SE7910631L - PROCEDURE FOR MANUFACTURE OF GAMMA PYRONES - Google Patents
PROCEDURE FOR MANUFACTURE OF GAMMA PYRONESInfo
- Publication number
- SE7910631L SE7910631L SE7910631A SE7910631A SE7910631L SE 7910631 L SE7910631 L SE 7910631L SE 7910631 A SE7910631 A SE 7910631A SE 7910631 A SE7910631 A SE 7910631A SE 7910631 L SE7910631 L SE 7910631L
- Authority
- SE
- Sweden
- Prior art keywords
- procedure
- manufacture
- compounds
- pyrones
- gamma
- 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
- C07D307/26—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member
- C07D307/30—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings having one double bond between ring members or between a ring member and a non-ring member 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
- C07D307/32—Oxygen atoms
-
- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L27/00—Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
- A23L27/20—Synthetic spices, flavouring agents or condiments
- A23L27/205—Heterocyclic compounds
- A23L27/2052—Heterocyclic compounds having oxygen or sulfur as the only hetero atoms
-
- 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
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D493/00—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
- C07D493/02—Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
- C07D493/04—Ortho-condensed systems
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11B—PRODUCING, e.g. BY PRESSING RAW MATERIALS OR BY EXTRACTION FROM WASTE MATERIALS, REFINING OR PRESERVING FATS, FATTY SUBSTANCES, e.g. LANOLIN, FATTY OILS OR WAXES; ESSENTIAL OILS; PERFUMES
- C11B9/00—Essential oils; Perfumes
- C11B9/0069—Heterocyclic compounds
- C11B9/0073—Heterocyclic compounds containing only O or S as heteroatoms
- C11B9/008—Heterocyclic compounds containing only O or S as heteroatoms the hetero rings containing six atoms
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Nutrition Science (AREA)
- Food Science & Technology (AREA)
- Polymers & Plastics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Epoxy Compounds (AREA)
- Saccharide Compounds (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
- Pyrane Compounds (AREA)
- Plural Heterocyclic Compounds (AREA)
- Electroluminescent Light Sources (AREA)
- Picture Signal Circuits (AREA)
- Transforming Electric Information Into Light Information (AREA)
- Nitrogen Condensed Heterocyclic Rings (AREA)
- Pyridine Compounds (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Compounds Of Unknown Constitution (AREA)
Abstract
1505029 Electrolytically producing intermediate pyran compounds PFIZER Inc 21 July 1976 [28 Aug 1975] 43608/76 Divided out of 1505028 Heading C7B [Also in Division C2] Compounds of the Formula II are made by subjecting compounds III to electrolysis in the presence of a solvent R1OH, where R1 is C 1-6 alkyl. In Example 3 a compound II, when R1 is CH 3 is made by submitting 2-(α- hydroxypropyl) furon to a constant current of 0À6 amperes in methanol containing conc. H 2 SO 4 .
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US60845275A | 1975-08-28 | 1975-08-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7910631L true SE7910631L (en) | 1979-12-21 |
SE432929B SE432929B (en) | 1984-04-30 |
Family
ID=24436571
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7607321A SE426592B (en) | 1975-08-28 | 1976-06-24 | PROCEDURE FOR MANUFACTURING GAMMA PYRONS |
SE7910631A SE432929B (en) | 1975-08-28 | 1979-12-21 | PROCEDURE FOR MANUFACTURING GAMMA PYRONS AND INTERMEDIATE PRODUCTS FOR USE IN PREPARATION OF ETHYL MALTOL |
SE7910630A SE433078B (en) | 1975-08-28 | 1979-12-21 | PROCEDURE FOR PREPARING BETA PYRONS AND INTERMEDIATE PRODUCTS FOR USE IN PREPARATION OF ETHYL MALTOL |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7607321A SE426592B (en) | 1975-08-28 | 1976-06-24 | PROCEDURE FOR MANUFACTURING GAMMA PYRONS |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7910630A SE433078B (en) | 1975-08-28 | 1979-12-21 | PROCEDURE FOR PREPARING BETA PYRONS AND INTERMEDIATE PRODUCTS FOR USE IN PREPARATION OF ETHYL MALTOL |
Country Status (36)
Country | Link |
---|---|
JP (1) | JPS5231077A (en) |
AR (2) | AR214976A1 (en) |
AT (1) | AT347455B (en) |
BE (1) | BE843953A (en) |
BG (1) | BG27373A3 (en) |
BR (1) | BR7604541A (en) |
CA (1) | CA1077501A (en) |
CH (1) | CH620917A5 (en) |
CS (2) | CS193595B2 (en) |
DD (2) | DD127201A5 (en) |
DE (1) | DE2630837C3 (en) |
DK (1) | DK148020C (en) |
ES (3) | ES449938A1 (en) |
FI (1) | FI71316C (en) |
FR (1) | FR2322146A1 (en) |
GB (2) | GB1505028A (en) |
GR (1) | GR60430B (en) |
HK (2) | HK30081A (en) |
HU (2) | HU187762B (en) |
IE (1) | IE42789B1 (en) |
