IT1106258B - PROCESS TO PREPARE RANGE-PYRONS - Google Patents

PROCESS TO PREPARE RANGE-PYRONS

Info

Publication number
IT1106258B
IT1106258B IT49950/77A IT4995077A IT1106258B IT 1106258 B IT1106258 B IT 1106258B IT 49950/77 A IT49950/77 A IT 49950/77A IT 4995077 A IT4995077 A IT 4995077A IT 1106258 B IT1106258 B IT 1106258B
Authority
IT
Italy
Prior art keywords
pyrons
prepare
range
prepare range
Prior art date
Application number
IT49950/77A
Other languages
Italian (it)
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
Priority claimed from US05/721,885 external-priority patent/US4082717A/en
Application filed by Pfizer filed Critical Pfizer
Application granted granted Critical
Publication of IT1106258B publication Critical patent/IT1106258B/en

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

Landscapes

  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Pyrane Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyridine Compounds (AREA)
  • Cosmetics (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Furan Compounds (AREA)
  • Saccharide Compounds (AREA)
  • Picture Signal Circuits (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Processing Of Color Television Signals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Seasonings (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Control Of El Displays (AREA)
IT49950/77A 1976-08-02 1977-06-23 PROCESS TO PREPARE RANGE-PYRONS IT1106258B (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
IT1106258B true IT1106258B (en) 1985-11-11

Family

ID=27108548

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49950/77A IT1106258B (en) 1976-08-02 1977-06-23 PROCESS TO PREPARE RANGE-PYRONS

