DE2728499C2 - 4-Halogendihydropyranone, Verfahren zu ihrer Herstellung und ihre Verwendung zur Herstellung von γ-Pyronen - Google Patents
4-Halogendihydropyranone, Verfahren zu ihrer Herstellung und ihre Verwendung zur Herstellung von γ-PyronenInfo
- Publication number
- DE2728499C2 DE2728499C2 DE2728499A DE2728499A DE2728499C2 DE 2728499 C2 DE2728499 C2 DE 2728499C2 DE 2728499 A DE2728499 A DE 2728499A DE 2728499 A DE2728499 A DE 2728499A DE 2728499 C2 DE2728499 C2 DE 2728499C2
- Authority
- DE
- Germany
- Prior art keywords
- maltol
- general formula
- hydroxy
- pyran
- halodihydropyranones
- 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
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)
- Pyridine Compounds (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Cosmetics (AREA)
- Plural Heterocyclic Compounds (AREA)
- Furan Compounds (AREA)
- Saccharide Compounds (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Processing Of Color Television Signals (AREA)
- Picture Signal Circuits (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
- Seasonings (AREA)
Description
X | O | oder | 27 28 | R | 499 | 0 | 0 | |
T | χ | χ | / | |||||
ο T | I | |||||||
R'" | \ | vS | A | \ | ||||
5 ^O | O | R | Λ ) | Λ J | R | |||
/ | ||||||||
HO | ||||||||
s
OH
Tautomerei
65
R |
Zweitlösungs
mittel |
Oxidations-
Temperatur (0C) |
Hydrolyse-
Temperatur (0C) |
Ausbeute
(%) |
CH3 | Methanol | 10 | 100 | 45 |
CHj | Methanol | 5 | 110 | 56 |
CHj | Methanol | - 5 | 104 | 60 |
CHj | Methanol | -10 | 104 | 77 |
CHj | Methanol | -20 | 106 | 62-67 |
CHj | THF | 10 | 105 | 49 |
CHj | Aceton | - 5 | 110 | 36 |
CHj | CH3CN | - 5 | 110 | 29 |
CH3 | EtOAc | 0 | 110 | 26 |
CHj | - | 10 | 110 | 17-30 |
CH3 | Benzol | 10 | 110 | 26 |
CH3 | Methyiisobutylketon | 5 | 110 | 44 |
CH3 | Isopropylalkohol | 0 | 110 | 49 |
CH2CH3 | Methanol | 5 | 110 | 49 |
CH2CH3 | Methanol | -10 | 110 | 58 |
CH2CH3 | THF | 10 | 110 | 47 |
H | Methanol | -10 | 110 | 57 |
CH3 | Methanol | -30 | 110 | 50 |
THF =
EtOAc = |
Tetrahydrofuran
Äthylacetat |
Tabelle 2
CH3 | THF | 20 | 104 | 55 |
CH3 | THF | 27 | 110 | 54 |
CH3 | THF | 15 | 110 | 52 |
CH3 | Isopropyläther | 25 | 110 | 46 |
60 CH3 | Äthyläther | 20 | 110 | 43 |
CH3 | Aceton | 15 | 105 | 47 |
CH3 | CH3OH | 15 | 110 | 32 |
65 CH2CH2 | THF | 16 | 113 | 47 |
H | THF | 20 | 109 | 48 |
R | Zweitlösungs | Oxidations- | Hydrolyse- | Ausbeute |
mittel | Temperatur (0C) | Temperatur (0C) | (%) | |
CH3 | THF | 15 | 75 | 53 |
CH3 | CH3OH | 5 | 105 | 47 |
CH3 | - | 145 | 100 | 30 |
CH2CH3 | THF | 25 | 105 | 47 |
H | THF | 15 | 100 | 45 |
CH3 | THF | 50 | 100 | 20 |
Beispiel 9 |
HO R
4-Brom-6-hydroxy-2-methyl-2H-pyran-3(6H)-on
X | |
/ HO |
o' |
erhalten. | |
{ | |
\ R |
|
X
\ |
{ | |
/ R |
\ A |
\
R |
erhalten. | ||
\ /
O |
||
X
/ |
||
Cl | Beispiel | 21 | 177 | bis | 179 | 0C |
Cl | 132 | bis | 135 | 0C | ||
— | ||||||
Claims (6)
X
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 (2)
Publication Number | Publication Date |
---|---|
DE2728499A1 DE2728499A1 (de) | 1978-02-09 |
DE2728499C2 true DE2728499C2 (de) | 1986-04-03 |
Family
ID=27108548
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2728499A Expired DE2728499C2 (de) | 1976-08-02 | 1977-06-22 | 4-Halogendihydropyranone, Verfahren zu ihrer Herstellung und ihre Verwendung zur Herstellung von γ-Pyronen |
DE2760221A Expired DE2760221C2 (de) | 1976-08-02 | 1977-06-22 | |
