AT364356B - METHOD FOR PRODUCING NEW 4-HALOGEN DIHYDROPYRAN INTERMEDIATE PRODUCTS - Google Patents

METHOD FOR PRODUCING NEW 4-HALOGEN DIHYDROPYRAN INTERMEDIATE PRODUCTS

Info

Publication number
AT364356B
AT364356B AT0124380A AT124380A AT364356B AT 364356 B AT364356 B AT 364356B AT 0124380 A AT0124380 A AT 0124380A AT 124380 A AT124380 A AT 124380A AT 364356 B AT364356 B AT 364356B
Authority
AT
Austria
Prior art keywords
halogen
intermediate products
producing new
dihydropyran
dihydropyran intermediate
Prior art date
Application number
AT0124380A
Other languages
German (de)
Other versions
ATA124380A (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
Priority claimed from US05/721,885 external-priority patent/US4082717A/en
Application filed by Pfizer filed Critical Pfizer
Publication of ATA124380A publication Critical patent/ATA124380A/en
Application granted granted Critical
Publication of AT364356B publication Critical patent/AT364356B/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D309/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/32Heterocyclic 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07DHETEROCYCLIC COMPOUNDS
    • C07D309/00Heterocyclic compounds containing six-membered rings having one oxygen atom as the only ring hetero atom, not condensed with other rings
    • C07D309/34Heterocyclic 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
    • C07D309/36Heterocyclic 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
    • C07D309/40Oxygen 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)
  • Saccharide Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Furan Compounds (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Picture Signal Circuits (AREA)
  • Processing Of Color Television Signals (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Seasonings (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Control Of El Displays (AREA)
AT0124380A 1976-08-02 1980-03-06 METHOD FOR PRODUCING NEW 4-HALOGEN DIHYDROPYRAN INTERMEDIATE PRODUCTS AT364356B (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 (2)

Publication Number Publication Date
ATA124380A ATA124380A (en) 1981-03-15
AT364356B true AT364356B (en) 1981-10-12

Family

ID=27108548

Family Applications (3)

Application Number Title Priority Date Filing Date
AT0440477A AT362790B (en) 1976-08-02 1977-06-22 METHOD FOR PRODUCING GAMMA PYRON
AT0124480A AT363470B (en) 1976-08-02 1980-03-06 METHOD FOR PRODUCING GAMMA PYRON
AT0124380A AT364356B (en) 1976-08-02 1980-03-06 METHOD FOR PRODUCING NEW 4-HALOGEN DIHYDROPYRAN INTERMEDIATE PRODUCTS

Family Applications Before (2)

Application Number Title Priority Date Filing Date
AT0440477A AT362790B (en) 1976-08-02 1977-06-22 METHOD FOR PRODUCING GAMMA PYRON
AT0124480A AT363470B (en) 1976-08-02 1980-03-06 METHOD FOR PRODUCING GAMMA PYRON

