BG28849A3 - Method of obtaining of gamapyrons - Google Patents

Method of obtaining of gamapyrons

Info

Publication number
BG28849A3
BG28849A3 BG036892A BG3689277A BG28849A3 BG 28849 A3 BG28849 A3 BG 28849A3 BG 036892 A BG036892 A BG 036892A BG 3689277 A BG3689277 A BG 3689277A BG 28849 A3 BG28849 A3 BG 28849A3
Authority
BG
Bulgaria
Prior art keywords
obtaining
gamapyrons
gammapyrones
formulated
points
Prior art date
Application number
BG036892A
Other languages
Bulgarian (bg)
Inventor
Thomas Brennan
Daniel Brannegan
Paul Weeks
Donald Kuhla
Original Assignee
Pfizer Inc., a corporation organized аnd existing under the laws of the State of Delaware
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., a corporation organized аnd existing under the laws of the State of Delaware filed Critical Pfizer Inc., a corporation organized аnd existing under the laws of the State of Delaware
Publication of BG28849A3 publication Critical patent/BG28849A3/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)
  • Furan Compounds (AREA)
  • Saccharide Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Picture Signal Circuits (AREA)
  • Transforming Electric Information Into Light Information (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)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Control Of El Displays (AREA)

Abstract

Метод за получаване на гамапирони с формула.. Патентните претенции са формулирани в 12 точки.Method for obtaining gammapyrones of formula.. The patent claims are formulated in 12 points.

BG036892A 1976-08-02 1977-07-14 Method of obtaining of gamapyrons BG28849A3 (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
BG28849A3 true BG28849A3 (en) 1980-07-15

Family

ID=27108548

Family Applications (4)

Application Number Title Priority Date Filing Date
BG7742606A BG28988A4 (en) 1976-08-02 1977-07-14 Method of obtaining of 4- halo- dihydropropyrans
BG042608A BG29136A3 (en) 1976-08-02 1977-07-14 Method of obtaining of 6, 6'- oxybis (4- halo- 2h- pyran- 3(6h)- on
BG036892A BG28849A3 (en) 1976-08-02 1977-07-14 Method of obtaining of gamapyrons
BG7942607A BG28989A4 (en) 1976-08-02 1977-07-14 Method of obtaining of 6- substituated dihydropyrans

Family Applications Before (2)

Application Number Title Priority Date Filing Date
BG7742606A BG28988A4 (en) 1976-08-02 1977-07-14 Method of obtaining of 4- halo- dihydropropyrans
BG042608A BG29136A3 (en) 1976-08-02 1977-07-14 Method of obtaining of 6, 6'- oxybis (4- halo- 2h- pyran- 3(6h)- on

Family Applications After (1)

Application Number Title Priority Date Filing Date
BG7942607A BG28989A4 (en) 1976-08-02 1977-07-14 Method of obtaining of 6- substituated dihydropyrans

Country Status (36)