DE2760220A Expired DE2760220C2 (de) | 1976-08-02 | 1977-06-22 |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2760221A Expired DE2760221C2 (de) | 1976-08-02 | 1977-06-22 | |
DE2760220A Expired DE2760220C2 (de) | 1976-08-02 | 1977-06-22 |
Country Status (36)
Country | Link |
---|---|
JP (7) | JPS5318578A (de) |
AR (1) | AR216080A1 (de) |
AT (3) | AT362790B (de) |
BE (1) | BE855965A (de) |
BG (4) | BG28849A3 (de) |
BR (1) | BR7703970A (de) |
CA (3) | CA1095921A (de) |
CH (4) | CH625798A5 (de) |
CS (3) | CS203921B2 (de) |
DD (1) | DD132494A5 (de) |
DE (3) | DE2728499C2 (de) |
DK (4) | DK153483C (de) |
EG (1) | EG13080A (de) |
ES (5) | ES459994A1 (de) |
FI (6) | FI72722C (de) |
FR (1) | FR2372821A1 (de) |
GB (5) | GB1538373A (de) |
GR (1) | GR68938B (de) |
HK (5) | HK30681A (de) |
HU (4) | HU185686B (de) |
IE (5) | IE45641B1 (de) |
IT (1) | IT1106258B (de) |
LU (1) | LU77600A1 (de) |
MX (1) | MX4597E (de) |
MY (3) | MY8100267A (de) |
NL (5) | NL170955C (de) |
NO (7) | NO150561C (de) |
NZ (1) | NZ184342A (de) |
PH (5) | PH13557A (de) |
PL (4) | PL115586B1 (de) |
PT (1) | PT66694B (de) |
RO (4) | RO78953A (de) |
SE (6) | SE433079B (de) |
SU (2) | SU955859A3 (de) |
TR (1) | TR19652A (de) |
YU (4) | YU40166B (de) |
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 (de) * | 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 (de) * | 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 |
CA2722393A1 (en) | 2008-04-25 | 2009-10-29 | Apotex Technologies Inc. | Liquid formulation for deferiprone with palatable taste |
MA33985B1 (fr) | 2009-07-03 | 2013-02-01 | Apotex Technologies Inc | Dérivés fluorés de 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 (de) * | 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 BE BE1008209A patent/BE855965A/xx not_active IP Right Cessation
- 1977-06-21 NL NLAANVRAGE7706811,A patent/NL170955C/xx not_active IP Right Cessation
- 1977-06-22 DE DE2728499A patent/DE2728499C2/de not_active Expired
- 1977-06-22 ES ES459994A patent/ES459994A1/es not_active Expired
- 1977-06-22 NO NO772193A patent/NO150561C/no unknown
- 1977-06-22 TR TR19652A patent/TR19652A/xx unknown
- 1977-06-22 PT PT66694A patent/PT66694B/pt unknown
- 1977-06-22 DE DE2760221A patent/DE2760221C2/de not_active Expired
- 1977-06-22 CH CH765877A patent/CH625798A5/fr not_active IP Right Cessation
- 1977-06-22 LU LU77600A patent/LU77600A1/xx unknown
- 1977-06-22 DK DK276177A patent/DK153483C/da active
- 1977-06-22 DE DE2760220A patent/DE2760220C2/de not_active Expired
- 1977-06-22 EG EG371/77A patent/EG13080A/xx active
- 1977-06-22 AT AT0440477A patent/AT362790B/de not_active IP Right Cessation
- 1977-06-23 AR AR268164A patent/AR216080A1/es active
- 1977-06-23 FR FR7719250A patent/FR2372821A1/fr active Granted
- 1977-06-23 DD DD7700199657A patent/DD132494A5/de not_active IP Right Cessation
- 1977-06-23 IT IT49950/77A patent/IT1106258B/it active
- 1977-07-14 BG BG7736892A patent/BG28849A3/xx unknown
- 1977-07-14 BG BG7742606A patent/BG28988A4/xx unknown
- 1977-07-14 BG BG7942608A patent/BG29136A3/xx unknown
- 1977-07-14 BG BG7942607A patent/BG28989A4/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 GB GB4241/78A patent/GB1538373A/en not_active Expired
- 1977-07-21 GB GB4240/78A patent/GB1538372A/en not_active Expired
- 1977-07-21 HU HU82155A patent/HU185686B/hu unknown
