イミド遷移金属錯体メタセシス触媒

Japanese Patent JP3763842

B2

An olefin metathesis catalyst system and process for the metathesis polymerization of cyclic olefins, such as dicyclopentadiene, are disclosed. The catalyst system comprises the reaction product of: (a) an imido transition metal halide complex of formula: wherein Ar is C6-20 aryl, preferably phenyl; M is a transition metal selected from the second and third rows of Groups 5, 6, 7 and 8 of the Periodic Table (IUPAC 1989 convention) and including for example niobium, tantalum, molybdenum, tungsten, rhenium, ruthenium or osmium, preferably tungsten or molybdenum; R is independently halide, C1-20 alkyl, C1-12 alkoxy, C1-12 haloalkyl, C6-20 aryl, C6-20 aryloxy, cyano or combinations thereof; L is independently a complexing ligand selected from carbonyl, C1-12 alkoxy, C1-12 haloalkoxy, C1-12 alkyl ethers, including mono-, di- and higher ethers, C12 alkylnitriles, C5-20 pyridines, C3-36 tri(hydrocarbyl)phosphines; X is independently halide, preferably chloride; x is 2 to 4; r is independently 0 to 5; y is 0 to 3, preferably 0 or 1; and x+y=3, 4, or 5; and (b) a biphenol of the formula: in which each Ar represents an aromatic ring-containing moiety having at least one hydroxyl group attached to an aromatic ring; each R is independently selected from C1-12 alkyl, aryl, halide, mono-, di or trihalo methyl, cyano and alkoxy; each n is independently 0-4; and m is independently 1-4; and the catalyst system further includes a co- catalyst.

Kelsey, Donald Ross

JP50536095A

April 05, 2006

July 21, 1994

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Shell Oil Company

C08F4/69; C08F32/00; C08G61/08

JP6510298A
JP5345817A
JP3115322A

US5142006

Kazuo Shamoto
Shosuke Imai
Tadashi Masui
Tadahiko Kurita
Yasushi Kobayashi
Tatsuo Tomizu

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