SE7910631L - PROCEDURE FOR MANUFACTURE OF GAMMA PYRONES - Google Patents

PROCEDURE FOR MANUFACTURE OF GAMMA PYRONES

Info

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
Application number
SE7910631A
Other languages
Swedish (sv)
Other versions
SE432929B (en
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
Application filed by Pfizer filed Critical Pfizer
Publication of SE7910631L publication Critical patent/SE7910631L/en
Publication of SE432929B publication Critical patent/SE432929B/en

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)

PATENTKRAVPATENT REQUIREMENTS 1. Eorfarande for framstallning av gamma-pyroner med formoln van i betecknar vate, lggre alkyl med 1 - 6 kolatomer, lagre alkenyl med 2 - 6 ko1atomer, fenyl eller bensy1, kannetecknat darav, att en fbrening med formeln van i R. betecknar alkyl med 1 - 6 kolatomer far reagera med vateperoxid till bildning av en mellanprodukt med formeln van i R och R. har ovan angiven betydelse ocn ant nArrinda Mellanprodukter darefter far reagera med en syta till framstallning av namnda gamma-pyron.A process for the preparation of gamma-pyrones of the formula van in represents hydrogen, lower alkyl having 1 to 6 carbon atoms, lower alkenyl having 2 to 6 carbon atoms, phenyl or benzyl, characterized in that a compound of the formula van in R. represents alkyl with 1 to 6 carbon atoms may react with hydrogen peroxide to form an intermediate of the formula van in R 1 and R 2.
SE7910631A 1975-08-28 1979-12-21 PROCEDURE FOR MANUFACTURING GAMMA PYRONS AND INTERMEDIATE PRODUCTS FOR USE IN PREPARATION OF ETHYL MALTOL SE432929B (en)

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)

* 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
NO145952B (en) 1982-03-22
PL110369B1 (en) 1980-07-31
CS193595B2 (en) 1979-10-31
ES461253A1 (en) 1978-08-16
MX3627E (en) 1981-04-03
PT65357A (en) 1976-07-31
NL8004974A (en) 1980-11-28
FI71316C (en) 1986-12-19
NO147245B (en) 1982-11-22
NL166260B (en) 1981-02-16
AU1578376A (en) 1978-01-12
NO146572B (en) 1982-07-19
CA1077501A (en) 1980-05-13
SE7910630L (en) 1979-12-21
SE7607321L (en) 1977-03-01
PL110241B1 (en) 1980-07-31
IT1065604B (en) 1985-03-04
HK29981A (en) 1981-07-10
BG27373A3 (en) 1979-10-12
JPS5231077A (en) 1977-03-09
NL166260C (en) 1981-07-15
NO145952C (en) 1982-06-30
HK30081A (en) 1981-07-10
CH620917A5 (en) 1980-12-31
MY8100273A (en) 1981-12-31
AT347455B (en) 1978-12-27
DD131857A5 (en) 1978-07-26
FR2322146B1 (en) 1978-10-20
AR214976A1 (en) 1979-08-31
DE2630837C3 (en) 1981-07-09
NL7607730A (en) 1977-03-02
IE42789B1 (en) 1980-10-22
DE2630837B2 (en) 1980-08-21
NO762449L (en) 1977-03-01
GB1505029A (en) 1978-03-22
YU39355B (en) 1984-10-31
LU75380A1 (en) 1977-04-04
SE426592B (en) 1983-01-31
RO71275B (en) 1984-03-31
PL104612B1 (en) 1979-08-31
IE42789L (en) 1977-02-28
ES461252A1 (en) 1978-08-16
HU177367B (en) 1981-09-28
SE433078B (en) 1984-05-07
DK315576A (en) 1976-02-29
ES449938A1 (en) 1978-03-16
SE432929B (en) 1984-04-30
ATA517276A (en) 1978-05-15
FI71316B (en) 1986-09-09
ZA763902B (en) 1977-05-25
RO71275A (en) 1984-03-15
PT65357B (en) 1978-01-09
FR2322146A1 (en) 1977-03-25
AR215618A1 (en) 1979-10-31
SU942596A3 (en) 1982-07-07
DK148020B (en) 1985-02-04
NO803832L (en) 1977-03-01
PH14410A (en) 1981-06-25
MY8100265A (en) 1981-12-31
CS193557B2 (en) 1979-10-31
TR19310A (en) 1978-11-28
GB1505028A (en) 1978-03-22
YU39577B (en) 1984-12-31
YU160476A (en) 1982-08-31
GR60430B (en) 1978-05-26
YU103182A (en) 1982-08-31
NO147245C (en) 1983-03-02
NO146572C (en) 1982-10-27
FI762039A (en) 1977-03-01
DE2630837A1 (en) 1977-03-03
SU1169540A3 (en) 1985-07-23
BR7604541A (en) 1977-08-02
NO803831L (en) 1977-03-01
BE843953A (en) 1977-01-10
DK148020C (en) 1985-10-07
DD127201A5 (en) 1977-09-14
PH13217A (en) 1980-02-07
HU187762B (en) 1986-02-28
IN144978B (en) 1978-08-05