Country Link
JP (7) JPS5318578A (en)
AR (1) AR216080A1 (en)
AT (3) AT362790B (en)
BE (1) BE855965A (en)
BG (4) BG28988A4 (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) GB1538375A (en)
GR (1) GR68938B (en)
HK (5) HK30381A (en)
HU (4) HU186026B (en)
IE (5) IE45641B1 (en)
IT (1) IT1106258B (en)
LU (1) LU77600A1 (en)
MX (1) MX4597E (en)
MY (3) MY8100287A (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) 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
NZ600874A (en) 2007-03-28 2013-01-25 Apotex Technologies Inc Fluorinated derivatives of deferiprone
AP2010005454A0 (en) 2008-04-25 2010-12-31 Apotex Technologies Inc Liquid formulation for deferiprone with palatable taste.
CN102712591B (en) 2009-07-03 2014-06-25 阿普泰克斯科技公司 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
JPS5318578A (en) 1978-02-20
EG13080A (en) 1981-03-31
DK326086D0 (en) 1986-07-09
NL7706811A (en) 1978-02-06
PH13926A (en) 1980-11-04
FI831701A0 (en) 1983-05-16
ES470745A1 (en) 1979-01-16
YU270382A (en) 1983-10-31
JPS5420500B2 (en) 1979-07-23
PL215007A1 (en) 1979-12-17
PL215006A1 (en) 1979-12-17
ES470746A1 (en) 1979-01-16
NO834236L (en) 1978-02-03
HK30581A (en) 1981-07-10
FI831700A0 (en) 1983-05-16
AT363470B (en) 1981-08-10
FI72119B (en) 1986-12-31
NO821850L (en) 1978-02-03
NL182476C (en) 1988-03-16
CA1095921A (en) 1981-02-17
CH625798A5 (en) 1981-10-15
NL182477B (en) 1987-10-16
FI72119C (en) 1987-04-13
NO821851L (en) 1978-02-03
HU185687B (en) 1985-03-28
CH626358A5 (en) 1981-11-13
NO821849L (en) 1978-02-03
JPS5436270A (en) 1979-03-16
SE433079B (en) 1984-05-07
PT66694B (en) 1978-11-17
IE45643B1 (en) 1982-10-20
SE444565B (en) 1986-04-21
ATA124380A (en) 1981-03-15
NO150043C (en) 1984-08-15
SE8200519L (en) 1982-01-29
CA1110254A (en) 1981-10-06
IE45645B1 (en) 1982-10-20
FI72722C (en) 1987-07-10
DK153401B (en) 1988-07-11
NO150560C (en) 1984-11-07
ES470744A1 (en) 1979-01-16
DK325986A (en) 1986-07-09
NL170955B (en) 1982-08-16
IE790586L (en) 1978-02-02
IT1106258B (en) 1985-11-11
GB1538375A (en) 1979-01-17
CS203921B2 (en) 1981-03-31
DK326186D0 (en) 1986-07-09
IE45641L (en) 1978-02-02
BG28989A4 (en) 1980-08-15
JPS5436269A (en) 1979-03-16
SE8200522L (en) 1982-01-29
RO78952A (en) 1982-04-12
DK326086A (en) 1986-07-09
NO150560B (en) 1984-07-30
FI831703A0 (en) 1983-05-16
MY8100287A (en) 1981-12-31
AT362790B (en) 1981-06-10
NO151365B (en) 1984-12-17
CS203922B2 (en) 1981-03-31
SE445042B (en) 1986-05-26
IE790587L (en) 1978-02-02
JPS5436266A (en) 1979-03-16
SE8200520L (en) 1982-01-29
PH13557A (en) 1980-06-26
DK153401C (en) 1988-11-28
FI831702A0 (en) 1983-05-16
NO821848L (en) 1978-02-03
NL8105540A (en) 1982-04-01
DK153483B (en) 1988-07-18
HK30781A (en) 1981-07-10
FI831701L (en) 1983-05-16
IE790584L (en) 1978-02-02
YU40166B (en) 1985-08-31
FI72723B (en) 1987-03-31
PH15185A (en) 1982-09-10
FI831704L (en) 1983-05-16
HK30381A (en) 1981-07-10
RO78951A2 (en) 1982-04-12
IE790585L (en) 1978-02-02
CS203923B2 (en) 1981-03-31
SE8200521L (en) 1982-01-29
