摘要:
Sulfonated phosphines of the formula ##STR1## in which R is cyclohexyl or alkyl having 1 to 4 carbon atoms, M is hydrogen, alkyl substituted ammonium, aryl substituted-ammonium, monovalent metal, or the chemical equivalent of a polyvalent metal, x is 1, 2, or 3 and n is 0 or 1. These compounds are obtained by sulfonation of the non-sulfonated parent substances with oleum or an anhydrous mixture of sulfuric acid and orthoboric acid.
摘要:
The sulfonation of arylphosphines, i.e. mono-, di-, oligo- and polyphosphines, which contain at least one aromatic radical capable of being sulfonated, is carried out in the presence of a Lewis acid at 0.degree. to 80.degree. C. The process avoids side-reactions, in particular the formation of phosphine oxides. In treating the sulfonation mixture, the Lewis acid can be removed together with the sulfuric acid.
摘要:
Sulfonated phosphines of the formula ##STR1## in which R is cyclohexyl or alkyl having 1 to 4 carbon atoms, M is hydrogen, alkyl substituted ammonium, aryl substituted-ammonium, monovalent metal, or the chemical equivalent of a polyvalent metal, x is 1, 2, or 3 and n is 0 or 1. These compounds are obtained by sulfonation of the non-sulfonated parent substances with oleum or an anhydrous mixture of sulfuric acid and orthoboric acid.
摘要:
The sulfonation of arylphosphines, which contain at least one aromatic radical which can be sulfonated, is carried out with an anhydrous mixture of sulfuric acid and orthoboric acid. By choosing the appropriate reaction temperature, the process allows selective introduction of the desired number of sulfonic acid radicals into the phosphine molecule and avoids the formation of phosphine oxides. When separating the sulfonation mixture, the orthoboric acid can be separated off together with the sulfuric acid.
摘要:
Sulfonated diphosphines of the formula ##STR1## in which Ar is m--C.sub.6 H.sub.4 --SO.sub.3 M, M is hydrogen, ammonium, a monovalent metal, or the chemical equivalent of a polyvalent metal; Ph is phenyl; the m's are individually 1 or 2, and the n's are individually 0, 1, or 2. A method of their preparation and the hydroformylation of olefins and olefinically unsaturated compounds using these compounds as a constituent of water-soluble catalyst systems are also disclosed.
摘要:
Sulfonated diphosphines of the formula ##STR1## in which Ar is m-C.sub.6 H.sub.4 -SO.sub.3 M, M is hydrogen, ammonium, a monovalent metal, or the chemical equivalent of a polyvalent metal; Ph is phenyl; the m's are individually 1 or 2, and the n's are individually 0, 1, or 2. A method of their preparation and the hydroformylation of olefins and olefinically unsaturated compounds using these compounds as a constituent of water-soluble catalyst systems are also disclosed.
摘要:
The chemical compound 3,4-dimethyl-2,5,6-tris(p-sulfonatophenyl)-1-phosphanorbernadiene, a process for the preparation thereof and a process for the hydroformylation of olefinically unsaturated compounds with the use of catalysts which contain the aforementioned chemical compound.
摘要:
Sulfonated diphosphines of the formula ##STR1## in which Ar is m-C.sub.6 H.sub.4 --SO.sub.3 M, M is hydrogen, ammonium, a monovalent metal, or the chemical equivalent of a polyvalent metal; Ph is phenyl; the m's are individually 1 or 2, and the n's are individually 0, 1, or 2. A method of their preparation and the hydroformylation of olefins and olefinically unsaturated compounds using these compounds as a constituent of water-soluble catalyst systems are also disclosed.
摘要:
A process for regenerating a water-soluble hydroformylation catalyst system comprising a coupler rhodium hydrogen-carbonyl complex of rhodium and compounds of the formula ##STR1## wherein Ar.sup.1 and Ar.sup.2 and Ar.sup.3 are individually phenyl or naphthyl, Y.sup.1, Y.sup.2 and Y.sup.3 are individually selected from the group consisting of alkyl and alkoxy of 1 to 4 carbon atoms, halogen, --OH, --CN, --NO.sub.2 and R.sup.1 R.sup.2 N--, R.sup.1 and R.sup.2 are individually alkyl of 1 to 4 carbon atoms, X.sup.1, X.sup.2 and X.sup.3 are individually carboxylate (--COO.sup.-) or sulfonate (--SO.sub.3.sup.-), m.sub.1, m.sub.2 and m.sub.3 are individually integers of 0 to 3, at least one of m.sub.1, m.sub.2 or m.sub.3 being equal to or greater than 1, and n.sub.1, n.sub.2 and n.sub.3 are individually integers of 0 to 5 and if appropriate in excess comprising adding maleic acid, fumaric acid or olefinically unsaturated compounds of formula ##STR2## wherein X is selected from the group consisting of O, S, -- ##STR3## or ##STR4## and R.sup.3, R.sup.4 and R.sup.5 are individually hydrogen, or alkyl or aryl to an aqueous solution of the catalyst system in an amount sufficient to remove sulfonated or carboxylated alkyl-arylphosphanes.