DK315576A - Fremgangsmade til fremstilling af alfa-pyroner - Google Patents

Fremgangsmade til fremstilling af alfa-pyroner

Info

Publication number
DK315576A
DK315576A DK315576A DK315576A DK315576A DK 315576 A DK315576 A DK 315576A DK 315576 A DK315576 A DK 315576A DK 315576 A DK315576 A DK 315576A DK 315576 A DK315576 A DK 315576A
Authority
DK
Denmark
Prior art keywords
pyrones
alfa
procedure
making
making alfa
Prior art date
Application number
DK315576A
Other languages
English (en)
Other versions
DK148020C (da
DK148020B (da
Inventor
P D Weeks
R P 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
Publication of DK315576A publication Critical patent/DK315576A/da
Application filed by Pfizer filed Critical Pfizer
Priority to DK146379A priority Critical patent/DK148084C/da
Publication of DK148020B publication Critical patent/DK148020B/da
Application granted granted Critical
Publication of DK148020C publication Critical patent/DK148020C/da

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 OTHERWISE PROVIDED FOR; PREPARATION OR TREATMENT THEREOF
    • 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)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Polymers & Plastics (AREA)
  • Food Science & Technology (AREA)
  • Nutrition Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Health & Medical Sciences (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)
  • Pyrane Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Pyridine Compounds (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Picture Signal Circuits (AREA)
  • Electroluminescent Light Sources (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
DK315576A 1975-08-28 1976-07-13 Fremgangsmaade til fremstilling af 6-alkoxy-2h-pyran-3(6h)-on-forbindelser DK148020C (da)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DK146379A DK148084C (da) 1975-08-28 1979-04-09 Fremgangsmaade til fremstilling af gamma-pyroner

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US60845275A 1975-08-28 1975-08-28
US60845275 1975-08-28

Publications (3)

Publication Number Publication Date
DK315576A true DK315576A (da) 1976-02-29
DK148020B DK148020B (da) 1985-02-04
DK148020C DK148020C (da) 1985-10-07

Family

ID=24436571

Family Applications (1)

Application Number Title Priority Date Filing Date
DK315576A DK148020C (da) 1975-08-28 1976-07-13 Fremgangsmaade til fremstilling af 6-alkoxy-2h-pyran-3(6h)-on-forbindelser

Country Status (36)

Country Link
JP (1) JPS5231077A (da)
AR (2) AR214976A1 (da)
AT (1) AT347455B (da)
BE (1) BE843953A (da)
BG (1) BG27373A3 (da)
BR (1) BR7604541A (da)
CA (1) CA1077501A (da)
CH (1) CH620917A5 (da)
CS (2) CS193557B2 (da)
DD (2) DD131857A5 (da)
DE (1) DE2630837C3 (da)
DK (1) DK148020C (da)
ES (3) ES449938A1 (da)
FI (1) FI71316C (da)
FR (1) FR2322146A1 (da)
GB (2) GB1505028A (da)
GR (1) GR60430B (da)
HK (2) HK30081A (da)
HU (2) HU187762B (da)
IE (1) IE42789B1 (da)
IN (1) IN144978B (da)
IT (1) IT1065604B (da)
LU (1) LU75380A1 (da)
MX (1) MX3627E (da)
MY (2) MY8100265A (da)
NL (2) NL166260C (da)
NO (3) NO145952C (da)
PH (2) PH13217A (da)
PL (3) PL104612B1 (da)
PT (1) PT65357B (da)
RO (1) RO71275B (da)
SE (3) SE426592B (da)
SU (2) SU942596A3 (da)
TR (1) TR19310A (da)
YU (2) YU39355B (da)
ZA (1) ZA763902B (da)

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 (da) *
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 (da) * 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
IT1065604B (it) 1985-03-04
FI762039A7 (da) 1977-03-01
GB1505029A (en) 1978-03-22
BE843953A (fr) 1977-01-10
JPS5231077A (en) 1977-03-09
AR215618A1 (es) 1979-10-31
NO146572C (no) 1982-10-27
MY8100273A (en) 1981-12-31
CS193557B2 (en) 1979-10-31
NO803831L (no) 1977-03-01
IE42789B1 (en) 1980-10-22
ES461252A1 (es) 1978-08-16
HK29981A (en) 1981-07-10
SE7910631L (sv) 1979-12-21
PL110369B1 (en) 1980-07-31
SE426592B (sv) 1983-01-31
HU177367B (en) 1981-09-28
FR2322146B1 (da) 1978-10-20
FR2322146A1 (fr) 1977-03-25
NO147245B (no) 1982-11-22
LU75380A1 (da) 1977-04-04
RO71275A (ro) 1984-03-15
SU1169540A3 (ru) 1985-07-23
PT65357B (en) 1978-01-09
PL104612B1 (pl) 1979-08-31
YU103182A (en) 1982-08-31
GB1505028A (en) 1978-03-22
NO803832L (no) 1977-03-01
IE42789L (en) 1977-02-28
NO762449L (da) 1977-03-01
ES449938A1 (es) 1978-03-16
SE433078B (sv) 1984-05-07
PH13217A (en) 1980-02-07
ES461253A1 (es) 1978-08-16
NL8004974A (nl) 1980-11-28
HU187762B (en) 1986-02-28
TR19310A (tr) 1978-11-28
NL166260B (nl) 1981-02-16
DD131857A5 (de) 1978-07-26
NL7607730A (nl) 1977-03-02
DE2630837B2 (de) 1980-08-21
YU39355B (en) 1984-10-31
DE2630837A1 (de) 1977-03-03
DD127201A5 (da) 1977-09-14
RO71275B (ro) 1984-03-31
BR7604541A (pt) 1977-08-02
PH14410A (en) 1981-06-25
ZA763902B (en) 1977-05-25
MY8100265A (en) 1981-12-31
SU942596A3 (ru) 1982-07-07
AT347455B (de) 1978-12-27
FI71316B (fi) 1986-09-09
NO145952C (no) 1982-06-30
MX3627E (es) 1981-04-03
PT65357A (en) 1976-07-31
SE432929B (sv) 1984-04-30
YU39577B (en) 1984-12-31
ATA517276A (de) 1978-05-15
CS193595B2 (en) 1979-10-31
FI71316C (fi) 1986-12-19
PL110241B1 (en) 1980-07-31
YU160476A (en) 1982-08-31
CH620917A5 (en) 1980-12-31
DE2630837C3 (de) 1981-07-09
BG27373A3 (bg) 1979-10-12
NO145952B (no) 1982-03-22
HK30081A (en) 1981-07-10
DK148020C (da) 1985-10-07
NO147245C (no) 1983-03-02
GR60430B (en) 1978-05-26
CA1077501A (en) 1980-05-13
DK148020B (da) 1985-02-04
SE7910630L (sv) 1979-12-21
NO146572B (no) 1982-07-19
NL166260C (nl) 1981-07-15
SE7607321L (sv) 1977-03-01
IN144978B (da) 1978-08-05
AU1578376A (en) 1978-01-12
AR214976A1 (es) 1979-08-31

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PUP Patent expired