ES470744A1 - Process for the preparation of gamma-pyrones - Google Patents

Process for the preparation of gamma-pyrones

Info

Publication number
ES470744A1
ES470744A1 ES470744A ES470744A ES470744A1 ES 470744 A1 ES470744 A1 ES 470744A1 ES 470744 A ES470744 A ES 470744A ES 470744 A ES470744 A ES 470744A ES 470744 A1 ES470744 A1 ES 470744A1
Authority
ES
Spain
Prior art keywords
pyrones
gamma
preparation
formula
reaction
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES470744A
Other languages
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfizer Inc
Original Assignee
Pfizer Inc
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
Priority claimed from US05/721,885 external-priority patent/US4082717A/en
Application filed by Pfizer Inc filed Critical Pfizer Inc
Publication of ES470744A1 publication Critical patent/ES470744A1/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Abstract

The gamma-pyrones of formula I in which the symbols have the meaning given in Claim 1 are obtained by a simple and economic "one-pot" process by reaction of a furfuryl alcohol of formula III with at least 2 equivalents of a halogenated oxidising agent, in aqueous solution at a temperature of between -50 DEG and +50 DEG C, and then the reaction mixture is heated until hydrolysis of the intermediate formed is virtually complete. The gamma-pyrones obtained can be used as products which enhance flavour and fragrance in food and cosmetic preparations.
ES470744A 1976-08-02 1978-06-13 Process for the preparation of gamma-pyrones Expired ES470744A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US71090176A 1976-08-02 1976-08-02
US05/721,885 US4082717A (en) 1976-08-02 1976-09-09 Preparation of gamma-pyrones

Publications (1)

Publication Number Publication Date
ES470744A1 true ES470744A1 (en) 1979-01-16

Family

ID=27108548

Family Applications (5)

Application Number Title Priority Date Filing Date
ES459994A Expired ES459994A1 (en) 1976-08-02 1977-06-22 Process for the preparation of gamma-pyrones
ES470744A Expired ES470744A1 (en) 1976-08-02 1978-06-13 Process for the preparation of gamma-pyrones
ES470743A Expired ES470743A1 (en) 1976-08-02 1978-06-13 Process for the preparation of gamma-pyrones
ES470746A Expired ES470746A1 (en) 1976-08-02 1978-06-13 Process for the preparation of gamma-pyrones
ES470745A Expired ES470745A1 (en) 1976-08-02 1978-06-13 Process for the preparation of gamma-pyrones

Family Applications Before (1)

Application Number Title Priority Date Filing Date
ES459994A Expired ES459994A1 (en) 1976-08-02 1977-06-22 Process for the preparation of gamma-pyrones

Family Applications After (3)

Application Number Title Priority Date Filing Date
ES470743A Expired ES470743A1 (en) 1976-08-02 1978-06-13 Process for the preparation of gamma-pyrones
ES470746A Expired ES470746A1 (en) 1976-08-02 1978-06-13 Process for the preparation of gamma-pyrones
ES470745A Expired ES470745A1 (en) 1976-08-02 1978-06-13 Process for the preparation of gamma-pyrones

Country Status (36)