- 1977-07-21 HU HU82157A patent/HU185687B/hu unknown
- 1977-07-21 PL PL1977199798A patent/PL115586B1/pl unknown
- 1977-07-21 PL PL1977215006A patent/PL115497B1/pl 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 HU HU77PI584A patent/HU180040B/hu unknown
- 1977-07-21 PL PL1977215007A patent/PL115496B1/pl unknown
- 1977-07-21 SU SU772508256A patent/SU955859A3/ru active
- 1977-07-21 PL PL21500877A patent/PL215008A1/xx 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
- 1977-07-29 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
- 1977-07-29 IE IE586/79A patent/IE45644B1/en not_active IP Right Cessation
- 1977-07-29 IE IE587/79A patent/IE45645B1/en not_active IP Right Cessation
- 1977-07-29 IE IE584/79A patent/IE45642B1/en not_active IP Right Cessation
-
1978
- 1978-02-03 PH PH20746A patent/PH13926A/en unknown
- 1978-02-03 PH PH20745A patent/PH15185A/en unknown
- 1978-05-25 JP JP53062820A patent/JPS5814433B2/ja not_active Expired
- 1978-05-25 JP JP6281878A patent/JPS5436267A/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 JP6282178A patent/JPS5436270A/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 ES470745A patent/ES470745A1/es not_active Expired
- 1978-06-13 ES ES470746A patent/ES470746A1/es not_active Expired
- 1978-06-13 ES ES470743A patent/ES470743A1/es not_active Expired
- 1978-06-13 ES ES470744A patent/ES470744A1/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 AT0124480A patent/AT363470B/de not_active IP Right Cessation
- 1980-03-06 AT AT0124380A patent/AT364356B/de not_active IP Right Cessation
- 1980-10-24 CA CA363,273A patent/CA1110254A/en not_active Expired
- 1980-10-24 CA CA000363274A patent/CA1117541A/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 HK306/81A patent/HK30681A/xx unknown
- 1981-07-02 HK HK304/81A patent/HK30481A/xx 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 HK303/81A patent/HK30381A/xx unknown
- 1981-12-09 NL NLAANVRAGE8105540,A patent/NL182805C/xx not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105539,A patent/NL182478C/xx not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105538,A patent/NL182477C/xx not_active IP Right Cessation
- 1981-12-09 NL NLAANVRAGE8105537,A patent/NL182476C/xx not_active IP Right Cessation
- 1981-12-30 MY MY267/81A patent/MY8100267A/xx unknown
- 1981-12-30 MY MY262/81A patent/MY8100262A/xx unknown
- 1981-12-30 MY MY287/81A patent/MY8100287A/xx unknown
-
1982
- 1982-01-29 SE SE8200522A patent/SE444565B/sv not_active IP Right Cessation
- 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 SE8200520A patent/SE444564B/sv not_active IP Right Cessation
- 1982-01-29 SE SE8200521A patent/SE452616B/sv not_active IP Right Cessation
- 1982-06-03 NO NO821849A patent/NO150559C/no unknown
- 1982-06-03 NO NO821848A patent/NO150043C/no unknown
- 1982-06-03 NO NO821850A patent/NO821850L/no unknown
- 1982-06-03 NO NO821851A patent/NO150560C/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
-
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 FI831704A patent/FI72721C/fi not_active IP Right Cessation
- 1983-05-16 FI FI831701A patent/FI72723C/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 DK325986A patent/DK153484C/da active
- 1986-07-09 DK DK326186A patent/DK154079C/da active
- 1986-07-09 DK DK326086A patent/DK153401C/da not_active IP Right Cessation
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