MY8100273A - Preparation of gamma-pyrones - Google Patents

Preparation of gamma-pyrones

Info

Publication number
MY8100273A
MY8100273A MY273/81A MY8100273A MY8100273A MY 8100273 A MY8100273 A MY 8100273A MY 273/81 A MY273/81 A MY 273/81A MY 8100273 A MY8100273 A MY 8100273A MY 8100273 A MY8100273 A MY 8100273A
Authority
MY
Malaysia
Prior art keywords
pyrones
gamma
preparation
Prior art date
Application number
MY273/81A
Other languages
English (en)
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 MY8100273A publication Critical patent/MY8100273A/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)
MY273/81A 1975-08-28 1981-12-30 Preparation of gamma-pyrones MY8100273A (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
MY8100273A true MY8100273A (en) 1981-12-31

Family

ID=24436571

Family Applications (2)

Application Number Title Priority Date Filing Date
MY273/81A MY8100273A (en) 1975-08-28 1981-12-30 Preparation of gamma-pyrones
MY265/81A MY8100265A (en) 1975-08-28 1981-12-30 2-ethyl-6-alkoxy-2,3-dihyro-6h-pyran-3-ones

Family Applications After (1)

Application Number Title Priority Date Filing Date
MY265/81A MY8100265A (en) 1975-08-28 1981-12-30 2-ethyl-6-alkoxy-2,3-dihyro-6h-pyran-3-ones

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
ZA763902B (en) 1977-05-25
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
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

Similar Documents

Publication Publication Date Title
GR60835B (en) Preparation process of delta15-steroids
GR60435B (en) Preparation process of acylamino-derivatives
JPS51136772A (en) Preparation of high ciss1*44polybutadiene
GR60047B (en) Preparation process of 11-desoxy-16-aryloxy-omega-tetranorprostaglandins
JPS51131836A (en) Preparation of acetoacetylarylamide
JPS5251330A (en) Preparation of trichloromethyll trifluoromethyllbenzene
JPS51115427A (en) Preparation of ethylbenzole
GR60849B (en) Preparation process of l-pyroglutamyl-l-prolinamide
JPS51112919A (en) Manufacture of gammaamodified polyamidee66filament
JPS51143627A (en) Preparation of 2* 55dichlorotoluene
GB1539733A (en) Preparation of 3-phenoxybenzaldehydes
JPS5259118A (en) Preparation of trichloromethyll trifluoromethyllbenzene
JPS5259119A (en) Preparation of trichloromethyll trifluoromethyllbenzene
IL50634A0 (en) Preparation of 2-amino-1-alcohols
PT65624A (en) Process of preparation of 4-hydroxymethyl-2-pyrrolidinone
IL50150A (en) Preparation of 3-methoxymethyl-cephalosporins
JPS5273832A (en) Preparation of halogennitrobenzole
NZ181026A (en) Preparation of n-oxazol-2-ylcarboxamides
JPS5223028A (en) Preparation of alpha* alpha* alpha** alpha** alphaapentachlorooooxylol
GB1544683A (en) Manufacture of 5-cyanopyrid-6-ones
JPS51135228A (en) Preparation of leaffmold
IL49120A (en) Preparation of n-alkenyl-2-aminomethyl-pyrrolidines
HK29981A (en) Preparation of gamma-pyrones
JPS5287125A (en) Preparation of nnphenyll55chloroo22nitroaniline
JPS51122033A (en) Preparation of symmetric diarylsulphide