Country Link
JP (7) JPS5318578A (en)
AR (1) AR216080A1 (en)
AT (3) AT362790B (en)
BE (1) BE855965A (en)
BG (4) BG29136A3 (en)
BR (1) BR7703970A (en)
CA (3) CA1095921A (en)
CH (4) CH625798A5 (en)
CS (3) CS203921B2 (en)
DD (1) DD132494A5 (en)
DE (3) DE2760221C2 (en)
DK (4) DK153483C (en)
EG (1) EG13080A (en)
ES (5) ES459994A1 (en)
FI (6) FI72722C (en)
FR (1) FR2372821A1 (en)
GB (5) GB1538372A (en)
GR (1) GR68938B (en)
HK (5) HK30581A (en)
HU (4) HU186026B (en)
IE (5) IE45643B1 (en)
IT (1) IT1106258B (en)
LU (1) LU77600A1 (en)
MX (1) MX4597E (en)
MY (3) MY8100262A (en)
NL (5) NL170955C (en)
NO (7) NO150561C (en)
NZ (1) NZ184342A (en)
PH (5) PH13557A (en)
PL (4) PL115497B1 (en)
PT (1) PT66694B (en)
RO (4) RO78951A2 (en)
SE (6) SE433079B (en)
SU (2) SU955859A3 (en)
TR (1) TR19652A (en)
YU (4) YU40166B (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1095921A (en) 1976-08-02 1981-02-17 Thomas M. Brennan Preparation of gamma-pyrones
FR2402654A1 (en) * 1977-09-12 1979-04-06 Shinetsu Chemical Co Tetra:hydro-pyranone derivs. - useful as intermediates for cpds. used as food flavours
JPS5444675A (en) * 1977-09-12 1979-04-09 Shin Etsu Chem Co Ltd Production of 3-hydroxy-4-pyrone analog
JPS5741226U (en) * 1980-08-20 1982-03-05
JPS59135008U (en) * 1983-02-28 1984-09-10 松下電工株式会社 Distribution board device
JPS6050245A (en) * 1983-08-29 1985-03-19 Nissan Motor Co Ltd Fuel injection device in internal-combustion engine
JPH0226945Y2 (en) * 1985-09-11 1990-07-20
JP2586607B2 (en) * 1987-10-30 1997-03-05 日産化学工業株式会社 Production method of optically active alcohol
US8026261B2 (en) * 2007-03-28 2011-09-27 Apotex Technologies Inc. Fluorinated derivatives of deferiprone
PL2268282T3 (en) 2008-04-25 2015-04-30 Apotex Tech Inc Liquid formulation for deferiprone with palatable taste
PL2448922T3 (en) 2009-07-03 2015-02-27 Apotex Tech Inc Fluorinated derivatives of 3-hydroxypyridin-4-ones
WO2017168309A1 (en) * 2016-03-29 2017-10-05 Dr. Reddy’S Laboratories Limited Process for preparation of eribulin and intermediates thereof
CN108609456B (en) * 2016-12-13 2021-03-12 奥的斯电梯公司 Openable expansion panel and elevator suspended ceiling, elevator car and elevator system with same
CN111606879A (en) * 2020-05-25 2020-09-01 安徽金禾实业股份有限公司 Method for preparing 2-hydroxymethyl-3-alkoxy-4H-pyran-4-ketone by one-pot method

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3491122A (en) * 1966-09-14 1970-01-20 Monsanto Co Synthesis of 4-pyrones
US3547912A (en) * 1968-07-29 1970-12-15 American Home Prod Derivatives of 2h-pyran-3(6h)-ones and preparation thereof
JPS5145565B1 (en) * 1968-10-12 1976-12-04
US3621063A (en) * 1968-12-24 1971-11-16 Monsanto Co Unsaturated acyclic ketones
US3832357A (en) * 1971-05-26 1974-08-27 Daicel Ltd Process for preparation of 3-hydroxy-2-alkyl-4-pyrone
JPS5212166A (en) * 1975-07-17 1977-01-29 Tatsuya Shono Process for preparation of 4-pyron derivatives
IE42789B1 (en) * 1975-08-28 1980-10-22 Pfizer Preparation of gamma-pyrones
CA1095921A (en) * 1976-08-02 1981-02-17 Thomas M. Brennan Preparation of gamma-pyrones

