PH14625A - Halo dihydropyrans intermediates and preparation thereof - Google Patents

Halo dihydropyrans intermediates and preparation thereof

Info

Publication number
PH14625A
PH14625A PH22149A PH22149A PH14625A PH 14625 A PH14625 A PH 14625A PH 22149 A PH22149 A PH 22149A PH 22149 A PH22149 A PH 22149A PH 14625 A PH14625 A PH 14625A
Authority
PH
Philippines
Prior art keywords
dihydropyrans
intermediates
halo
preparation
halo dihydropyrans
Prior art date
Application number
PH22149A
Inventor
Thomas M Brennan
Donald E Kuhla
Daniel P Brannegan
Paul D Weeks
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 PH14625A publication Critical patent/PH14625A/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)
  • Pyridine Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Cosmetics (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Saccharide Compounds (AREA)
  • Furan Compounds (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Picture Signal Circuits (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Processing Of Color Television Signals (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Control Of El Displays (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Seasonings (AREA)
PH22149A 1976-08-02 1979-02-01 Halo dihydropyrans intermediates and preparation thereof PH14625A (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
PH14625A true PH14625A (en) 1981-10-12

Family

ID=27108548

Family Applications (5)

Application Number Title Priority Date Filing Date
PH19887A PH13557A (en) 1976-08-02 1977-06-17 Preparation of gamma-pyrones
PH20745A PH15185A (en) 1976-08-02 1978-02-03 Preparation of gamma-pyrones
PH20746A PH13926A (en) 1976-08-02 1978-02-03 4-halo dihydropyran compound and the preparation thereof
PH22149A PH14625A (en) 1976-08-02 1979-02-01 Halo dihydropyrans intermediates and preparation thereof
PH22150A PH13874A (en) 1976-08-02 1979-02-01 Preparation of 6-substituted-dihydropyrams

Family Applications Before (3)

Application Number Title Priority Date Filing Date
PH19887A PH13557A (en) 1976-08-02 1977-06-17 Preparation of gamma-pyrones
PH20745A PH15185A (en) 1976-08-02 1978-02-03 Preparation of gamma-pyrones
PH20746A PH13926A (en) 1976-08-02 1978-02-03 4-halo dihydropyran compound and the preparation thereof

Family Applications After (1)

Application Number Title Priority Date Filing Date
PH22150A PH13874A (en) 1976-08-02 1979-02-01 Preparation of 6-substituted-dihydropyrams

Country Status (36)