IN (1) | IN144978B (en) |
IT (1) | IT1065604B (en) |
LU (1) | LU75380A1 (en) |
MX (1) | MX3627E (en) |
MY (2) | MY8100273A (en) |
NL (2) | NL166260C (en) |
NO (3) | NO145952C (en) |
PH (2) | PH13217A (en) |
PL (3) | PL110241B1 (en) |
PT (1) | PT65357B (en) |
RO (1) | RO71275B (en) |
SE (3) | SE426592B (en) |
SU (2) | SU942596A3 (en) |
TR (1) | TR19310A (en) |
YU (2) | YU39355B (en) |
ZA (1) | ZA763902B (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52153967A (en) * | 1976-06-15 | 1977-12-21 | Otsuka Chem Co Ltd | 5,6-dihydro-2h-pyran-5-one derivatives |
CA1095921A (en) * | 1976-08-02 | 1981-02-17 | Thomas M. Brennan | Preparation of gamma-pyrones |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE225446C (en) * | ||||
US3159652A (en) * | 1962-06-13 | 1964-12-01 | Pfizer & Co C | Preparation of gamma-pyrones |
US3476778A (en) * | 1966-05-16 | 1969-11-04 | Monsanto Co | Gamma-pyrone synthesis |
US3491122A (en) * | 1966-09-14 | 1970-01-20 | Monsanto Co | Synthesis of 4-pyrones |
JPS5145565B1 (en) * | 1968-10-12 | 1976-12-04 | ||
JPS5212166A (en) * | 1975-07-17 | 1977-01-29 | Tatsuya Shono | Process for preparation of 4-pyron derivatives |
-
1976
- 1976-04-01 IE IE685/76A patent/IE42789B1/en unknown
- 1976-06-24 SE SE7607321A patent/SE426592B/en unknown
- 1976-06-28 GR GR51133A patent/GR60430B/en unknown
- 1976-06-29 IN IN1155/CAL/76A patent/IN144978B/en unknown
- 1976-06-29 CA CA255,993A patent/CA1077501A/en not_active Expired
- 1976-06-30 YU YU1604/76A patent/YU39355B/en unknown
- 1976-06-30 ZA ZA763902A patent/ZA763902B/en unknown
- 1976-07-01 PH PH18639A patent/PH13217A/en unknown
- 1976-07-07 MX MX761180U patent/MX3627E/en unknown
- 1976-07-09 FR FR7621102A patent/FR2322146A1/en active Granted
- 1976-07-09 DE DE2630837A patent/DE2630837C3/en not_active Expired
- 1976-07-09 BE BE1007496A patent/BE843953A/en not_active IP Right Cessation
- 1976-07-12 PT PT65357A patent/PT65357B/en unknown
- 1976-07-12 BR BR7604541A patent/BR7604541A/en unknown
- 1976-07-13 DD DD193825A patent/DD127201A5/xx unknown
- 1976-07-13 JP JP51083428A patent/JPS5231077A/en active Pending
- 1976-07-13 DD DD7600200675A patent/DD131857A5/en unknown
- 1976-07-13 FI FI762039A patent/FI71316C/en not_active IP Right Cessation
- 1976-07-13 DK DK315576A patent/DK148020C/en not_active IP Right Cessation
- 1976-07-13 NO NO762449A patent/NO145952C/en unknown
- 1976-07-13 NL NL7607730.A patent/NL166260C/en not_active IP Right Cessation
- 1976-07-14 IT IT50417/76A patent/IT1065604B/en active
- 1976-07-14 LU LU75380A patent/LU75380A1/xx unknown
- 1976-07-14 CH CH905076A patent/CH620917A5/en not_active IP Right Cessation
- 1976-07-14 AT AT517276A patent/AT347455B/en not_active IP Right Cessation
- 1976-07-14 AR AR263946A patent/AR214976A1/en active
- 1976-07-19 ES ES449938A patent/ES449938A1/en not_active Expired
- 1976-07-20 BG BG7633793A patent/BG27373A3/en unknown
- 1976-07-21 GB GB30470/76A patent/GB1505028A/en not_active Expired
- 1976-07-21 GB GB43608/76A patent/GB1505029A/en not_active Expired
- 1976-07-23 CS CS776588A patent/CS193595B2/en unknown
- 1976-07-23 RO RO87075A patent/RO71275B/en unknown
- 1976-07-23 HU HU81127A patent/HU187762B/en unknown
- 1976-07-23 HU HU76PI532A patent/HU177367B/en unknown
- 1976-07-23 CS CS764886A patent/CS193557B2/en unknown
- 1976-07-24 PL PL1976210756A patent/PL110241B1/en unknown
- 1976-07-24 PL PL1976210755A patent/PL110369B1/en unknown
- 1976-07-24 PL PL1976191419A patent/PL104612B1/en unknown
- 1976-08-27 SU SU762391501A patent/SU942596A3/en active
-
1977
- 1977-03-18 AR AR266904A patent/AR215618A1/en active
- 1977-08-01 ES ES461253A patent/ES461253A1/en not_active Expired
- 1977-08-01 ES ES461252A patent/ES461252A1/en not_active Expired
- 1977-08-04 PH PH20075A patent/PH14410A/en unknown
- 1977-08-30 SU SU772514858A patent/SU1169540A3/en active
-
1978
- 1978-08-08 TR TR19310A patent/TR19310A/en unknown
-
1979
- 1979-12-21 SE SE7910631A patent/SE432929B/en unknown
- 1979-12-21 SE SE7910630A patent/SE433078B/en unknown
-
1980
- 1980-09-02 NL NL8004974A patent/NL8004974A/en active Search and Examination
- 1980-12-17 NO NO803831A patent/NO147245C/en unknown
- 1980-12-17 NO NO803832A patent/NO146572C/en unknown
-
1981
- 1981-07-02 HK HK300/81A patent/HK30081A/en unknown
- 1981-07-02 HK HK299/81A patent/HK29981A/en unknown
- 1981-12-30 MY MY273/81A patent/MY8100273A/en unknown
- 1981-12-30 MY MY265/81A patent/MY8100265A/en unknown
-
1982
- 1982-05-17 YU YU1031/82A patent/YU39577B/en unknown
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Legal Events
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NAL | Patent in force |
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