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) DE2760220C2 (en)
DK (4) DK153483C (en)
EG (1) EG13080A (en)
ES (5) ES459994A1 (en)
FI (6) FI72722C (en)
FR (1) FR2372821A1 (en)
GB (5) GB1538375A (en)
GR (1) GR68938B (en)
HK (5) HK30781A (en)
HU (4) HU186026B (en)
IE (5) IE45642B1 (en)
IT (1) IT1106258B (en)
LU (1) LU77600A1 (en)
MX (1) MX4597E (en)
MY (3) MY8100267A (en)
NL (5) NL170955C (en)
NO (7) NO150561C (en)
NZ (1) NZ184342A (en)
PH (5) PH13557A (en)
PL (4) PL215008A1 (en)
PT (1) PT66694B (en)
RO (4) RO74367A (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
JPS5444675A (en) * 1977-09-12 1979-04-09 Shin Etsu Chem Co Ltd Production of 3-hydroxy-4-pyrone analog
FR2402654A1 (en) * 1977-09-12 1979-04-06 Shinetsu Chemical Co Tetra:hydro-pyranone derivs. - useful as intermediates for cpds. used as food flavours
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
CA2627529A1 (en) * 2007-03-28 2008-09-28 Apotex Technologies Inc. Fluorinated derivatives of deferiprone
SI2268282T1 (en) 2008-04-25 2015-01-30 Apotex Technologies Inc. Liquid formulation for deferiprone with palatable taste
BR112012000079A2 (en) 2009-07-03 2017-07-25 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
AR216080A1 (en) 1979-11-30
CS203922B2 (en) 1981-03-31
RO78952A (en) 1982-04-12
JPS5436271A (en) 1979-03-16
TR19652A (en) 1979-09-17
PL115497B1 (en) 1981-04-30
RO74367A (en) 1981-11-24
IE45644B1 (en) 1982-10-20
NL182476C (en) 1988-03-16
HK30681A (en) 1981-07-10
GB1538375A (en) 1979-01-17
NL182476B (en) 1987-10-16
NL182477B (en) 1987-10-16
NL8105539A (en) 1982-04-01
DE2760220C2 (en) 1987-08-20
PH14625A (en) 1981-10-12
JPS5420500B2 (en) 1979-07-23
AU2601777A (en) 1978-09-21
NO150561B (en) 1984-07-30
DK153483B (en) 1988-07-18
NL182478B (en) 1987-10-16
FI72723C (en) 1987-07-10
BG28988A4 (en) 1980-08-15
IE45641L (en) 1978-02-02
FI72119B (en) 1986-12-31
NO821848L (en) 1978-02-03
RO78951A2 (en) 1982-04-12
SE7707035L (en) 1978-02-03
DK153401C (en) 1988-11-28
JPS5436268A (en) 1979-03-16
IE45643B1 (en) 1982-10-20
RO78953A (en) 1982-04-12
DE2728499A1 (en) 1978-02-09
CA1095921A (en) 1981-02-17
IE45641B1 (en) 1982-10-20
FI72720B (en) 1987-03-31
AT363470B (en) 1981-08-10
NO150560B (en) 1984-07-30
JPS5729034B2 (en) 1982-06-19
DK326186A (en) 1986-07-09
NO772193L (en) 1978-02-03
PL215006A1 (en) 1979-12-17
FI831703A0 (en) 1983-05-16
MX4597E (en) 1982-06-25
YU146977A (en) 1983-06-30
NO150561C (en) 1984-11-07
DK325986A (en) 1986-07-09
FI72119C (en) 1987-04-13
YU166383A (en) 1986-02-28
DK153484B (en) 1988-07-18
FI831702A0 (en) 1983-05-16
FI831701L (en) 1983-05-16
GB1538372A (en) 1979-01-17
ATA440477A (en) 1980-11-15
PL215007A1 (en) 1979-12-17
CA1110254A (en) 1981-10-06
PH15185A (en) 1982-09-10
JPS5618596B2 (en) 1981-04-30
NO150559C (en) 1984-11-07
NL182805C (en) 1988-05-16
DE2728499C2 (en) 1986-04-03
CS203921B2 (en) 1981-03-31
DK326186D0 (en) 1986-07-09
GB1538373A (en) 1979-01-17
NL8105537A (en) 1982-04-01
HU186026B (en) 1985-05-28
ATA124380A (en) 1981-03-15
IE790584L (en) 1978-02-02
SU955859A3 (en) 1982-08-30
BG28989A4 (en) 1980-08-15
SE452616B (en) 1987-12-07
FI72723B (en) 1987-03-31
NL8105538A (en) 1982-04-01
FR2372821A1 (en) 1978-06-30
NO151365B (en) 1984-12-17
NL170955B (en) 1982-08-16
PH13926A (en) 1980-11-04
JPS5814433B2 (en) 1983-03-18
FI831704L (en) 1983-05-16
FI72721B (en) 1987-03-31
JPS5436270A (en) 1979-03-16
DK153483C (en) 1988-11-28
SE445041B (en) 1986-05-26
NO150042C (en) 1984-08-15
NO834236L (en) 1978-02-03
FI72722B (en) 1987-03-31
BG29136A3 (en) 1980-09-15
PL115496B1 (en) 1981-04-30
DK153401B (en) 1988-07-11
HK30581A (en) 1981-07-10
DE2760221C2 (en) 1989-10-05
GB1538371A (en) 1979-01-17
SU1015826A3 (en) 1983-04-30
MY8100287A (en) 1981-12-31
YU43190B (en) 1989-04-30
NL182805B (en) 1987-12-16
YU270382A (en) 1983-10-31
SE8200522L (en) 1982-01-29
DK153484C (en) 1988-11-28
PH13874A (en) 1980-10-24
DK154079C (en) 1989-02-27
NO821849L (en) 1978-02-03
FI72720C (en) 1987-07-10
DK154079B (en) 1988-10-10
NO821851L (en) 1978-02-03
CH625798A5 (en) 1981-10-15
DK276177A (en) 1978-02-03
CA1117541A (en) 1982-02-02
JPS5436269A (en) 1979-03-16
FI831700L (en) 1983-05-16
HK30381A (en) 1981-07-10
ES470746A1 (en) 1979-01-16
JPS5436266A (en) 1979-03-16
SE8200518L (en) 1982-01-29
NO150560C (en) 1984-11-07
SE8200519L (en) 1982-01-29
YU40166B (en) 1985-08-31
IE790587L (en) 1978-02-02
GR68938B (en) 1982-03-29
FR2372821B1 (en) 1980-10-17
NO821850L (en) 1978-02-03
NO821847L (en) 1978-02-03
HU180040B (en) 1983-01-28
CS203923B2 (en) 1981-03-31
DD132494A5 (en) 1978-10-04
IE45645B1 (en) 1982-10-20
AT364356B (en) 1981-10-12
ES470744A1 (en) 1979-01-16
NO150043B (en) 1984-04-30
PL199798A1 (en) 1979-08-27
ES470743A1 (en) 1979-01-16
HK30481A (en) 1981-07-10
NZ184342A (en) 1978-09-25
IE45642B1 (en) 1982-10-20
PL115586B1 (en) 1981-04-30
YU274782A (en) 1983-12-31
YU42613B (en) 1988-10-31
FI831700A0 (en) 1983-05-16
LU77600A1 (en) 1978-02-01
ES470745A1 (en) 1979-01-16
FI831703L (en) 1983-05-16
NL170955C (en) 1983-01-17
FI73424B (en) 1987-06-30
JPS5618597B2 (en) 1981-04-30
SE8200521L (en) 1982-01-29
IE790586L (en) 1978-02-02
PL215008A1 (en) 1979-12-17
AT362790B (en) 1981-06-10
ATA124480A (en) 1981-01-15
DK325986D0 (en) 1986-07-09
CH626358A5 (en) 1981-11-13
NO151365C (en) 1985-03-27
DK326086A (en) 1986-07-09
FI72722C (en) 1987-07-10
NO150042B (en) 1984-04-30
BG28849A3 (en) 1980-07-15
IE790585L (en) 1978-02-02
NL8105540A (en) 1982-04-01
PH13557A (en) 1980-06-26
SE445042B (en) 1986-05-26
FI72721C (en) 1987-07-10
SE444564B (en) 1986-04-21
GB1538374A (en) 1979-01-17
HU185686B (en) 1985-03-28
FI831702L (en) 1983-05-16
MY8100262A (en) 1981-12-31
MY8100267A (en) 1981-12-31
ES459994A1 (en) 1978-11-16
FI831704A0 (en) 1983-05-16
SE444565B (en) 1986-04-21
NL182477C (en) 1988-03-16
FI73424C (en) 1987-10-09
HK30781A (en) 1981-07-10
PT66694B (en) 1978-11-17
NL182478C (en) 1988-03-16
EG13080A (en) 1981-03-31
BE855965A (en) 1977-12-21
SE433079B (en) 1984-05-07
HU185687B (en) 1985-03-28
JPS5436267A (en) 1979-03-16
NO150043C (en) 1984-08-15
CH626357A5 (en) 1981-11-13
FI771934A (en) 1978-02-03
DK326086D0 (en) 1986-07-09
CH625235A5 (en) 1981-09-15
JPS5318578A (en) 1978-02-20
BR7703970A (en) 1978-07-04
FI831701A0 (en) 1983-05-16
SE8200520L (en) 1982-01-29
PT66694A (en) 1977-07-01
NO150559B (en) 1984-07-30
NL7706811A (en) 1978-02-06

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950413