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公开(公告)号：AT401293T
公开(公告)日：2008-08-15
申请号：AT98941733
申请日：1998-09-07
Applicant: KYOWA YUKA KK
Inventor： MATSUSHITA SHOSHIRO , SHIMIZU IKUO , TOYODA HIROSHI , TANAKA ASAKO
IPC: C07C49/707 , C07C45/00 , C07C45/43 , C07C45/63 , C07C45/65 , C07C45/70 , C07C49/517 , C07C49/753
Abstract: The present invention provides a method for manufacturing 3-alkoxy-2-halogenocyclobutanone derivatives represented by the following general formula (IV) through the following reaction, using a vinyl ether represented by the following general formula (V) and a halogenoacetyl halide represented by the following general formula (VI) as starting materials, wherein R 1 represents an alkyl group and R 2 , R 3 , and R 4 are the same or different and each represents a halogen atom.
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公开(公告)号：EP0908436A4
公开(公告)日：2001-01-10
申请号：EP97915695
申请日：1997-04-10
Applicant: KYOWA YUKA KK
Inventor： FUKUDA YUKITOSHI , HASHIMOTO KEIICHI , MATSUSHITA SHOSHIRO
IPC: C07C11/02 , B01J2/26 , B01J27/10 , B01J31/04 , B01J31/14 , C07C2/30 , C07C2/32 , C07C2/34 , B01J27/128 , B01J31/22
CPC classification number: C07C2/32 , B01J31/04 , B01J31/143 , B01J31/16 , B01J31/1805 , B01J31/2234 , B01J31/24 , B01J31/26 , B01J31/30 , B01J2231/323 , B01J2531/824 , B01J2531/828 , B01J2531/847 , C07C2/30 , C07C2527/08 , C07C2527/126 , C07C2527/135 , C07C2527/138 , C07C2531/04 , C07C2531/14 , C07C2531/16 , C07C2531/22 , C07C2531/26
Abstract: A process for the dimerization of lower olefins characterized by the use of a ternary catalyst comprising (1) at least one salt or complex of a platinum-group transition metal of the periodic table, (2) at least one organoaluminum compound and (3) at least one inorganic metal compound. This process enables the dimerization of lower olefins in an extremely high yield at an extremely high selectivity and at an extremely high recovery of catalyst.
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公开(公告)号：EP0972808A4
公开(公告)日：2000-01-26
申请号：EP98911167
申请日：1998-04-02
Applicant: KYOWA YUKA KK
Inventor： JIMBO SHINICHIRO , MATSUSHITA SHOSHIRO , SHIMIZU IKUO , HOTTA IWAO , IKUTA MASANORI , ITANI IZUMI
IPC: C07D327/04 , C09D11/10 , C09D201/06 , C08L101/06 , C08G75/14 , C08L33/14 , C09D11/00 , C09D133/14 , C09K3/10
CPC classification number: C09D11/106 , C07D327/04 , C09D201/06 , Y10T428/31855
Abstract: A composition comprising a polymer or compound containing at least one five-membered dithiocarbonate group of general formula (I) (wherein R?1, R2 and R3¿ are the same or different and each represents hydrogen or lower alkyl), a nucleophilic reagent and a metal compound.
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公开(公告)号：AU705093B2
公开(公告)日：1999-05-13
申请号：AU2306697
申请日：1997-04-02
Applicant: KYOWA YUKA KK
Inventor： SHIMIZU IKUO , USAMI TAKESHI , TOYODA HIROSHI , OKAJIMA ASAKO , MATSUSHITA SHOSHIRO
IPC: C07C45/43 , C07C45/63 , C07C49/517 , C07C49/707
Abstract: In the formulae, R represents alkyl; and R , R and X independently represent halogen. The present invention relates to a method for producing 3,4-dihydroxy-3-cyclobutene-1,2-dione of general formula (II) by hydrolyzing 3-alkoxy-2,2,4,4-tetrahalogenocyclobutanone derivative of general formula (I).
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公开(公告)号：AU2307497A
公开(公告)日：1997-10-29
申请号：AU2307497
申请日：1997-04-10
Applicant: KYOWA YUKA KK
Inventor： FUKUDA YUKITOSHI , HASHIMOTO KEIICHI , MATSUSHITA SHOSHIRO
IPC: C07C11/02 , B01J2/26 , B01J27/10 , B01J31/04 , B01J31/14 , C07C2/30 , C07C2/32 , C07C2/34 , B01J31/22
Abstract: The present invention relates to a process for dimerizing lower olefins characterized by the use of a catalyst comprising the following three components: (1) at least one salt or complex of a transition metal belonging to the platinum group of the periodic table, (2) at least one organoaluminum compound and (3) at least one inorganic metallic compound. The invention provides a process for dimerizing lower olefins with very high yield and selectivity and also with very high yield per unit weight of catalyst. Also provided is a catalyst to be used in said process.
