to processes which comprise reacting one or more reactants in the presence of a metal-organopolyphosphite ligand complex catalyst and optionally free organopolyphosphite ligand, and an amount of a sterically hindered organophosphorus ligand different from the organopolyphosphite ligand of said metal-organopolyphosphite ligand complex catalyst, to produce one or more products. The sterically hindered organophosphorus ligands are useful as indicators of organopolyphosphite ligand depletion in said processes.

Cette invention se rapporte à des procédés qui consistent à faire réagir un ou plusieurs réactifs en présence d'un catalyseur à complexe métal/ligand d'organopolyphosphite et éventuellement un ligand d'organopolyphosphite libre, ainsi qu'une certaine quantité d'un ligand d'organophosphore à empêchement stérique différent du ligand d'organopolyphosphite contenu dans le catalyseur à complèxe métal/ligand d'organopolyphosphite, afin d'obtenir un ou plusieurs produits. Les ligands d'organophosphore à empêchement stérique sont utiles comme indicateurs de l'appauvrissement de ce procédé en ligand d'organopolyphosphite.

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