Country Link
JP (7) JPS5318578A (en)
AR (1) AR216080A1 (en)
AT (3) AT362790B (en)
BE (1) BE855965A (en)
BG (4) BG28849A3 (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) GB1538373A (en)
GR (1) GR68938B (en)
HK (5) HK30481A (en)
HU (4) HU186026B (en)
IE (5) IE45641B1 (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) PL115496B1 (en)
PT (1) PT66694B (en)
RO (4) RO78953A (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
EP2134688B1 (en) 2007-03-28 2016-10-05 Apotex Technologies Inc. Fluorinated derivatives of deferiprone
PT2268282E (en) 2008-04-25 2015-02-05 Apotex Technologies Inc Liquid formulation for deferiprone with palatable taste
SG177462A1 (en) 2009-07-03 2012-02-28 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
BG29136A3 (en) 1980-09-15
DK325986A (en) 1986-07-09
FI72723C (en) 1987-07-10
MY8100287A (en) 1981-12-31
SE8200518L (en) 1982-01-29
NO150561C (en) 1984-11-07
SE7707035L (en) 1978-02-03
CS203921B2 (en) 1981-03-31
DK326186D0 (en) 1986-07-09
NO821848L (en) 1978-02-03
DE2760220C2 (en) 1987-08-20
JPS5436267A (en) 1979-03-16
NO150042B (en) 1984-04-30
PT66694A (en) 1977-07-01
FI72723B (en) 1987-03-31
YU146977A (en) 1983-06-30
NL182476C (en) 1988-03-16
HK30581A (en) 1981-07-10
YU274782A (en) 1983-12-31
NL182477B (en) 1987-10-16
JPS5436266A (en) 1979-03-16
DK276177A (en) 1978-02-03
SU1015826A3 (en) 1983-04-30
JPS5729034B2 (en) 1982-06-19
DD132494A5 (en) 1978-10-04
NO772193L (en) 1978-02-03
SE8200520L (en) 1982-01-29
FI831701L (en) 1983-05-16
DK154079C (en) 1989-02-27
BG28849A3 (en) 1980-07-15
IE45641B1 (en) 1982-10-20
NL8105540A (en) 1982-04-01
YU43190B (en) 1989-04-30
NO834236L (en) 1978-02-03
JPS5436271A (en) 1979-03-16
FI831704A0 (en) 1983-05-16
NL182478B (en) 1987-10-16
BE855965A (en) 1977-12-21
EG13080A (en) 1981-03-31
YU166383A (en) 1986-02-28
FI72119C (en) 1987-04-13
NL182805C (en) 1988-05-16
CH626357A5 (en) 1981-11-13
DK326086A (en) 1986-07-09
ATA124380A (en) 1981-03-15
SE433079B (en) 1984-05-07
NL7706811A (en) 1978-02-06
NO150560C (en) 1984-11-07
ES459994A1 (en) 1978-11-16
CS203923B2 (en) 1981-03-31
NO821847L (en) 1978-02-03
YU270382A (en) 1983-10-31
AR216080A1 (en) 1979-11-30
ATA440477A (en) 1980-11-15
JPS5436268A (en) 1979-03-16
SE8200519L (en) 1982-01-29
CS203922B2 (en) 1981-03-31
JPS5436269A (en) 1979-03-16
NL8105539A (en) 1982-04-01
NO150559B (en) 1984-07-30
PH15185A (en) 1982-09-10
PL215008A1 (en) 1979-12-17
SE444565B (en) 1986-04-21
IE45643B1 (en) 1982-10-20
NO150043B (en) 1984-04-30
JPS5420500B2 (en) 1979-07-23
DK153484B (en) 1988-07-18
IT1106258B (en) 1985-11-11
IE790584L (en) 1978-02-02
DE2728499C2 (en) 1986-04-03
HK30481A (en) 1981-07-10
NO150559C (en) 1984-11-07
MX4597E (en) 1982-06-25
AT364356B (en) 1981-10-12
BG28988A4 (en) 1980-08-15
TR19652A (en) 1979-09-17
NO821851L (en) 1978-02-03
DK325986D0 (en) 1986-07-09
PL215007A1 (en) 1979-12-17
PL199798A1 (en) 1979-08-27
FI72722C (en) 1987-07-10
GB1538371A (en) 1979-01-17
FI831704L (en) 1983-05-16
FR2372821A1 (en) 1978-06-30
GB1538372A (en) 1979-01-17
FI72720C (en) 1987-07-10
NL170955C (en) 1983-01-17
NZ184342A (en) 1978-09-25
AT362790B (en) 1981-06-10
JPS5618596B2 (en) 1981-04-30
PL215006A1 (en) 1979-12-17
PT66694B (en) 1978-11-17
FI831702A0 (en) 1983-05-16
NO150042C (en) 1984-08-15
NL8105537A (en) 1982-04-01
CA1095921A (en) 1981-02-17
FI73424C (en) 1987-10-09
NO821849L (en) 1978-02-03
HU186026B (en) 1985-05-28
FR2372821B1 (en) 1980-10-17
PL115496B1 (en) 1981-04-30
DK326086D0 (en) 1986-07-09
DK153401B (en) 1988-07-11
NL182476B (en) 1987-10-16
BR7703970A (en) 1978-07-04
GB1538373A (en) 1979-01-17
NL8105538A (en) 1982-04-01
NL182478C (en) 1988-03-16
SE445041B (en) 1986-05-26
NO150043C (en) 1984-08-15
FI72721C (en) 1987-07-10
PL115586B1 (en) 1981-04-30
GB1538374A (en) 1979-01-17
HU185686B (en) 1985-03-28
YU42613B (en) 1988-10-31
NO150561B (en) 1984-07-30
BG28989A4 (en) 1980-08-15
CH625798A5 (en) 1981-10-15
ATA124480A (en) 1981-01-15
AT363470B (en) 1981-08-10
NL182477C (en) 1988-03-16
SU955859A3 (en) 1982-08-30
ES470745A1 (en) 1979-01-16
FI831700A0 (en) 1983-05-16
JPS5814433B2 (en) 1983-03-18
AU2601777A (en) 1978-09-21
ES470743A1 (en) 1979-01-16
GB1538375A (en) 1979-01-17
FI771934A7 (en) 1978-02-03
DK153484C (en) 1988-11-28
IE45642B1 (en) 1982-10-20
HK30381A (en) 1981-07-10
YU40166B (en) 1985-08-31
JPS5318578A (en) 1978-02-20
CA1117541A (en) 1982-02-02
MY8100267A (en) 1981-12-31
SE445042B (en) 1986-05-26
DK154079B (en) 1988-10-10
IE790585L (en) 1978-02-02
FI72721B (en) 1987-03-31
RO78953A (en) 1982-04-12
SE452616B (en) 1987-12-07
FI72119B (en) 1986-12-31
NO821850L (en) 1978-02-03
RO78952A (en) 1982-04-12
HU180040B (en) 1983-01-28
DK153401C (en) 1988-11-28
SE8200521L (en) 1982-01-29
PH13557A (en) 1980-06-26
HK30681A (en) 1981-07-10
GR68938B (en) 1982-03-29
PH13874A (en) 1980-10-24
CH625235A5 (en) 1981-09-15
FI831702L (en) 1983-05-16
NO151365B (en) 1984-12-17
NL170955B (en) 1982-08-16
MY8100262A (en) 1981-12-31
PH13926A (en) 1980-11-04
RO78951A2 (en) 1982-04-12
FI831701A0 (en) 1983-05-16
IE45645B1 (en) 1982-10-20
HU185687B (en) 1985-03-28
FI831703A0 (en) 1983-05-16
HK30781A (en) 1981-07-10
JPS5436270A (en) 1979-03-16
ES470744A1 (en) 1979-01-16
DE2728499A1 (en) 1978-02-09
JPS5618597B2 (en) 1981-04-30
IE45641L (en) 1978-02-02
FI831703L (en) 1983-05-16
DK326186A (en) 1986-07-09
FI831700L (en) 1983-05-16
SE8200522L (en) 1982-01-29
ES470746A1 (en) 1979-01-16
RO74367A (en) 1981-11-24
CH626358A5 (en) 1981-11-13
CA1110254A (en) 1981-10-06
NO150560B (en) 1984-07-30
NL182805B (en) 1987-12-16
DK153483B (en) 1988-07-18
DE2760221C2 (en) 1989-10-05
FI73424B (en) 1987-06-30
PL115497B1 (en) 1981-04-30
FI72720B (en) 1987-03-31
LU77600A1 (en) 1978-02-01
IE790586L (en) 1978-02-02
DK153483C (en) 1988-11-28
FI72722B (en) 1987-03-31
NO151365C (en) 1985-03-27
SE444564B (en) 1986-04-21
IE790587L (en) 1978-02-02
IE45644B1 (en) 1982-10-20

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