AR214976A1 - PROCEDURE TO PREPARE A 4,5-EPOXY-B-PIRONE, USEFUL FOR THE PRODUCTION OF GAMMA-PYRONES, AND A 2-ETHYL-4,5-EPOXY-B-PIRONE SO OBTAINED - Google Patents

PROCEDURE TO PREPARE A 4,5-EPOXY-B-PIRONE, USEFUL FOR THE PRODUCTION OF GAMMA-PYRONES, AND A 2-ETHYL-4,5-EPOXY-B-PIRONE SO OBTAINED

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Publication number
AR214976A1
AR214976A1 AR263946A AR26394676A AR214976A1 AR 214976 A1 AR214976 A1 AR 214976A1 AR 263946 A AR263946 A AR 263946A AR 26394676 A AR26394676 A AR 26394676A AR 214976 A1 AR214976 A1 AR 214976A1
Authority
AR
Argentina
Prior art keywords
pirone
epoxy
pyrones
gamma
ethyl
Prior art date
Application number
AR263946A
Other languages
Spanish (es)
Original Assignee
Pfizer
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pfizer filed Critical Pfizer
Application granted granted Critical
Publication of AR214976A1 publication Critical patent/AR214976A1/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/26Heterocyclic 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
    • C07D307/30Heterocyclic 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
    • C07D307/32Oxygen atoms
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, 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
    • A23L27/00Spices; Flavouring agents or condiments; Artificial sweetening agents; Table salts; Dietetic salt substitutes; Preparation or treatment thereof
    • A23L27/20Synthetic spices, flavouring agents or condiments
    • A23L27/205Heterocyclic compounds
    • A23L27/2052Heterocyclic compounds having oxygen or sulfur as the only hetero atoms
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D307/00Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
    • C07D307/02Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom not condensed with other rings
    • C07D307/34Heterocyclic 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
    • C07D307/56Heterocyclic 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
    • C07D307/60Two oxygen atoms, e.g. succinic anhydride
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D309/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/32Heterocyclic 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D309/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/34Heterocyclic 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
    • C07D309/36Heterocyclic 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
    • C07D309/40Oxygen atoms attached in positions 3 and 4, e.g. maltol
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D493/00Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system
    • C07D493/02Heterocyclic compounds containing oxygen atoms as the only ring hetero atoms in the condensed system in which the condensed system contains two hetero rings
    • C07D493/04Ortho-condensed systems
    • CCHEMISTRY; METALLURGY
    • C11ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11BPRODUCING, 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
    • C11B9/00Essential oils; Perfumes
    • C11B9/0069Heterocyclic compounds
    • C11B9/0073Heterocyclic compounds containing only O or S as heteroatoms
    • C11B9/008Heterocyclic 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)
  • Health & Medical Sciences (AREA)
  • Nutrition Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (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)
  • Plural Heterocyclic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Pyrane Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pyridine Compounds (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Picture Signal Circuits (AREA)
  • Electroluminescent Light Sources (AREA)
  • Transforming Electric Information Into Light Information (AREA)
AR263946A 1975-08-28 1976-07-14 PROCEDURE TO PREPARE A 4,5-EPOXY-B-PIRONE, USEFUL FOR THE PRODUCTION OF GAMMA-PYRONES, AND A 2-ETHYL-4,5-EPOXY-B-PIRONE SO OBTAINED AR214976A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US60845275A 1975-08-28 1975-08-28

Publications (1)

Publication Number Publication Date
AR214976A1 true AR214976A1 (en) 1979-08-31

Family

ID=24436571

Family Applications (2)

Application Number Title Priority Date Filing Date
AR263946A AR214976A1 (en) 1975-08-28 1976-07-14 PROCEDURE TO PREPARE A 4,5-EPOXY-B-PIRONE, USEFUL FOR THE PRODUCTION OF GAMMA-PYRONES, AND A 2-ETHYL-4,5-EPOXY-B-PIRONE SO OBTAINED
AR266904A AR215618A1 (en) 1975-08-28 1977-03-18 PROCEDURE FOR PREPARING 3-HYDROXY-GAMMA-PIRONES, USED AS FLAVORING AND AROMATIZING AGENTS