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) DE2728499C2 (en)
DK (4) DK153483C (en)
EG (1) EG13080A (en)
ES (5) ES459994A1 (en)
FI (6) FI72722C (en)
FR (1) FR2372821A1 (en)
GB (5) GB1538374A (en)
GR (1) GR68938B (en)
HK (5) HK30581A (en)
HU (4) HU185686B (en)
IE (5) IE45644B1 (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
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
CN101679263B (en) * 2007-03-28 2014-01-15 阿普泰克斯科技公司 Fluorinated derivatives of deferiprone
EA022751B1 (en) 2008-04-25 2016-02-29 Апотекс Текнолоджиз Инк. Liquid formulation for deferiprone with masked taste
SI2448922T1 (en) 2009-07-03 2014-12-31 Apotex Technologies 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
DK153483C (en) 1988-11-28
IE790587L (en) 1978-02-02
EG13080A (en) 1981-03-31
NO151365C (en) 1985-03-27
PT66694A (en) 1977-07-01
FI831702A0 (en) 1983-05-16
NO150042C (en) 1984-08-15
ES470744A1 (en) 1979-01-16
ES459994A1 (en) 1978-11-16
HU186026B (en) 1985-05-28
FI831701A0 (en) 1983-05-16
HK30381A (en) 1981-07-10
CH625798A5 (en) 1981-10-15
TR19652A (en) 1979-09-17
IE790585L (en) 1978-02-02
NO151365B (en) 1984-12-17
NO150559B (en) 1984-07-30
DK326186A (en) 1986-07-09
YU146977A (en) 1983-06-30
SU1015826A3 (en) 1983-04-30
NL8105540A (en) 1982-04-01
MX4597E (en) 1982-06-25
FI72720C (en) 1987-07-10
DK153484B (en) 1988-07-18
FI73424B (en) 1987-06-30
RO78953A (en) 1982-04-12
PL215008A1 (en) 1979-12-17
FI831703L (en) 1983-05-16
FI831701L (en) 1983-05-16
BG28989A4 (en) 1980-08-15
YU166383A (en) 1986-02-28
RO78951A2 (en) 1982-04-12
DK326086A (en) 1986-07-09
DK153483B (en) 1988-07-18
SE452616B (en) 1987-12-07
DD132494A5 (en) 1978-10-04
SE8200520L (en) 1982-01-29
SE444565B (en) 1986-04-21
DK153401C (en) 1988-11-28
CA1110254A (en) 1981-10-06
NL182476B (en) 1987-10-16
GB1538373A (en) 1979-01-17
HK30681A (en) 1981-07-10
AU2601777A (en) 1978-09-21
CS203921B2 (en) 1981-03-31
DK326186D0 (en) 1986-07-09
JPS5618596B2 (en) 1981-04-30
NO150559C (en) 1984-11-07
FI72721C (en) 1987-07-10
NL170955B (en) 1982-08-16
GR68938B (en) 1982-03-29
SU955859A3 (en) 1982-08-30
DK154079C (en) 1989-02-27
YU40166B (en) 1985-08-31
NL8105538A (en) 1982-04-01
DK153401B (en) 1988-07-11
HK30581A (en) 1981-07-10
PH13926A (en) 1980-11-04
IE790584L (en) 1978-02-02
NO150560C (en) 1984-11-07
DE2728499A1 (en) 1978-02-09
IE45643B1 (en) 1982-10-20
IE45642B1 (en) 1982-10-20
NL7706811A (en) 1978-02-06
AT363470B (en) 1981-08-10
FI72119C (en) 1987-04-13
NO821848L (en) 1978-02-03
NL8105537A (en) 1982-04-01
PL115586B1 (en) 1981-04-30
PL199798A1 (en) 1979-08-27
NO772193L (en) 1978-02-03
JPS5420500B2 (en) 1979-07-23
PH13557A (en) 1980-06-26
NO150043B (en) 1984-04-30
SE445042B (en) 1986-05-26
JPS5618597B2 (en) 1981-04-30
SE8200521L (en) 1982-01-29
FI72721B (en) 1987-03-31
JPS5436267A (en) 1979-03-16
NL182805B (en) 1987-12-16
RO74367A (en) 1981-11-24
NL182476C (en) 1988-03-16
MY8100262A (en) 1981-12-31
NL182478B (en) 1987-10-16
NL8105539A (en) 1982-04-01
GB1538371A (en) 1979-01-17
