IE45645B1 - Process for the preparation of 6-alkoxy and 6-acyloxy-4-halo-2h-pyrones and their use in the synthesis of gamma-pyrones - Google Patents
Process for the preparation of 6-alkoxy and 6-acyloxy-4-halo-2h-pyrones and their use in the synthesis of gamma-pyronesInfo
- Publication number
- IE45645B1 IE45645B1 IE587/79A IE58779A IE45645B1 IE 45645 B1 IE45645 B1 IE 45645B1 IE 587/79 A IE587/79 A IE 587/79A IE 58779 A IE58779 A IE 58779A IE 45645 B1 IE45645 B1 IE 45645B1
- Authority
- IE
- Ireland
- Prior art keywords
- carbon atoms
- alkyl
- formula
- hydrogen
- phenyl
- Prior art date
Links
Classifications
-
- 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
-
- 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
- C07D309/34—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members
- C07D309/36—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings having three or more double bonds between ring members or between ring members and non-ring members with oxygen atoms directly attached to ring carbon atoms
- C07D309/40—Oxygen atoms attached in positions 3 and 4, e.g. maltol
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Pyrane Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pyridine Compounds (AREA)
- Cosmetics (AREA)
- Saccharide Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Furan Compounds (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Picture Signal Circuits (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Processing Of Color Television Signals (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Seasonings (AREA)
- Control Of El Displays (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US71090176A | 1976-08-02 | 1976-08-02 | |
| US05/721,885 US4082717A (en) | 1976-08-02 | 1976-09-09 | Preparation of gamma-pyrones |
| IE1587/77A IE45641B1 (en) | 1976-08-02 | 1977-07-29 | Process for the preparation of gamma-pyrones |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| IE790587L IE790587L (en) | 1978-02-02 |
| IE45645B1 true IE45645B1 (en) | 1982-10-20 |
Family
ID=27108548
Family Applications (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE587/79A IE45645B1 (en) | 1976-08-02 | 1977-07-29 | Process for the preparation of 6-alkoxy and 6-acyloxy-4-halo-2h-pyrones and their use in the synthesis of gamma-pyrones |
| IE585/79A IE45643B1 (en) | 1976-08-02 | 1977-07-29 | Process for the preparation of 6,6'-oxy bis (4-halo-2h-pyran-3(6h)-ones) and their use in preparing gamma-pyrones |
| IE1587/77A IE45641B1 (en) | 1976-08-02 | 1977-07-29 | Process for the preparation of gamma-pyrones |
| IE586/79A IE45644B1 (en) | 1976-08-02 | 1977-07-29 | Process for the preparation of 4-halo-6-hydroxy-2h-pyran-3(6h)-ones and their use in the synthesis of gamma-pyrones |
| IE584/79A IE45642B1 (en) | 1976-08-02 | 1977-07-29 | Process for the preparation of 6-hydroxy-2h-pyran-3(6h)-ones useful in the synthesis of gamma-pyrones |
Family Applications After (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IE585/79A IE45643B1 (en) | 1976-08-02 | 1977-07-29 | Process for the preparation of 6,6'-oxy bis (4-halo-2h-pyran-3(6h)-ones) and their use in preparing gamma-pyrones |
| IE1587/77A IE45641B1 (en) | 1976-08-02 | 1977-07-29 | Process for the preparation of gamma-pyrones |
| IE586/79A IE45644B1 (en) | 1976-08-02 | 1977-07-29 | Process for the preparation of 4-halo-6-hydroxy-2h-pyran-3(6h)-ones and their use in the synthesis of gamma-pyrones |