DE2728499A1 (en) 1978-02-09
NL8105539A (en) 1982-04-01
FI831700L (en) 1983-05-16
JPS5618597B2 (en) 1981-04-30
GB1538371A (en) 1979-01-17
IE45641B1 (en) 1982-10-20
PL215008A1 (en) 1979-12-17
GR68938B (en) 1982-03-29
GB1538373A (en) 1979-01-17
CA1117541A (en) 1982-02-02
NO150042C (en) 1984-08-15
FR2372821A1 (en) 1978-06-30
DE2728499C2 (en) 1986-04-03
DD132494A5 (en) 1978-10-04
MY8100267A (en) 1981-12-31
NO821847L (en) 1978-02-03
LU77600A1 (en) 1978-02-01
NO772193L (en) 1978-02-03
TR19652A (en) 1979-09-17
SE445041B (en) 1986-05-26
FI72723C (en) 1987-07-10
NL182477C (en) 1988-03-16
PL199798A1 (en) 1979-08-27
ATA124480A (en) 1981-01-15
SE8200518L (en) 1982-01-29
BG29136A3 (en) 1980-09-15
NO150043B (en) 1984-04-30
AU2601777A (en) 1978-09-21
BG28988A4 (en) 1980-08-15
HU186026B (en) 1985-05-28
IE45644B1 (en) 1982-10-20
FI831703L (en) 1983-05-16
ES459994A1 (en) 1978-11-16
BE855965A (en) 1977-12-21
SE7707035L (en) 1978-02-03
PH13874A (en) 1980-10-24
FI72722B (en) 1987-03-31
NL8105537A (en) 1982-04-01
JPS5436267A (en) 1979-03-16
SE444564B (en) 1986-04-21
NO150561B (en) 1984-07-30
NL182478C (en) 1988-03-16
CH626357A5 (en) 1981-11-13
RO78953A (en) 1982-04-12
JPS5436268A (en) 1979-03-16
AT364356B (en) 1981-10-12
DK154079B (en) 1988-10-10
YU146977A (en) 1983-06-30
PT66694A (en) 1977-07-01
YU42613B (en) 1988-10-31
YU274782A (en) 1983-12-31
NL182478B (en) 1987-10-16
DK276177A (en) 1978-02-03
DK326186A (en) 1986-07-09
FI831702L (en) 1983-05-16
MX4597E (en) 1982-06-25
NO150559B (en) 1984-07-30
GB1538372A (en) 1979-01-17
YU43190B (en) 1989-04-30
DE2760220C2 (en) 1987-08-20
AR216080A1 (en) 1979-11-30
NL182805B (en) 1987-12-16
NO150561C (en) 1984-11-07
DK325986D0 (en) 1986-07-09
NL170955C (en) 1983-01-17
FI771934A (en) 1978-02-03
PL115496B1 (en) 1981-04-30
HU185686B (en) 1985-03-28
FI73424B (en) 1987-06-30
JPS5436271A (en) 1979-03-16
NL182805C (en) 1988-05-16
FI72721B (en) 1987-03-31
SU1015826A3 (en) 1983-04-30
YU166383A (en) 1986-02-28
MY8100262A (en) 1981-12-31
CH625235A5 (en) 1981-09-15
DK153483C (en) 1988-11-28
FI72721C (en) 1987-07-10
BR7703970A (en) 1978-07-04
HU180040B (en) 1983-01-28
NO151365C (en) 1985-03-27
PL115497B1 (en) 1981-04-30
JPS5814433B2 (en) 1983-03-18
PL115586B1 (en) 1981-04-30
IE45642B1 (en) 1982-10-20
JPS5618596B2 (en) 1981-04-30
NO150559C (en) 1984-11-07
FI72720B (en) 1987-03-31
GB1538374A (en) 1979-01-17
JPS5729034B2 (en) 1982-06-19
NL182476B (en) 1987-10-16
DE2760221C2 (en) 1989-10-05
NL8105538A (en) 1982-04-01
RO74367A (en) 1981-11-24
FI831704A0 (en) 1983-05-16
SU955859A3 (en) 1982-08-30
FI73424C (en) 1987-10-09
FR2372821B1 (en) 1980-10-17
HK30681A (en) 1981-07-10
DK153484B (en) 1988-07-18
FI72720C (en) 1987-07-10
ES470743A1 (en) 1979-01-16
ATA440477A (en) 1980-11-15
PH14625A (en) 1981-10-12
NO150042B (en) 1984-04-30
SE452616B (en) 1987-12-07
DK154079C (en) 1989-02-27
DK153484C (en) 1988-11-28
HK30481A (en) 1981-07-10
NZ184342A (en) 1978-09-25

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