Family Applications After (1)

Application Number Title Priority Date Filing Date
AR266904A AR215618A1 (en) 1975-08-28 1977-03-18 PROCEDURE FOR PREPARING 3-HYDROXY-GAMMA-PIRONES, USED AS FLAVORING AND AROMATIZING AGENTS

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) HK29981A (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) PL104612B1 (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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
YU39577B (en) 1984-12-31
GB1505028A (en) 1978-03-22
NL7607730A (en) 1977-03-02
DK148020C (en) 1985-10-07
NL8004974A (en) 1980-11-28
MX3627E (en) 1981-04-03
PT65357A (en) 1976-07-31
ZA763902B (en) 1977-05-25
FI71316C (en) 1986-12-19
DE2630837C3 (en) 1981-07-09
CA1077501A (en) 1980-05-13
FI762039A (en) 1977-03-01
RO71275A (en) 1984-03-15
YU160476A (en) 1982-08-31
FI71316B (en) 1986-09-09
BR7604541A (en) 1977-08-02
GR60430B (en) 1978-05-26
NO145952C (en) 1982-06-30
DD127201A5 (en) 1977-09-14
ES461253A1 (en) 1978-08-16
SE7607321L (en) 1977-03-01
DD131857A5 (en) 1978-07-26
AT347455B (en) 1978-12-27
IE42789B1 (en) 1980-10-22
SE432929B (en) 1984-04-30
FR2322146B1 (en) 1978-10-20
CS193595B2 (en) 1979-10-31
MY8100273A (en) 1981-12-31
NO145952B (en) 1982-03-22
NO146572C (en) 1982-10-27
SE7910630L (en) 1979-12-21
PL110241B1 (en) 1980-07-31
PL104612B1 (en) 1979-08-31
NO147245B (en) 1982-11-22
PH13217A (en) 1980-02-07
NO803832L (en) 1977-03-01
NL166260B (en) 1981-02-16
DK315576A (en) 1976-02-29
PT65357B (en) 1978-01-09
DK148020B (en) 1985-02-04
GB1505029A (en) 1978-03-22
SU1169540A3 (en) 1985-07-23
HU177367B (en) 1981-09-28
ATA517276A (en) 1978-05-15
NL166260C (en) 1981-07-15
JPS5231077A (en) 1977-03-09
PL110369B1 (en) 1980-07-31
LU75380A1 (en) 1977-04-04
TR19310A (en) 1978-11-28
IN144978B (en) 1978-08-05
SE7910631L (en) 1979-12-21
BE843953A (en) 1977-01-10
RO71275B (en) 1984-03-31
SU942596A3 (en) 1982-07-07
CH620917A5 (en) 1980-12-31
MY8100265A (en) 1981-12-31
NO146572B (en) 1982-07-19
CS193557B2 (en) 1979-10-31
HK29981A (en) 1981-07-10
NO147245C (en) 1983-03-02
YU103182A (en) 1982-08-31
HK30081A (en) 1981-07-10
BG27373A3 (en) 1979-10-12
ES449938A1 (en) 1978-03-16
IE42789L (en) 1977-02-28
AU1578376A (en) 1978-01-12
PH14410A (en) 1981-06-25
SE433078B (en) 1984-05-07
ES461252A1 (en) 1978-08-16
DE2630837B2 (en) 1980-08-21
HU187762B (en) 1986-02-28
FR2322146A1 (en) 1977-03-25
YU39355B (en) 1984-10-31
NO762449L (en) 1977-03-01
SE426592B (en) 1983-01-31
NO803831L (en) 1977-03-01
DE2630837A1 (en) 1977-03-03
AR215618A1 (en) 1979-10-31
IT1065604B (en) 1985-03-04

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