| IE584/79A IE45642B1 (en) | 1976-08-02 | 1977-07-29 | Process for the preparation of 6-hydroxy-2h-pyran-3(6h)-ones useful in the synthesis of gamma-pyrones |
Country Status (36)
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA1095921A (en) * | 1976-08-02 | 1981-02-17 | Thomas M. Brennan | Preparation of gamma-pyrones |
| JPS5444675A (en) * | 1977-09-12 | 1979-04-09 | Shin Etsu Chem Co Ltd | Production of 3-hydroxy-4-pyrone analog |
| FR2402654A1 (fr) * | 1977-09-12 | 1979-04-06 | Shinetsu Chemical Co | Nouveaux derives de x tetrahydropyrannone(5) |
| JPS5741226U (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1980-08-20 | 1982-03-05 | ||
| JPS59135008U (ja) * | 1983-02-28 | 1984-09-10 | 松下電工株式会社 | 分電盤装置 |
| JPS6050245A (ja) * | 1983-08-29 | 1985-03-19 | Nissan Motor Co Ltd | 内燃機関の燃料噴射装置 |
| JPH0226945Y2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1985-09-11 | 1990-07-20 | ||
| JP2586607B2 (ja) * | 1987-10-30 | 1997-03-05 | 日産化学工業株式会社 | 光学活性アルコールの製造法 |
| CN101679263B (zh) * | 2007-03-28 | 2014-01-15 | 阿普泰克斯科技公司 | 去铁酮的氟化衍生物 |
| AU2008355464C1 (en) | 2008-04-25 | 2014-11-20 | Chiesi Farmaceutici S.P.A. | Liquid formulation for deferiprone with palatable taste |
| US9073865B2 (en) | 2009-07-03 | 2015-07-07 | Apotex Technologies Inc. | Fluorinated derivates of 3-hydroxypyridin-4-ones |
| WO2017168309A1 (en) * | 2016-03-29 | 2017-10-05 | Dr. Reddy’S Laboratories Limited | Process for preparation of eribulin and intermediates thereof |
| CN108609456B (zh) * | 2016-12-13 | 2021-03-12 | 奥的斯电梯公司 | 可打开扩展面板及具有其的电梯吊顶，轿厢和系统 |
| CN111606879A (zh) * | 2020-05-25 | 2020-09-01 | 安徽金禾实业股份有限公司 | 一锅法制备2-羟甲基-3-烷氧基-4h-吡喃-4-酮的方法 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3491122A (en) * | 1966-09-14 | 1970-01-20 | Monsanto Co | Synthesis of 4-pyrones |
| US3547912A (en) * | 1968-07-29 | 1970-12-15 | American Home Prod | Derivatives of 2h-pyran-3(6h)-ones and preparation thereof |
| JPS5145565B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1968-10-12 | 1976-12-04 | ||
| US3621063A (en) * | 1968-12-24 | 1971-11-16 | Monsanto Co | Unsaturated acyclic ketones |
| US3832357A (en) * | 1971-05-26 | 1974-08-27 | Daicel Ltd | Process for preparation of 3-hydroxy-2-alkyl-4-pyrone |
| JPS5212166A (en) * | 1975-07-17 | 1977-01-29 | Tatsuya Shono | Process for preparation of 4-pyron derivatives |
| IE42789B1 (en) * | 1975-08-28 | 1980-10-22 | Pfizer | Preparation of gamma-pyrones |
| CA1095921A (en) * | 1976-08-02 | 1981-02-17 | Thomas M. Brennan | Preparation of gamma-pyrones |
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1977
- 1977-06-06 CA CA279,922A patent/CA1095921A/en not_active Expired
- 1977-06-08 NZ NZ184342A patent/NZ184342A/xx unknown
- 1977-06-09 GR GR53666A patent/GR68938B/el unknown
- 1977-06-13 YU YU1469/77A patent/YU40166B/xx unknown
- 1977-06-15 MX MX775807U patent/MX4597E/es unknown
- 1977-06-16 SE SE7707035A patent/SE433079B/xx not_active IP Right Cessation
- 1977-06-16 JP JP7157277A patent/JPS5318578A/ja active Granted
- 1977-06-17 PH PH19887A patent/PH13557A/en unknown
- 1977-06-20 BR BR7703970A patent/BR7703970A/pt unknown
- 1977-06-21 BE BE1008209A patent/BE855965A/xx not_active IP Right Cessation
- 1977-06-21 NL NLAANVRAGE7706811,A patent/NL170955C/xx not_active IP Right Cessation
- 1977-06-21 FI FI771934A patent/FI72722C/fi not_active IP Right Cessation
- 1977-06-22 NO NO772193A patent/NO150561C/no unknown