Also Published As

Publication number Publication date
FI831701L (en) 1983-05-16
NO151365C (en) 1985-03-27
JPS5318578A (en) 1978-02-20
FI831700L (en) 1983-05-16
NO150042C (en) 1984-08-15
JPS5814433B2 (en) 1983-03-18
AU2601777A (en) 1978-09-21
NO772193L (en) 1978-02-03
YU43190B (en) 1989-04-30
NL182476B (en) 1987-10-16
DK276177A (en) 1978-02-03
PL115497B1 (en) 1981-04-30
EG13080A (en) 1981-03-31
JPS5436270A (en) 1979-03-16
SE433079B (en) 1984-05-07
CH626357A5 (en) 1981-11-13
CH625235A5 (en) 1981-09-15
DK153483C (en) 1988-11-28
BR7703970A (en) 1978-07-04
AR216080A1 (en) 1979-11-30
NZ184342A (en) 1978-09-25
NO150561C (en) 1984-11-07
NL8105540A (en) 1982-04-01
SE8200522L (en) 1982-01-29
JPS5618597B2 (en) 1981-04-30
SE8200521L (en) 1982-01-29
FI73424C (en) 1987-10-09
DE2760221C2 (en) 1989-10-05
JPS5436271A (en) 1979-03-16
NL182476C (en) 1988-03-16
JPS5436269A (en) 1979-03-16
FI831702A0 (en) 1983-05-16
ES470746A1 (en) 1979-01-16
NL182478B (en) 1987-10-16
NO821848L (en) 1978-02-03
FI73424B (en) 1987-06-30
FI831703L (en) 1983-05-16
GB1538372A (en) 1979-01-17
MY8100267A (en) 1981-12-31
TR19652A (en) 1979-09-17
NO150042B (en) 1984-04-30
ATA124480A (en) 1981-01-15
NL182805B (en) 1987-12-16
CA1117541A (en) 1982-02-02
NO150561B (en) 1984-07-30
NO150560B (en) 1984-07-30
FI771934A (en) 1978-02-03
PL215008A1 (en) 1979-12-17
DK154079C (en) 1989-02-27
IE790586L (en) 1978-02-02
SE444564B (en) 1986-04-21
GR68938B (en) 1982-03-29
MY8100262A (en) 1981-12-31
NO150043B (en) 1984-04-30
NL182805C (en) 1988-05-16
RO78952A (en) 1982-04-12
HK30781A (en) 1981-07-10
ES470745A1 (en) 1979-01-16
SU1015826A3 (en) 1983-04-30
HK30381A (en) 1981-07-10
DK153484C (en) 1988-11-28
GB1538371A (en) 1979-01-17
JPS5420500B2 (en) 1979-07-23
AT362790B (en) 1981-06-10
SE444565B (en) 1986-04-21
AT364356B (en) 1981-10-12
SE445042B (en) 1986-05-26
FR2372821B1 (en) 1980-10-17
SE8200518L (en) 1982-01-29
RO78951A2 (en) 1982-04-12
HK30681A (en) 1981-07-10
NL8105537A (en) 1982-04-01
FI72720B (en) 1987-03-31
FI72723C (en) 1987-07-10
IE45645B1 (en) 1982-10-20
YU270382A (en) 1983-10-31
AT363470B (en) 1981-08-10
FI72721B (en) 1987-03-31
JPS5618596B2 (en) 1981-04-30
NO150559C (en) 1984-11-07
FI831703A0 (en) 1983-05-16
NL182478C (en) 1988-03-16
FI72119B (en) 1986-12-31
NO151365B (en) 1984-12-17
FI72722C (en) 1987-07-10
IE45641B1 (en) 1982-10-20
HK30481A (en) 1981-07-10
FI72721C (en) 1987-07-10
SE445041B (en) 1986-05-26
PL115586B1 (en) 1981-04-30
CH625798A5 (en) 1981-10-15
FI831704A0 (en) 1983-05-16
SE452616B (en) 1987-12-07
CS203922B2 (en) 1981-03-31
NO821850L (en) 1978-02-03
JPS5436267A (en) 1979-03-16
RO74367A (en) 1981-11-24
DK326086A (en) 1986-07-09
