Mixture useful as a catalyst for hydroformylating unsaturated compound or its mixture, comprises e.g. 6,6'-(3,3'-di-tert-butyl-5,5'-dimethoxybiphenyl-2,2'-diyl)bis(oxy)bis(2,4,8,10-tetramethyldibenzo(d,f)(1,3,2)dioxaphosphepine)

摘要

Mixture comprises 4,8-di-tert-butyl-2,10-dimethoxy-6-(3,3',5,5'-tetramethyl-2'-(2,4,8,10-tetramethyldibenzo[d,f][1,3,2]dioxaphosphepin-6-yloxy)biphenyl-2-yloxy)dibenzo[d,f][1,3,2]dioxaphosphepine (I) and 6,6'-(3,3'-di-tert-butyl-5,5'-dimethoxybiphenyl-2,2'-diyl)bis(oxy)bis(2,4,8,10-tetramethyldibenzo[d,f][1,3,2]dioxaphosphepine) (II). Mixture comprises 4,8-di-tert-butyl-2,10-dimethoxy-6-(3,3',5,5'-tetramethyl-2'-(2,4,8,10-tetramethyldibenzo[d,f][1,3,2]dioxaphosphepin-6-yloxy)biphenyl-2-yloxy)dibenzo[d,f][1,3,2]dioxaphosphepine of formula (I) and 6,6'-(3,3'-di-tert-butyl-5,5'-dimethoxybiphenyl-2,2'-diyl)bis(oxy)bis(2,4,8,10-tetramethyldibenzo[d,f][1,3,2]dioxaphosphepine) of formula (II). Independent claims are also included for: (1) preparing the mixture, comprising (i) carrying out oxidative coupling of 2,4-dimethylphenol to obtain 3,3',5,5'-tetramethyl-2,2'-dihydroxybiphenyl, (ii) carrying out oxidative coupling of 3-tert-butyl-4-hydroxyanisole to obtain 5,5'-dimethoxy-3,3'-di-tert-butyl-2,2'-dihydroxybiphenyl, (iii) reacting 3,3',5,5'-tetramethyl-2,2'-dihydroxybiphenyl obtained from the step (i) with phosphorus trichloride under inert gas atmosphere to obtain phosphorochloridite derivative, and (iv) reacting at least 2 equivalents phosphorochloridite derivative obtained from the step (iii) with 1 equivalent 5,5'-dimethoxy-3,3'-di-tert-butyl-2,2'-dihydroxybiphenyl obtained from the step (ii) under inert gas atmosphere; (2) a complex mixture comprising complex compounds of formula (III) and (IV); (3) a composition comprising the above complex mixture, and bases, organic amines, epoxides, buffer solutions or ion exchangers; and (4) hydroformylating an unsaturated compound or a mixture of unsaturated compounds, comprising (a) providing the above mixture or the composition, (b) introducing a gas mixture which comprises carbon monoxide and hydrogen, and (c) adding at least one unsaturated compound or a mixture of unsaturated compounds. M : Fe, Ru, Os, Co, Rh, Ir, Ni, Pd or Pt, where M optionally forms additional bonds. [Image] [Image] [Image] [Image].