- 1977-06-22 LU LU77600A patent/LU77600A1/xx unknown
- 1977-06-22 AT AT0440477A patent/AT362790B/de not_active IP Right Cessation
- 1977-06-22 TR TR19652A patent/TR19652A/xx unknown
- 1977-06-22 DK DK276177A patent/DK153483C/da active
- 1977-06-22 EG EG371/77A patent/EG13080A/xx active
- 1977-06-22 CH CH765877A patent/CH625798A5/fr not_active IP Right Cessation
- 1977-06-22 DE DE2760221A patent/DE2760221C2/de not_active Expired
- 1977-06-22 DE DE2728499A patent/DE2728499C2/de not_active Expired
- 1977-06-22 DE DE2760220A patent/DE2760220C2/de not_active Expired
- 1977-06-22 ES ES459994A patent/ES459994A1/es not_active Expired
- 1977-06-22 PT PT66694A patent/PT66694B/pt unknown
- 1977-06-23 FR FR7719250A patent/FR2372821A1/fr active Granted
- 1977-06-23 AR AR268164A patent/AR216080A1/es active
- 1977-06-23 IT IT49950/77A patent/IT1106258B/it active
- 1977-06-23 DD DD7700199657A patent/DD132494A5/xx not_active IP Right Cessation
- 1977-07-14 BG BG7742606A patent/BG28988A4/xx unknown
- 1977-07-14 BG BG7942607A patent/BG28989A4/xx unknown
- 1977-07-14 BG BG042608A patent/BG29136A3/xx unknown
- 1977-07-14 BG BG036892A patent/BG28849A3/xx unknown
- 1977-07-14 CS CS774705A patent/CS203921B2/cs unknown
- 1977-07-20 RO RO7799830A patent/RO78953A/ro unknown
- 1977-07-20 RO RO7791106A patent/RO74367A/ro unknown
- 1977-07-20 RO RO7799825A patent/RO78951A2/ro unknown
- 1977-07-20 RO RO7799826A patent/RO78952A/ro unknown
- 1977-07-21 PL PL1977215006A patent/PL115497B1/pl unknown
- 1977-07-21 PL PL1977215007A patent/PL115496B1/pl unknown
- 1977-07-21 SU SU772508256A patent/SU955859A3/ru active
- 1977-07-21 GB GB4241/78A patent/GB1538373A/en not_active Expired
- 1977-07-21 HU HU82157A patent/HU185687B/hu unknown
- 1977-07-21 GB GB30759/77A patent/GB1538371A/en not_active Expired
- 1977-07-21 HU HU82156A patent/HU186026B/hu unknown
- 1977-07-21 PL PL1977199798A patent/PL115586B1/pl unknown
- 1977-07-21 HU HU77PI584A patent/HU180040B/hu unknown
- 1977-07-21 GB GB4242/78A patent/GB1538374A/en not_active Expired
- 1977-07-21 HU HU82155A patent/HU185686B/hu unknown
- 1977-07-21 GB GB4240/78A patent/GB1538372A/en not_active Expired
- 1977-07-21 PL PL21500877A patent/PL215008A1/xx unknown
- 1977-07-21 GB GB4243/78A patent/GB1538375A/en not_active Expired
- 1977-07-29 IE IE587/79A patent/IE45645B1/en not_active IP Right Cessation
- 1977-07-29 IE IE585/79A patent/IE45643B1/en not_active IP Right Cessation
- 1977-07-29 IE IE1587/77A patent/IE45641B1/en not_active IP Right Cessation
- 1977-07-29 IE IE586/79A patent/IE45644B1/en not_active IP Right Cessation
- 1977-07-29 IE IE584/79A patent/IE45642B1/en not_active IP Right Cessation
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1978
- 1978-02-03 PH PH20745A patent/PH15185A/en unknown
- 1978-02-03 PH PH20746A patent/PH13926A/en unknown
- 1978-05-25 JP JP6282178A patent/JPS5436270A/ja active Granted
- 1978-05-25 JP JP6282278A patent/JPS5436271A/ja active Granted
- 1978-05-25 JP JP6281778A patent/JPS5436266A/ja active Pending
- 1978-05-25 JP JP6281878A patent/JPS5436267A/ja active Granted
- 1978-05-25 JP JP6281978A patent/JPS5436268A/ja active Pending
- 1978-05-25 JP JP53062820A patent/JPS5814433B2/ja not_active Expired
- 1978-06-07 CS CS783705A patent/CS203922B2/cs unknown
- 1978-06-07 CS CS783706A patent/CS203923B2/cs unknown
- 1978-06-13 ES ES470746A patent/ES470746A1/es not_active Expired
- 1978-06-13 ES ES470744A patent/ES470744A1/es not_active Expired
