DE69706504D1 - Verfahren zur herstellung von 3,4-dihydroxy-3-cyclobuten-1,2-dion - Google Patents
Verfahren zur herstellung von 3,4-dihydroxy-3-cyclobuten-1,2-dionInfo
- Publication number
- DE69706504D1 DE69706504D1 DE69706504T DE69706504T DE69706504D1 DE 69706504 D1 DE69706504 D1 DE 69706504D1 DE 69706504 T DE69706504 T DE 69706504T DE 69706504 T DE69706504 T DE 69706504T DE 69706504 D1 DE69706504 D1 DE 69706504D1
- Authority
- DE
- Germany
- Prior art keywords
- dihydroxy
- producing
- cyclobuten
- dion
- general formula
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
- C07C49/703—Unsaturated compounds containing a keto groups being part of a ring containing hydroxy groups
- C07C49/707—Unsaturated compounds containing a keto groups being part of a ring containing hydroxy groups a keto group being part of a three- to five-membered ring
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/42—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by hydrolysis
- C07C45/43—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by hydrolysis of >CX2 groups, X being halogen
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
- C07C45/61—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups
- C07C45/63—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by reactions not involving the formation of >C = O groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/385—Saturated compounds containing a keto group being part of a ring
- C07C49/517—Saturated compounds containing a keto group being part of a ring containing ether groups, groups, groups, or groups
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C49/00—Ketones; Ketenes; Dimeric ketenes; Ketonic chelates
- C07C49/587—Unsaturated compounds containing a keto groups being part of a ring
- C07C49/593—Unsaturated compounds containing a keto groups being part of a ring of a three- or four-membered ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP8641096 | 1996-04-09 | ||
PCT/JP1997/001133 WO1997037961A1 (fr) | 1996-04-09 | 1997-04-02 | Procede de preparation de 3,4-dihydroxy-3-cyclobutene-1,2-dione |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69706504D1 true DE69706504D1 (de) | 2001-10-11 |
DE69706504T2 DE69706504T2 (de) | 2002-04-25 |
Family
ID=13886106
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69706504T Expired - Lifetime DE69706504T2 (de) | 1996-04-09 | 1997-04-02 | Verfahren zur herstellung von 3,4-dihydroxy-3-cyclobuten-1,2-dion |
Country Status (10)
Country | Link |
---|---|
US (1) | US5808166A (de) |
EP (1) | EP0842919B1 (de) |
JP (1) | JP4003817B2 (de) |
KR (1) | KR100468288B1 (de) |
CN (2) | CN1074760C (de) |
AT (1) | ATE205178T1 (de) |
AU (1) | AU705093B2 (de) |
CA (1) | CA2223772C (de) |
DE (1) | DE69706504T2 (de) |
WO (1) | WO1997037961A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1134393C (zh) | 1997-09-05 | 2004-01-14 | 协和油化株式会社 | 3,4-二羟基-3-环丁烯-1,2-二酮的制备方法 |
JP5917274B2 (ja) * | 2011-04-28 | 2016-05-11 | 国立大学法人九州大学 | ヒドロゲル化剤 |
CN103980106A (zh) * | 2014-04-15 | 2014-08-13 | 西北大学 | 一种合成单甲基环丁烯二酮的方法 |
CN115710169B (zh) * | 2022-11-18 | 2024-05-28 | 北京成宇化工有限公司 | 一种方酸的制备方法 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0820734B2 (ja) * | 1988-08-11 | 1996-03-04 | 富士写真フイルム株式会社 | 感光性組成物及びそれを用いた光重合性組成物 |
EP0379200A3 (de) * | 1989-01-19 | 1991-11-13 | Mitsubishi Kasei Corporation | Photopolymerisierbare Zusammensetzung |
JPH02306247A (ja) * | 1989-01-19 | 1990-12-19 | Mitsubishi Kasei Corp | 光重合性組成物 |
IE64516B1 (en) * | 1990-02-12 | 1995-08-09 | Lonza Ag | A process for the preparation of quadratic acid |
JP2604270B2 (ja) * | 1990-08-24 | 1997-04-30 | 靖二 中島 | 棒状装薬方式による安全装薬量決定方法 |
JP2988756B2 (ja) * | 1991-04-26 | 1999-12-13 | 協和醗酵工業株式会社 | 光重合開始剤およびこれを含有する光重合性組成物 |
JP3167376B2 (ja) * | 1991-10-03 | 2001-05-21 | 株式会社ジャパンエナジー | 芳香族炭化水素製造用触媒およびその製造方法並びにその触媒を用いた芳香族炭化水素の製造方法 |
DE69329130T2 (de) * | 1992-04-24 | 2001-03-29 | Ricoh Kk | Squaryliumverbindungen und diese benutzende optische Informationsaufzeichnungsmittel |
-
1997
- 1997-04-02 EP EP97915678A patent/EP0842919B1/de not_active Expired - Lifetime
- 1997-04-02 CN CN97190331A patent/CN1074760C/zh not_active Expired - Fee Related
- 1997-04-02 DE DE69706504T patent/DE69706504T2/de not_active Expired - Lifetime
- 1997-04-02 AT AT97915678T patent/ATE205178T1/de active
- 1997-04-02 CA CA002223772A patent/CA2223772C/en not_active Expired - Fee Related
- 1997-04-02 AU AU23066/97A patent/AU705093B2/en not_active Ceased
- 1997-04-02 JP JP53604397A patent/JP4003817B2/ja not_active Expired - Fee Related
- 1997-04-02 WO PCT/JP1997/001133 patent/WO1997037961A1/ja active IP Right Grant
- 1997-04-02 CN CNB011033584A patent/CN1169770C/zh not_active Expired - Fee Related
- 1997-04-02 KR KR1019970709150A patent/KR100468288B1/ko not_active IP Right Cessation
- 1997-04-02 US US08/973,157 patent/US5808166A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
WO1997037961A1 (fr) | 1997-10-16 |
ATE205178T1 (de) | 2001-09-15 |
CA2223772C (en) | 2006-01-10 |
CN1169770C (zh) | 2004-10-06 |
JP4003817B2 (ja) | 2007-11-07 |
DE69706504T2 (de) | 2002-04-25 |
EP0842919A4 (de) | 1999-02-03 |
CN1188469A (zh) | 1998-07-22 |
KR19990022708A (ko) | 1999-03-25 |
CN1074760C (zh) | 2001-11-14 |
EP0842919A1 (de) | 1998-05-20 |
CN1317474A (zh) | 2001-10-17 |
AU705093B2 (en) | 1999-05-13 |
US5808166A (en) | 1998-09-15 |
AU2306697A (en) | 1997-10-29 |
KR100468288B1 (ko) | 2005-04-20 |
EP0842919B1 (de) | 2001-09-05 |
CA2223772A1 (en) | 1997-10-16 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition |