RO78951A2 - Procedeu pentru prepararea unor 6-hidroxi-2h-piran-3(6h)-one - Google Patents
Procedeu pentru prepararea unor 6-hidroxi-2h-piran-3(6h)-oneInfo
- Publication number
- RO78951A2 RO78951A2 RO7799825A RO9982577A RO78951A2 RO 78951 A2 RO78951 A2 RO 78951A2 RO 7799825 A RO7799825 A RO 7799825A RO 9982577 A RO9982577 A RO 9982577A RO 78951 A2 RO78951 A2 RO 78951A2
- Authority
- RO
- Romania
- Prior art keywords
- pyran
- hydroxy
- ones
- preparation
- 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
- Organic Chemistry (AREA)
- Chemical & Material Sciences (AREA)
- Pyrane Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Pyridine Compounds (AREA)
- Cosmetics (AREA)
- Plural Heterocyclic Compounds (AREA)
- Saccharide Compounds (AREA)
- Furan Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Picture Signal Circuits (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Processing Of Color Television Signals (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Seasonings (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
Applications Claiming Priority (2)
| 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 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RO78951A2 true RO78951A2 (ro) | 1982-04-12 |
Family
ID=27108548
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO7799825A RO78951A2 (ro) | 1976-08-02 | 1977-07-20 | Procedeu pentru prepararea unor 6-hidroxi-2h-piran-3(6h)-one |
| RO7799830A RO78953A (ro) | 1976-08-02 | 1977-07-20 | Procedeu pentru prepararea unor 4-halo-6-hidroxi-2h-piran-3(6h)-onelor |
| RO7791106A RO74367A (ro) | 1976-08-02 | 1977-07-20 | Procedeu de preparare a gama-pironelor |
| RO7799826A RO78952A (ro) | 1976-08-02 | 1977-07-20 | Procedeu pentru prepararea unor gama-pirone |
Family Applications After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RO7799830A RO78953A (ro) | 1976-08-02 | 1977-07-20 | Procedeu pentru prepararea unor 4-halo-6-hidroxi-2h-piran-3(6h)-onelor |
| RO7791106A RO74367A (ro) | 1976-08-02 | 1977-07-20 | Procedeu de preparare a gama-pironelor |
| RO7799826A RO78952A (ro) | 1976-08-02 | 1977-07-20 | Procedeu pentru prepararea unor gama-pirone |
Country Status (36)
| Country | Link |
|---|---|
| JP (7) | JPS5318578A (nl) |
| AR (1) | AR216080A1 (nl) |
| AT (3) | AT362790B (nl) |
| BE (1) | BE855965A (nl) |
| BG (4) | BG28989A4 (nl) |
| BR (1) | BR7703970A (nl) |
| CA (3) | CA1095921A (nl) |
| CH (4) | CH625798A5 (nl) |
| CS (3) | CS203921B2 (nl) |
| DD (1) | DD132494A5 (nl) |
| DE (3) | DE2728499C2 (nl) |
| DK (4) | DK153483C (nl) |
| EG (1) | EG13080A (nl) |
| ES (5) | ES459994A1 (nl) |
| FI (6) | FI72722C (nl) |
| FR (1) | FR2372821A1 (nl) |
| GB (5) | GB1538372A (nl) |
| GR (1) | GR68938B (nl) |
| HK (5) | HK30581A (nl) |
| HU (4) | HU185686B (nl) |
| IE (5) | IE45644B1 (nl) |
| IT (1) | IT1106258B (nl) |
| LU (1) | LU77600A1 (nl) |
| MX (1) | MX4597E (nl) |
| MY (3) | MY8100287A (nl) |
| NL (5) | NL170955C (nl) |
| NO (7) | NO150561C (nl) |
| NZ (1) | NZ184342A (nl) |
| PH (5) | PH13557A (nl) |
| PL (4) | PL115497B1 (nl) |
| PT (1) | PT66694B (nl) |
| RO (4) | RO78951A2 (nl) |
| SE (6) | SE433079B (nl) |
| SU (2) | SU955859A3 (nl) |
| TR (1) | TR19652A (nl) |
| YU (4) | YU40166B (nl) |
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 |
| FR2402654A1 (fr) * | 1977-09-12 | 1979-04-06 | Shinetsu Chemical Co | Nouveaux derives de x tetrahydropyrannone(5) |
| JPS5444675A (en) * | 1977-09-12 | 1979-04-09 | Shin Etsu Chem Co Ltd | Production of 3-hydroxy-4-pyrone analog |
| JPS5741226U (nl) * | 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 (nl) * | 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 |
| NZ600874A (en) * | 2007-03-28 | 2013-01-25 | Apotex Technologies Inc | Fluorinated derivatives of deferiprone |
| AP2010005454A0 (en) | 2008-04-25 | 2010-12-31 | Apotex Technologies Inc | Liquid formulation for deferiprone with palatable taste. |
| CN102712591B (zh) | 2009-07-03 | 2014-06-25 | 阿普泰克斯科技公司 | 3-羟基吡啶-4-酮的氟化衍生物 |
| 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 (nl) * | 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 |
-
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 FI FI771934A patent/FI72722C/fi not_active IP Right Cessation
- 1977-06-21 NL NLAANVRAGE7706811,A patent/NL170955C/nl not_active IP Right Cessation
- 1977-06-21 BE BE1008209A patent/BE855965A/xx not_active IP Right Cessation
- 1977-06-22 DE DE2728499A patent/DE2728499C2/de not_active Expired
- 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 DE DE2760221A patent/DE2760221C2/de not_active Expired
- 1977-06-22 LU LU77600A patent/LU77600A1/xx unknown
- 1977-06-22 CH CH765877A patent/CH625798A5/fr not_active IP Right Cessation
- 1977-06-22 ES ES459994A patent/ES459994A1/es not_active Expired
- 1977-06-22 PT PT66694A patent/PT66694B/pt unknown
- 1977-06-22 NO NO772193A patent/NO150561C/no unknown
- 1977-06-22 AT AT0440477A patent/AT362790B/de not_active IP Right Cessation
- 1977-06-22 DE DE2760220A patent/DE2760220C2/de not_active Expired
- 1977-06-23 DD DD7700199657A patent/DD132494A5/xx not_active IP Right Cessation
- 1977-06-23 IT IT49950/77A patent/IT1106258B/it active
- 1977-06-23 AR AR268164A patent/AR216080A1/es active
- 1977-06-23 FR FR7719250A patent/FR2372821A1/fr active Granted
- 1977-07-14 BG BG7942607A patent/BG28989A4/xx unknown
- 1977-07-14 BG BG7742606A patent/BG28988A4/xx unknown
- 1977-07-14 BG BG7736892A patent/BG28849A3/xx unknown
- 1977-07-14 BG BG7942608A patent/BG29136A3/xx unknown
- 1977-07-14 CS CS774705A patent/CS203921B2/cs unknown
- 1977-07-20 RO RO7799825A patent/RO78951A2/ro unknown
- 1977-07-20 RO RO7799830A patent/RO78953A/ro unknown
- 1977-07-20 RO RO7791106A patent/RO74367A/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 GB GB4240/78A patent/GB1538372A/en not_active Expired
- 1977-07-21 PL PL1977199798A patent/PL115586B1/pl unknown
- 1977-07-21 SU SU772508256A patent/SU955859A3/ru active
- 1977-07-21 HU HU82155A patent/HU185686B/hu unknown
- 1977-07-21 HU HU82156A patent/HU186026B/hu unknown
- 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 HU77PI584A patent/HU180040B/hu unknown
- 1977-07-21 GB GB4242/78A patent/GB1538374A/en not_active Expired
- 1977-07-21 GB GB4243/78A patent/GB1538375A/en not_active Expired
- 1977-07-21 GB GB4241/78A patent/GB1538373A/en not_active Expired
- 1977-07-21 PL PL21500877A patent/PL215008A1/xx unknown
- 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
- 1977-07-29 IE IE587/79A patent/IE45645B1/en not_active IP Right Cessation
- 1977-07-29 IE IE1587/77A patent/IE45641B1/en not_active IP Right Cessation
- 1977-07-29 IE IE585/79A patent/IE45643B1/en not_active IP Right Cessation
-
1978
- 1978-02-03 PH PH20745A patent/PH15185A/en unknown
