DE69404529T3 - Verfahren zur Herstellung von Cyclopentenonen - Google Patents
Verfahren zur Herstellung von CyclopentenonenInfo
- Publication number
- DE69404529T3 DE69404529T3 DE69404529T DE69404529T DE69404529T3 DE 69404529 T3 DE69404529 T3 DE 69404529T3 DE 69404529 T DE69404529 T DE 69404529T DE 69404529 T DE69404529 T DE 69404529T DE 69404529 T3 DE69404529 T3 DE 69404529T3
- Authority
- DE
- Germany
- Prior art keywords
- cyclopentenones
- preparation
- 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
- 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
- C07C45/65—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 splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups
- C07C45/66—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 splitting-off hydrogen atoms or functional groups; by hydrogenolysis of functional groups by dehydration
-
- 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
- C07C49/597—Unsaturated compounds containing a keto groups being part of a ring of a five-membered ring
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/016,447 US5276199A (en) | 1993-02-11 | 1993-02-11 | Process for preparing cyclopentenones |
Publications (3)
Publication Number | Publication Date |
---|---|
DE69404529D1 DE69404529D1 (de) | 1997-09-04 |
DE69404529T2 DE69404529T2 (de) | 1997-12-04 |
DE69404529T3 true DE69404529T3 (de) | 2001-02-01 |
Family
ID=21777168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69404529T Expired - Lifetime DE69404529T3 (de) | 1993-02-11 | 1994-02-10 | Verfahren zur Herstellung von Cyclopentenonen |
Country Status (5)
Country | Link |
---|---|
US (1) | US5276199A (de) |
EP (1) | EP0621253B2 (de) |
JP (1) | JP3553118B2 (de) |
CA (1) | CA2113322C (de) |
DE (1) | DE69404529T3 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5276199A (en) * | 1993-02-11 | 1994-01-04 | Ethyl Corporation | Process for preparing cyclopentenones |
US5939347A (en) * | 1995-01-25 | 1999-08-17 | W.R. Grace & Co. -Conn. | Supported catalytic activator |
US5763664A (en) * | 1995-12-01 | 1998-06-09 | Albemarle Corporation | Process for preparing cyclopentenones |
KR19980080082A (ko) * | 1997-03-10 | 1998-11-25 | 김용구 | 초임계 유체를 반응용매로 하는 시클로펜테논 유도체의 제조방법 |
KR100614395B1 (ko) * | 2004-05-24 | 2006-08-18 | 주식회사 엘지화학 | 사이클로펜텐온의 제조방법 |
CN105294418B (zh) * | 2015-11-11 | 2017-07-25 | 中国科学院山西煤炭化学研究所 | 一种制备3‑甲基‑2‑环戊烯‑1‑酮的方法 |
CN112028757B (zh) * | 2020-09-08 | 2022-04-05 | 乐威医药(江苏)股份有限公司 | 一种3-甲基-2-环戊烯-1-酮的制备方法 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2387587A (en) † | 1939-01-04 | 1945-10-23 | Hunsdiecker Heinz | Process of manufacturing cyclopentenone derivatives |
DE765015C (de) * | 1939-01-05 | 1952-09-29 | Heinz Hunsdiecker Dr | Verfahren zur Herstellung von aliphatisch substituierten Cyclopentenonen durch Cyclisierung von ª-Diketonen (2, 5-Diketonen) |
CH566953A5 (de) * | 1972-04-07 | 1975-09-30 | Givaudan & Cie Sa | |
JPS52122344A (en) * | 1976-04-05 | 1977-10-14 | Tatsuya Shiyouno | Process for manufacture of cyclopentenone derivatives |
IT1170704B (it) * | 1981-02-11 | 1987-06-03 | Giovanni Piancatelli | Procedimento per la sintesi di derivati del 3-chetociclopentene-5-ossi ad attivita' insetticida |
US5026919A (en) * | 1985-12-20 | 1991-06-25 | Mobil Oil Corporation | Base-catalyzed reactions using zeolite catalysts |
US5276199A (en) * | 1993-02-11 | 1994-01-04 | Ethyl Corporation | Process for preparing cyclopentenones |
-
1993
- 1993-02-11 US US08/016,447 patent/US5276199A/en not_active Expired - Lifetime
-
1994
- 1994-01-12 CA CA002113322A patent/CA2113322C/en not_active Expired - Lifetime
- 1994-02-08 JP JP03429494A patent/JP3553118B2/ja not_active Expired - Lifetime
- 1994-02-10 EP EP94102058A patent/EP0621253B2/de not_active Expired - Lifetime
- 1994-02-10 DE DE69404529T patent/DE69404529T3/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0621253A2 (de) | 1994-10-26 |
DE69404529T2 (de) | 1997-12-04 |
CA2113322C (en) | 2005-07-26 |
JPH06340571A (ja) | 1994-12-13 |
EP0621253B1 (de) | 1997-07-30 |
JP3553118B2 (ja) | 2004-08-11 |
DE69404529D1 (de) | 1997-09-04 |
US5276199A (en) | 1994-01-04 |
EP0621253B2 (de) | 2000-08-09 |
EP0621253A3 (de) | 1995-02-01 |
CA2113322A1 (en) | 1994-08-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8363 | Opposition against the patent | ||
8366 | Restricted maintained after opposition proceedings |