Similar Documents

Publication Publication Date Title
ES472099A1 (en) Prostaglandin-I2 derivatives
GB1222286A (en) BENZ[e]INDENE AND PHENANTHRENE DERIVATIVES AND A PROCESS FOR THE MANUFACTURE THEREOF
ES442592A1 (en) Method for the preparation of additives in organo-aluminum electrolyte media
GB1159340A (en) Thion- and Thiol-Carbamate Derivatives
SE7910631L (en) PROCEDURE FOR MANUFACTURE OF GAMMA PYRONES
GB1128734A (en) New derivatives of 6,11-dihydro-dibenzo-[b,e]-oxepine
KR830007641A (en) Isomerization of 8-Substituted Elgoline Derivatives
GB1099558A (en) A process for the preparation of new pharmacologically active terpene esters
KR830007592A (en) Pharmacologically active 4- [2-hydroxy-4- (substituted) phenyl] naphthalene-2 (1H) -one and 2-ols, their derivatives and methods of preparing these intermediates
DE3483192D1 (en) METHOD FOR PRODUCING OXABICYCLOALKAN COMPOUNDS.
ATE1643T1 (en) SILYL-BENZIMIDAZOLE-2-CARBAMINATE, PROCESS FOR THEIR PRODUCTION AND USE AS FUNGICIDES.
SE7600729L (en) PROSTAGLAND INFORMATIONS
KR850001742A (en) Process for preparing cumalic acid ester
ATE1008T1 (en) ISOMERIZATION OF 3-AZABI CYCLO(3.1.0)HEXANE DERIVATIVES.
ES502668A0 (en) PROCEDURE FOR PREPARING A HYDROCARBON SOLUTION OF AN ALKYL SODIUM COMPOUND
IE45609L (en) Process for the preparation of prostaglandins
Anderson et al. Synthesis of 8-methoxy-15, 16-dinor-6, 8, 10-trichothecatriene 12, 13. alpha.-epoxide and 12, 13. beta.-epoxide as potential antineoplastic agents
US4242268A (en) Bicyclic lactones
GB992797A (en) Improvements in or relating to 6,7-seco-morphinan-6,7-dioic acid derivatives and their preparation
GB1429697A (en) Method for producing isonitrosomalonic esters
GB1374925A (en) Dihydroxy phenyl benzyl ketone derivatives
ES419202A1 (en) Process for manufacture of {62 -(3-oxo-7 {60 -thioa cyl-17{62 -hydroxy-4-androstene-17{60 -yl) propionic acid {65 -lactones
GB1199862A (en) A Process for the Manufacture of Dihydro-Benzdiaz[1,4]Epines
ES468143A1 (en) Production of phosphoric acid esters of n-hydroxyalkyl perfluoroalkane sulphonamides
ES435698A1 (en) A method for the preparation of acid 3- (benzoil trisustituido) -propionico. (Machine-translation by Google Translate, not legally binding)

Legal Events

Date Code Title Description
NAL Patent in force

Ref document number: 7910631-6

Format of ref document f/p: F