NL170955B (en) 1982-08-16
SU955859A3 (en) 1982-08-30
DE2728499C2 (en) 1986-04-03
SE8200519L (en) 1982-01-29
YU146977A (en) 1983-06-30
HU186026B (en) 1985-05-28
NO821851L (en) 1978-02-03
IE45644B1 (en) 1982-10-20
NL182477B (en) 1987-10-16
IE790584L (en) 1978-02-02
ATA440477A (en) 1980-11-15
NO821847L (en) 1978-02-03
DK153401B (en) 1988-07-11
IE790585L (en) 1978-02-02
BG29136A3 (en) 1980-09-15
FI831701A0 (en) 1983-05-16
JPS5436268A (en) 1979-03-16
DK326086D0 (en) 1986-07-09
ES459994A1 (en) 1978-11-16
NL7706811A (en) 1978-02-06
PH13557A (en) 1980-06-26
DK154079B (en) 1988-10-10
PH14625A (en) 1981-10-12
PL199798A1 (en) 1979-08-27
DK325986D0 (en) 1986-07-09
GB1538373A (en) 1979-01-17
MX4597E (en) 1982-06-25
CS203923B2 (en) 1981-03-31
NL8105539A (en) 1982-04-01
CA1095921A (en) 1981-02-17
FI72723B (en) 1987-03-31
PH15185A (en) 1982-09-10
IT1106258B (en) 1985-11-11
YU274782A (en) 1983-12-31
NL182477C (en) 1988-03-16
BG28989A4 (en) 1980-08-15
JPS5436266A (en) 1979-03-16
SE7707035L (en) 1978-02-03
FI831702L (en) 1983-05-16
DD132494A5 (en) 1978-10-04
DK326186A (en) 1986-07-09
FI72720C (en) 1987-07-10
NO150559B (en) 1984-07-30
CA1110254A (en) 1981-10-06
BG28849A3 (en) 1980-07-15
NO834236L (en) 1978-02-03
FI831700A0 (en) 1983-05-16
JPS5729034B2 (en) 1982-06-19
BE855965A (en) 1977-12-21
NO150560C (en) 1984-11-07
PL215006A1 (en) 1979-12-17
PH13874A (en) 1980-10-24
ES470743A1 (en) 1979-01-16
PL215007A1 (en) 1979-12-17
IE45642B1 (en) 1982-10-20
PT66694B (en) 1978-11-17
DE2760220C2 (en) 1987-08-20
FR2372821A1 (en) 1978-06-30
SE8200520L (en) 1982-01-29
DK153483B (en) 1988-07-18
PH13926A (en) 1980-11-04
DK153484B (en) 1988-07-18
CH626358A5 (en) 1981-11-13
IE45641L (en) 1978-02-02
HU180040B (en) 1983-01-28
HU185687B (en) 1985-03-28
FI72722B (en) 1987-03-31
NL170955C (en) 1983-01-17
GB1538374A (en) 1979-01-17
HU185686B (en) 1985-03-28
YU166383A (en) 1986-02-28
IE45643B1 (en) 1982-10-20
GB1538375A (en) 1979-01-17
RO78953A (en) 1982-04-12
BG28988A4 (en) 1980-08-15
MY8100287A (en) 1981-12-31
FI72119C (en) 1987-04-13
DE2728499A1 (en) 1978-02-09
CS203921B2 (en) 1981-03-31
DK326186D0 (en) 1986-07-09
DK153401C (en) 1988-11-28
HK30581A (en) 1981-07-10
LU77600A1 (en) 1978-02-01
NL8105538A (en) 1982-04-01
IE790587L (en) 1978-02-02
YU40166B (en) 1985-08-31
YU42613B (en) 1988-10-31
PT66694A (en) 1977-07-01
ATA124380A (en) 1981-03-15
PL115496B1 (en) 1981-04-30
FI831704L (en) 1983-05-16
NO821849L (en) 1978-02-03
DK325986A (en) 1986-07-09
NO150043C (en) 1984-08-15

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Legal Events

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PC1A Transfer granted