FI831700A0 (en) 1983-05-16
FI831703A0 (en) 1983-05-16
GB1538372A (en) 1979-01-17
FI72119B (en) 1986-12-31
JPS5318578A (en) 1978-02-20
BE855965A (en) 1977-12-21
CH625235A5 (en) 1981-09-15
NO150561B (en) 1984-07-30
AT362790B (en) 1981-06-10
PL215006A1 (en) 1979-12-17
HU180040B (en) 1983-01-28
YU270382A (en) 1983-10-31
ES470743A1 (en) 1979-01-16
JPS5436269A (en) 1979-03-16
NL182477B (en) 1987-10-16
ATA440477A (en) 1980-11-15
IE45641L (en) 1978-02-02
NO150042B (en) 1984-04-30
FI72722C (en) 1987-07-10
YU274782A (en) 1983-12-31
CH626357A5 (en) 1981-11-13
HK30781A (en) 1981-07-10
SE8200519L (en) 1982-01-29
SE444564B (en) 1986-04-21
DK153484C (en) 1988-11-28
CA1117541A (en) 1982-02-02
DK325986D0 (en) 1986-07-09
GB1538375A (en) 1979-01-17
DK276177A (en) 1978-02-03
IT1106258B (en) 1985-11-11
YU42613B (en) 1988-10-31
ATA124480A (en) 1981-01-15
PH15185A (en) 1982-09-10
FI771934A7 (en) 1978-02-03
HK30481A (en) 1981-07-10
DK326086D0 (en) 1986-07-09
NL182478C (en) 1988-03-16
LU77600A1 (en) 1978-02-01
FI831700L (en) 1983-05-16
IE790586L (en) 1978-02-02
IE45644B1 (en) 1982-10-20
NO821850L (en) 1978-02-03
NO821847L (en) 1978-02-03
FI73424C (en) 1987-10-09
ES470746A1 (en) 1979-01-16
ES470745A1 (en) 1979-01-16
CA1095921A (en) 1981-02-17
IE45641B1 (en) 1982-10-20
SE445041B (en) 1986-05-26
BG28849A3 (en) 1980-07-15
JPS5436270A (en) 1979-03-16
SE433079B (en) 1984-05-07
BG29136A3 (en) 1980-09-15
DE2728499C2 (en) 1986-04-03
CH626358A5 (en) 1981-11-13
CS203922B2 (en) 1981-03-31
DE2760221C2 (en) 1989-10-05
DK154079B (en) 1988-10-10
NO834236L (en) 1978-02-03
NO821849L (en) 1978-02-03
NO150560B (en) 1984-07-30
PL115496B1 (en) 1981-04-30
NL170955C (en) 1983-01-17
JPS5436266A (en) 1979-03-16
PH13874A (en) 1980-10-24
JPS5436271A (en) 1979-03-16
MY8100287A (en) 1981-12-31
YU43190B (en) 1989-04-30
BG28988A4 (en) 1980-08-15
ATA124380A (en) 1981-03-15
GB1538374A (en) 1979-01-17
HU185686B (en) 1985-03-28
FI72722B (en) 1987-03-31
FI831704A0 (en) 1983-05-16
NO821851L (en) 1978-02-03
NO150561C (en) 1984-11-07
AR216080A1 (en) 1979-11-30
MY8100267A (en) 1981-12-31
FI72723C (en) 1987-07-10
FI72723B (en) 1987-03-31
NZ184342A (en) 1978-09-25
PL115497B1 (en) 1981-04-30
DE2760220C2 (en) 1987-08-20
NL182805C (en) 1988-05-16
RO78952A (en) 1982-04-12
JPS5814433B2 (en) 1983-03-18
BR7703970A (en) 1978-07-04
DK325986A (en) 1986-07-09
JPS5436268A (en) 1979-03-16
JPS5729034B2 (en) 1982-06-19
PL215007A1 (en) 1979-12-17
FR2372821B1 (en) 1980-10-17
SE7707035L (en) 1978-02-03
FR2372821A1 (en) 1978-06-30
FI72720B (en) 1987-03-31
PT66694B (en) 1978-11-17
NO150043C (en) 1984-08-15
SE8200522L (en) 1982-01-29
SE8200518L (en) 1982-01-29
PH14625A (en) 1981-10-12
IE45645B1 (en) 1982-10-20
HU185687B (en) 1985-03-28
CS203923B2 (en) 1981-03-31
NL182477C (en) 1988-03-16
FI831702L (en) 1983-05-16
FI831704L (en) 1983-05-16

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Legal Events

Date Code Title Description
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee
ELA Expired due to lapse of time