- 1978-02-03 PH PH20746A patent/PH13926A/en unknown
- 1978-05-25 JP JP6281778A patent/JPS5436266A/ja active Pending
- 1978-05-25 JP JP53062820A patent/JPS5814433B2/ja not_active Expired
- 1978-05-25 JP JP6282278A patent/JPS5436271A/ja active Granted
- 1978-05-25 JP JP6282178A patent/JPS5436270A/ja active Granted
- 1978-05-25 JP JP6281878A patent/JPS5436267A/ja active Granted
- 1978-05-25 JP JP6281978A patent/JPS5436268A/ja active Pending
- 1978-06-07 CS CS783706A patent/CS203923B2/cs unknown
- 1978-06-07 CS CS783705A patent/CS203922B2/cs unknown
- 1978-06-13 ES ES470744A patent/ES470744A1/es not_active Expired
- 1978-06-13 ES ES470746A patent/ES470746A1/es not_active Expired
- 1978-06-13 ES ES470745A patent/ES470745A1/es not_active Expired
- 1978-06-13 ES ES470743A patent/ES470743A1/es not_active Expired
- 1978-07-05 SU SU782631651A patent/SU1015826A3/ru active
-
1979
- 1979-02-01 PH PH22149A patent/PH14625A/en unknown
- 1979-02-01 PH PH22150A patent/PH13874A/en unknown
-
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
-
1981
- 1981-02-20 CH CH116081A patent/CH626357A5/fr not_active IP Right Cessation
- 1981-02-20 CH CH116181A patent/CH626358A5/fr not_active IP Right Cessation
- 1981-07-02 HK HK305/81A patent/HK30581A/xx unknown
- 1981-07-02 HK HK304/81A patent/HK30481A/xx unknown
- 1981-07-02 HK HK306/81A patent/HK30681A/xx unknown
- 1981-07-02 HK HK307/81A patent/HK30781A/xx unknown
- 1981-07-02 HK HK303/81A patent/HK30381A/xx unknown
- 1981-12-09 NL NLAANVRAGE8105537,A patent/NL182476C/nl not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105538,A patent/NL182477C/nl not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105540,A patent/NL182805C/nl not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105539,A patent/NL182478C/nl not_active IP Right Cessation
- 1981-12-30 MY MY287/81A patent/MY8100287A/xx unknown
- 1981-12-30 MY MY267/81A patent/MY8100267A/xx unknown
- 1981-12-30 MY MY262/81A patent/MY8100262A/xx unknown
-
1982
- 1982-01-29 SE SE8200519A patent/SE445042B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200518A patent/SE445041B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200521A patent/SE452616B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200522A patent/SE444565B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200520A patent/SE444564B/sv not_active IP Right Cessation
- 1982-06-03 NO NO821851A patent/NO150560C/no unknown
- 1982-06-03 NO NO821850A patent/NO821850L/no unknown
- 1982-06-03 NO NO821849A patent/NO150559C/no unknown
- 1982-06-03 NO NO821847A patent/NO150042C/no unknown
- 1982-06-03 NO NO821848A patent/NO150043C/no unknown
- 1982-12-07 YU YU02703/82A patent/YU270382A/xx unknown
- 1982-12-13 YU YU2747/82A patent/YU42613B/xx unknown
-
1983
- 1983-05-16 FI FI831703A patent/FI73424C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831700A patent/FI72119C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831702A patent/FI72720C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831701A patent/FI72723C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831704A patent/FI72721C/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
-
1986
- 1986-07-09 DK DK326186A patent/DK154079C/da active
- 1986-07-09 DK DK326086A patent/DK153401C/da not_active IP Right Cessation
- 1986-07-09 DK DK325986A patent/DK153484C/da active
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