- 1978-06-13 ES ES470743A patent/ES470743A1/es not_active Expired
- 1978-06-13 ES ES470745A patent/ES470745A1/es not_active Expired
- 1978-07-05 SU SU782631651A patent/SU1015826A3/ru active
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1979
- 1979-02-01 PH PH22150A patent/PH13874A/en unknown
- 1979-02-01 PH PH22149A patent/PH14625A/en unknown
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1980
- 1980-03-06 AT AT0124380A patent/AT364356B/de not_active IP Right Cessation
- 1980-03-06 AT AT0124480A patent/AT363470B/de not_active IP Right Cessation
- 1980-10-24 CA CA000363274A patent/CA1117541A/en not_active Expired
- 1980-10-24 CA CA363,273A patent/CA1110254A/en not_active Expired
- 1980-10-30 CH CH808580A patent/CH625235A5/fr not_active IP Right Cessation
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1981
- 1981-02-20 CH CH116181A patent/CH626358A5/fr not_active IP Right Cessation
- 1981-02-20 CH CH116081A patent/CH626357A5/fr not_active IP Right Cessation
- 1981-07-02 HK HK306/81A patent/HK30681A/xx unknown
- 1981-07-02 HK HK303/81A patent/HK30381A/en unknown
- 1981-07-02 HK HK305/81A patent/HK30581A/xx unknown
- 1981-07-02 HK HK307/81A patent/HK30781A/xx unknown
- 1981-07-02 HK HK304/81A patent/HK30481A/xx unknown
- 1981-12-09 NL NLAANVRAGE8105539,A patent/NL182478C/xx not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105540,A patent/NL182805C/xx not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105537,A patent/NL182476C/xx not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105538,A patent/NL182477C/xx not_active IP Right Cessation
- 1981-12-30 MY MY262/81A patent/MY8100262A/xx unknown
- 1981-12-30 MY MY287/81A patent/MY8100287A/xx unknown
- 1981-12-30 MY MY267/81A patent/MY8100267A/xx unknown
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1982
- 1982-01-29 SE SE8200520A patent/SE444564B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200521A patent/SE452616B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200518A patent/SE445041B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200519A patent/SE445042B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200522A patent/SE444565B/sv not_active IP Right Cessation
- 1982-06-03 NO NO821850A patent/NO821850L/no unknown
- 1982-06-03 NO NO821848A patent/NO150043C/no unknown
- 1982-06-03 NO NO821851A patent/NO150560C/no unknown
- 1982-06-03 NO NO821849A patent/NO150559C/no unknown
- 1982-06-03 NO NO821847A patent/NO150042C/no unknown
- 1982-12-07 YU YU02703/82A patent/YU270382A/xx unknown
- 1982-12-13 YU YU2747/82A patent/YU42613B/xx unknown
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1983
- 1983-05-16 FI FI831700A patent/FI72119C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831701A patent/FI72723C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831702A patent/FI72720C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831704A patent/FI72721C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831703A patent/FI73424C/fi not_active IP Right Cessation
- 1983-08-08 YU YU1663/83A patent/YU43190B/xx unknown
- 1983-11-18 NO NO834236A patent/NO151365C/no unknown
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1986
- 1986-07-09 DK DK326086A patent/DK153401C/da not_active IP Right Cessation
- 1986-07-09 DK DK326186A patent/DK154079C/da active
- 1986-07-09 DK DK325986A patent/DK153484C/da active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MK9A | Patent expired |