초록

A process for forming non-polymeric disproportionation products of non-conjugated olefins using catalysts comprising (1) at least one of certain neutral carbene complexes, and (2) at least one of certain compounds of Groups IVa, IVb, Vb, VIb, VIIb, VIII, and Ib of the Periodic Table of the Elements.

대표청구항 ▼

A catalyst for the disproportionation of olefins comprising: (1) at least one inorganic metal compound component selected from a chloride or bromide of a metal of Group IVa (including germanium), IVb, Vb, VIb, VIIb, VIII, or Ib of the Periodic Table, or an oxychloride or oxybromide of molybdenum, tu

A catalyst for the disproportionation of olefins comprising: (1) at least one inorganic metal compound component selected from a chloride or bromide of a metal of Group IVa (including germanium), IVb, Vb, VIb, VIIb, VIII, or Ib of the Periodic Table, or an oxychloride or oxybromide of molybdenum, tungsten, vanadium, or chromium; wherein if the metal is vanadium it is in an oxidation state of either 4 or its highest stable common ionic oxidation state, if the metal is molybdenum, tungsten, or rhenium, it is in an oxidation state of either 5 or its highest stable common ionic oxidation state, and if the metal is other than vanadium, molybdenum, tungsten, or rhenium, the metal is in its highest stable common ionic oxidation state; and (2) at least one neutral carbene complex having the general formula [Figure] wherein R is an alkyl or cycloalkyl radical containing 1 to 10 carbon atoms, an aryl or substituted aryl radical containing 6 to 30 atoms, wherein the substituted radicals have one or more substituents each of which is the same or different and is a halide, alkoxide, or alkyl radical containing 1 to 20carbon atoms; RI is an alkyl, cycloalkyl, aryl, substituted aryl, triarylsilyl or trialkylsilyl radical containing 1 to 30 carbon atoms, and the aryl substituents are as described for R; M is tungsten or rhenium when component (1) does not contain titanium or M is chromium when component (1) does contain titanium; Y is oxygen, sulfur, selenium, nitrogen or phosphorus; each L is a neutral ligand individually selected from CO, NO, PRI3, PCl3, PF3, and pyridine, where RI is as defined above; LI is cyclopentadienyl; p is 0 or 1; n is 5 when p is 0 and n is 2 when p is 1; and m is 2 when Y is nitrogen or phosphorus and m is 1 when Y is oxygen, sulfur or selenium; wherein the molar ratio of component (1) to component (2) is in the range of 1:1 to 500:1.