IN155645B - - Google Patents
Info
- Publication number
- IN155645B IN155645B IN722/CAL/82A IN722CA1982A IN155645B IN 155645 B IN155645 B IN 155645B IN 722CA1982 A IN722CA1982 A IN 722CA1982A IN 155645 B IN155645 B IN 155645B
- Authority
- IN
- India
- Prior art keywords
- ester
- acid
- cyclizing
- tertiary
- butoxyacetoacetic
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/02—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
- C07D307/34—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members
- C07D307/56—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having two or three double bonds between ring members or between ring members and non-ring members with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D307/60—Two oxygen atoms, e.g. succinic anhydride
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH3982/81A CH649996A5 (de) | 1981-06-17 | 1981-06-17 | Verfahren zur herstellung von tetronsaeure. |
Publications (1)
Publication Number | Publication Date |
---|---|
IN155645B true IN155645B (es) | 1985-02-16 |
Family
ID=4267588
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IN722/CAL/82A IN155645B (es) | 1981-06-17 | 1982-06-21 |
Country Status (12)
Country | Link |
---|---|
US (1) | US4414400A (es) |
EP (1) | EP0067408B1 (es) |
JP (1) | JPS58971A (es) |
AT (1) | ATE12391T1 (es) |
CA (1) | CA1182830A (es) |
CH (1) | CH649996A5 (es) |
DD (1) | DD202558A5 (es) |
DE (1) | DE3262771D1 (es) |
HU (1) | HU186530B (es) |
IL (1) | IL65998A (es) |
IN (1) | IN155645B (es) |
SU (1) | SU1220567A3 (es) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH658056A5 (de) * | 1984-02-09 | 1986-10-15 | Lonza Ag | Verfahren zur herstellung von tetronsaeure. |
EP0358128B1 (de) * | 1988-09-06 | 1995-06-28 | Lonza Ag | Verfahren zur Herstellung von 5-Alkyltetramsäuren |
JP2010070460A (ja) * | 2008-09-16 | 2010-04-02 | Daicel Chem Ind Ltd | テトロン酸の製造方法 |
CN106008419B (zh) * | 2016-06-15 | 2022-02-15 | 上海丸全化学科技有限公司 | 一种季酮酸的合成工艺 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH503722A (de) | 1969-05-28 | 1971-02-28 | Lonza Ag | Verfahren zur Herstellung von Tetronsäure |
CH529128A (de) | 1970-09-04 | 1972-10-15 | Lonza Ag | Verfahren zur Herstellung von Tetronsäure |
DE2413709A1 (de) * | 1973-03-26 | 1975-10-02 | Peter Stassen | Bauspiel |
EP0018162A1 (en) * | 1979-04-11 | 1980-10-29 | DAVY McKEE (LONDON) LIMITED | Production of butyrolactone |
-
1981
- 1981-06-17 CH CH3982/81A patent/CH649996A5/de not_active IP Right Cessation
-
1982
- 1982-06-07 IL IL8265998A patent/IL65998A/xx unknown
- 1982-06-08 DE DE8282105031T patent/DE3262771D1/de not_active Expired
- 1982-06-08 EP EP82105031A patent/EP0067408B1/de not_active Expired
- 1982-06-08 AT AT82105031T patent/ATE12391T1/de not_active IP Right Cessation
- 1982-06-14 US US06/388,432 patent/US4414400A/en not_active Expired - Fee Related
- 1982-06-15 SU SU823451243A patent/SU1220567A3/ru active
- 1982-06-16 CA CA000405284A patent/CA1182830A/en not_active Expired
- 1982-06-16 DD DD82240794A patent/DD202558A5/de unknown
- 1982-06-16 JP JP57103675A patent/JPS58971A/ja active Pending
- 1982-06-17 HU HU821975A patent/HU186530B/hu unknown
- 1982-06-21 IN IN722/CAL/82A patent/IN155645B/en unknown
Also Published As
Publication number | Publication date |
---|---|
DD202558A5 (de) | 1983-09-21 |
EP0067408B1 (de) | 1985-03-27 |
CH649996A5 (de) | 1985-06-28 |
US4414400A (en) | 1983-11-08 |
CA1182830A (en) | 1985-02-19 |
ATE12391T1 (de) | 1985-04-15 |
EP0067408A1 (de) | 1982-12-22 |
HU186530B (en) | 1985-08-28 |
SU1220567A3 (ru) | 1986-03-23 |
JPS58971A (ja) | 1983-01-06 |
IL65998A (en) | 1985-02-28 |
IL65998A0 (en) | 1982-09-30 |
DE3262771D1 (en) | 1985-05-02 |
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