ZA763902B - Preparation of gamma-pyrones - Google Patents

Preparation of gamma-pyrones

Info

Publication number
ZA763902B
ZA763902B ZA763902A ZA763902A ZA763902B ZA 763902 B ZA763902 B ZA 763902B ZA 763902 A ZA763902 A ZA 763902A ZA 763902 A ZA763902 A ZA 763902A ZA 763902 B ZA763902 B ZA 763902B
Authority
ZA
South Africa
Prior art keywords
pyrones
gamma
preparation
Prior art date
Application number
ZA763902A
Other languages
English (en)
Inventor
P Weeks
R Allingham
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
Publication of ZA763902B publication Critical patent/ZA763902B/xx

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)
  • 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)
ZA763902A 1975-08-28 1976-06-30 Preparation of gamma-pyrones ZA763902B (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
ZA763902B true ZA763902B (en) 1977-05-25

Family

ID=24436571

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA763902A ZA763902B (en) 1975-08-28 1976-06-30 Preparation of gamma-pyrones

Country Status (36)

Country Link
JP (1) JPS5231077A (el)
AR (2) AR214976A1 (el)
AT (1) AT347455B (el)
BE (1) BE843953A (el)
BG (1) BG27373A3 (el)
BR (1) BR7604541A (el)
CA (1) CA1077501A (el)
CH (1) CH620917A5 (el)
CS (2) CS193595B2 (el)
DD (2) DD127201A5 (el)
DE (1) DE2630837C3 (el)
DK (1) DK148020C (el)
ES (3) ES449938A1 (el)
FI (1) FI71316C (el)
FR (1) FR2322146A1 (el)
GB (2) GB1505028A (el)
GR (1) GR60430B (el)
HK (2) HK29981A (el)
HU (2) HU187762B (el)
IE (1) IE42789B1 (el)
IN (1) IN144978B (el)
IT (1) IT1065604B (el)
LU (1) LU75380A1 (el)
MX (1) MX3627E (el)
MY (2) MY8100273A (el)
NL (2) NL166260C (el)
NO (3) NO145952C (el)
PH (2) PH13217A (el)
PL (3) PL104612B1 (el)
PT (1) PT65357B (el)
RO (1) RO71275B (el)
SE (3) SE426592B (el)
SU (2) SU942596A3 (el)
TR (1) TR19310A (el)
YU (2) YU39355B (el)
ZA (1) ZA763902B (el)

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 (el) *
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 (el) * 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 (nl) 1977-03-02
DK148020C (da) 1985-10-07
NL8004974A (nl) 1980-11-28
MX3627E (es) 1981-04-03
PT65357A (en) 1976-07-31
FI71316C (fi) 1986-12-19
DE2630837C3 (de) 1981-07-09
CA1077501A (en) 1980-05-13
FI762039A (el) 1977-03-01
RO71275A (ro) 1984-03-15
YU160476A (en) 1982-08-31
FI71316B (fi) 1986-09-09
BR7604541A (pt) 1977-08-02
GR60430B (en) 1978-05-26
NO145952C (no) 1982-06-30
DD127201A5 (el) 1977-09-14
ES461253A1 (es) 1978-08-16
SE7607321L (sv) 1977-03-01
DD131857A5 (de) 1978-07-26
AT347455B (de) 1978-12-27
IE42789B1 (en) 1980-10-22
SE432929B (sv) 1984-04-30
FR2322146B1 (el) 1978-10-20
CS193595B2 (en) 1979-10-31
MY8100273A (en) 1981-12-31
NO145952B (no) 1982-03-22
NO146572C (no) 1982-10-27
SE7910630L (sv) 1979-12-21
PL110241B1 (en) 1980-07-31
PL104612B1 (pl) 1979-08-31
NO147245B (no) 1982-11-22
PH13217A (en) 1980-02-07
NO803832L (no) 1977-03-01
NL166260B (nl) 1981-02-16
DK315576A (da) 1976-02-29
PT65357B (en) 1978-01-09
DK148020B (da) 1985-02-04
GB1505029A (en) 1978-03-22
SU1169540A3 (ru) 1985-07-23
HU177367B (en) 1981-09-28
ATA517276A (de) 1978-05-15
NL166260C (nl) 1981-07-15
JPS5231077A (en) 1977-03-09
PL110369B1 (en) 1980-07-31
LU75380A1 (el) 1977-04-04
TR19310A (tr) 1978-11-28
AR214976A1 (es) 1979-08-31
IN144978B (el) 1978-08-05
SE7910631L (sv) 1979-12-21
BE843953A (fr) 1977-01-10
RO71275B (ro) 1984-03-31
SU942596A3 (ru) 1982-07-07
CH620917A5 (en) 1980-12-31
MY8100265A (en) 1981-12-31
NO146572B (no) 1982-07-19
CS193557B2 (en) 1979-10-31
HK29981A (en) 1981-07-10
NO147245C (no) 1983-03-02
YU103182A (en) 1982-08-31
HK30081A (en) 1981-07-10
BG27373A3 (en) 1979-10-12
ES449938A1 (es) 1978-03-16
IE42789L (en) 1977-02-28
AU1578376A (en) 1978-01-12
PH14410A (en) 1981-06-25
SE433078B (sv) 1984-05-07
ES461252A1 (es) 1978-08-16
DE2630837B2 (de) 1980-08-21
HU187762B (en) 1986-02-28
FR2322146A1 (fr) 1977-03-25
YU39355B (en) 1984-10-31
NO762449L (el) 1977-03-01
SE426592B (sv) 1983-01-31
NO803831L (no) 1977-03-01
DE2630837A1 (de) 1977-03-03
AR215618A1 (es) 1979-10-31
IT1065604B (it) 1985-03-04

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