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Patent Agency Ranking
公开(公告)号：AU2306697A
公开(公告)日：1997-10-29
申请号：AU2306697
申请日：1997-04-02
Applicant: KYOWA YUKA KK
Inventor： SHIMIZU IKUO , USAMI TAKESHI , TOYODA HIROSHI , OKAJIMA ASAKO , MATSUSHITA SHOSHIRO
IPC: C07C45/43 , C07C45/63 , C07C49/517 , C07C49/707
Abstract: In the formulae, R represents alkyl; and R , R and X independently represent halogen. The present invention relates to a method for producing 3,4-dihydroxy-3-cyclobutene-1,2-dione of general formula (II) by hydrolyzing 3-alkoxy-2,2,4,4-tetrahalogenocyclobutanone derivative of general formula (I).
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7.发明公开
公开(公告)号：EP0842919A4
公开(公告)日：1999-02-03
申请号：EP97915678
申请日：1997-04-02
Applicant: KYOWA YUKA KK
Inventor： SHIMIZU IKUO , USAMI TAKESHI , TOYODA HIROSHI , OKAJIMA ASAKO , MATSUSHITA SHOSHIRO
IPC: C07C45/43 , C07C45/63 , C07C49/517 , C07C49/707
CPC classification number: C07C49/707 , C07C45/43 , C07C45/63 , C07C49/517
Abstract: A process for the preparation of 3,4-dihydroxy-3-cyclobutene-1,2-dione of general formula (II) by hydrolyzing 3-alkoxy-2,2,4,4-tetrahalogenocyclobutanone derivatives of general formula (I), wherein R1 is alkyl; and R2, R3 and X are each independently halogeno.
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公开(公告)号：DE69839732D1
公开(公告)日：2008-08-28
申请号：DE69839732
申请日：1998-09-07
Applicant: KYOWA YUKA KK
Inventor： MATSUSHITA SHOSHIRO , SHIMIZU IKUO , TOYODA HIROSHI , TANAKA ASAKO
IPC: C07C49/707 , C07C45/00 , C07C45/43 , C07C45/63 , C07C45/65 , C07C45/70 , C07C49/517 , C07C49/753
Abstract: The present invention provides a method for manufacturing 3-alkoxy-2-halogenocyclobutanone derivatives represented by the following general formula (IV) through the following reaction, using a vinyl ether represented by the following general formula (V) and a halogenoacetyl halide represented by the following general formula (VI) as starting materials, wherein R 1 represents an alkyl group and R 2 , R 3 , and R 4 are the same or different and each represents a halogen atom.
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公开(公告)号：DE69706504T2
公开(公告)日：2002-04-25
申请号：DE69706504
申请日：1997-04-02
Applicant: KYOWA YUKA KK
Inventor： SHIMIZU IKUO , USAMI TAKESHI , TOYODA HIROSHI , OKAJIMA ASAKO , MATSUSHITA SHOSHIRO
IPC: C07C45/43 , C07C45/63 , C07C49/517 , C07C49/707
Abstract: In the formulae, R represents alkyl; and R , R and X independently represent halogen. The present invention relates to a method for producing 3,4-dihydroxy-3-cyclobutene-1,2-dione of general formula (II) by hydrolyzing 3-alkoxy-2,2,4,4-tetrahalogenocyclobutanone derivative of general formula (I).
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公开(公告)号：DE69706504D1
公开(公告)日：2001-10-11
申请号：DE69706504
申请日：1997-04-02
Applicant: KYOWA YUKA KK
Inventor： SHIMIZU IKUO , USAMI TAKESHI , TOYODA HIROSHI , OKAJIMA ASAKO , MATSUSHITA SHOSHIRO
IPC: C07C45/43 , C07C45/63 , C07C49/517 , C07C49/707
Abstract: In the formulae, R represents alkyl; and R , R and X independently represent halogen. The present invention relates to a method for producing 3,4-dihydroxy-3-cyclobutene-1,2-dione of general formula (II) by hydrolyzing 3-alkoxy-2,2,4,4-tetrahalogenocyclobutanone derivative of general formula (I).
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