BE1003309A3 - Procede de conversion d'alpha-alkyl-lactones en alpha-alkylidene-lactones. - Google Patents
Procede de conversion d'alpha-alkyl-lactones en alpha-alkylidene-lactones. Download PDFInfo
- Publication number
- BE1003309A3 BE1003309A3 BE9000199A BE9000199A BE1003309A3 BE 1003309 A3 BE1003309 A3 BE 1003309A3 BE 9000199 A BE9000199 A BE 9000199A BE 9000199 A BE9000199 A BE 9000199A BE 1003309 A3 BE1003309 A3 BE 1003309A3
- Authority
- BE
- Belgium
- Prior art keywords
- alpha
- lactones
- alkylidene
- alkyl
- conversion
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D315/00—Heterocyclic compounds containing rings having one oxygen atom as the only ring hetero atom according to more than one of groups C07D303/00 - C07D313/00
-
- 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
- C07D307/58—One oxygen atom, e.g. butenolide
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D309/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
- C07D309/32—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having two double bonds between ring members or between ring members and non-ring members
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Furan Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Pyrane Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31511089A | 1989-02-24 | 1989-02-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
BE1003309A3 true BE1003309A3 (fr) | 1992-02-25 |
Family
ID=23222934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE9000199A BE1003309A3 (fr) | 1989-02-24 | 1990-02-23 | Procede de conversion d'alpha-alkyl-lactones en alpha-alkylidene-lactones. |
Country Status (7)
Country | Link |
---|---|
JP (1) | JPH02273668A (ja) |
BE (1) | BE1003309A3 (ja) |
DE (1) | DE4005516A1 (ja) |
FR (1) | FR2643636A1 (ja) |
GB (1) | GB2228482B (ja) |
IT (1) | IT9067139A1 (ja) |
NL (1) | NL9000444A (ja) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5416224A (en) * | 1989-02-24 | 1995-05-16 | Henkel Corporation | Process for converting α-acyl-substituted lactones to α-alkylidene-substituted lactones |
US6046185A (en) | 1996-07-11 | 2000-04-04 | Inflazyme Pharmaceuticals Ltd. | 6,7-oxygenated steroids and uses related thereto |
US6770658B2 (en) | 1998-09-09 | 2004-08-03 | Inflazyme Pharmaceuticals Ltd. | Substituted γ-phenyl-Δ-lactams and uses related thereto |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0246581A2 (de) * | 1986-05-22 | 1987-11-25 | BASF Aktiengesellschaft | Verfahren zur Herstellung von alpha-substituierten gamma-Butyrolactonen |
-
1990
- 1990-02-22 DE DE4005516A patent/DE4005516A1/de not_active Withdrawn
- 1990-02-23 NL NL9000444A patent/NL9000444A/nl not_active Application Discontinuation
- 1990-02-23 JP JP2044310A patent/JPH02273668A/ja active Pending
- 1990-02-23 BE BE9000199A patent/BE1003309A3/fr not_active IP Right Cessation
- 1990-02-23 IT IT067139A patent/IT9067139A1/it unknown
- 1990-02-23 GB GB9004143A patent/GB2228482B/en not_active Expired - Fee Related
- 1990-02-26 FR FR9002351A patent/FR2643636A1/fr not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0246581A2 (de) * | 1986-05-22 | 1987-11-25 | BASF Aktiengesellschaft | Verfahren zur Herstellung von alpha-substituierten gamma-Butyrolactonen |
Non-Patent Citations (3)
Title |
---|
CHEMICAL ABSTRACTS, vol. 78, no. 21, 28 mai 1973, page 354, abrégé no. 135970x, Columbus, Ohio, US; V.M. DASHUNIN et al.: "Synthesis of substituted lactones, their odor, and some transformations", & MEZHDUNAR. KONGR. EFIRNYM MASLAM, ÄMATER,Ü, 4TH 1968 (PUB. 1971), 1, 90-7 * |
JOURNAL OF ORGANIC CHEMISTRY, vol. 42, no. 7, 1977, pages 1180-1185; G.M. KSANDER et al.: "A method for the synthesis of unsaturated carbonyl compounds" * |
TETRAHEDRON LETTERS, no. 39, 1978, pages 3753-3756; Y. UENO et al.: "Deacylative condensation I. A new facile method for the direct alpha-methylenation of ester or lactone starting from monosubstituted active methylene compounds" * |
Also Published As
Publication number | Publication date |
---|---|
FR2643636A1 (fr) | 1990-08-31 |
DE4005516A1 (de) | 1990-08-30 |
IT9067139A1 (it) | 1990-08-25 |
GB2228482B (en) | 1992-08-12 |
GB9004143D0 (en) | 1990-04-18 |
IT9067139A0 (it) | 1990-02-23 |
GB2228482A (en) | 1990-08-29 |
JPH02273668A (ja) | 1990-11-08 |
NL9000444A (nl) | 1990-09-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE | Patent lapsed |
Owner name: HENKEL CORP. Effective date: 19930228 |