STABILIZED HYDROCYANATION LIGAND COMPOSITION

摘要

A method of stabilizing a phosphorus-based ligand or a ligand blend comprising a plurality of phosphorus-based ligands, wherein the ligand or ligand blend comprises one or more of (i) a bidentate biphosphite ligand of formula (III), (R12-X12 ) (R13-X13)P-X14-Y-Chi24-P (X22-R22) (X23-R23) (ii) a tridentate triphosphite ligand of formula (IIIAlpha) (R12-X12) (R13-X13)P-X14-Y-Chi32-P(X34-R34)-(X33-Y2-R24-P(X23-R23)-(X22-R22) or (iii) a monodentate phosphite ligand of formula (IV) P(X1-R1)(X2-R2)(X3-R3) where each X is oxygen or a bond and each Y is optionally substituted C6-C20 arylene; the process comprising forming a mixture of the ligand or the ligand blend with a liquid which partially or fully solubilizes the ligand or ligand blend, the liquid consisting essentially of one or more of: (a) a solvent system that does not contain peroxidizable species; or, (b) a solvent system that is substantially free of a dissolved metal.