BG28989A4 - Method of obtaining of 6- substituated dihydropyrans - Google Patents

Method of obtaining of 6- substituated dihydropyrans

Info

Publication number
BG28989A4
BG28989A4 BG7942607A BG4260777A BG28989A4 BG 28989 A4 BG28989 A4 BG 28989A4 BG 7942607 A BG7942607 A BG 7942607A BG 4260777 A BG4260777 A BG 4260777A BG 28989 A4 BG28989 A4 BG 28989A4
Authority
BG
Bulgaria
Prior art keywords
substituated
dihydropyrans
obtaining
substituated dihydropyrans
Prior art date
Application number
BG7942607A
Inventor
Brennan
Brannegan
Weeks
Kuhla
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 BG28989A4 publication Critical patent/BG28989A4/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)
  • Processing Of Color Television Signals (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Picture Signal Circuits (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)
BG7942607A 1976-08-02 1977-07-14 Method of obtaining of 6- substituated dihydropyrans BG28989A4 (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
BG28989A4 true BG28989A4 (en) 1980-08-15

Family

ID=27108548

Family Applications (4)

Application Number Title Priority Date Filing Date
BG7736892A BG28849A3 (en) 1976-08-02 1977-07-14 Method of obtaining of gamapyrons
BG7742606A BG28988A4 (en) 1976-08-02 1977-07-14 Method of obtaining of 4- halo- dihydropropyrans
BG7942608A BG29136A3 (en) 1976-08-02 1977-07-14 Method of obtaining of 6, 6'- oxybis (4- halo- 2h- pyran- 3(6h)- on
BG7942607A BG28989A4 (en) 1976-08-02 1977-07-14 Method of obtaining of 6- substituated dihydropyrans

Family Applications Before (3)

Application Number Title Priority Date Filing Date
BG7736892A BG28849A3 (en) 1976-08-02 1977-07-14 Method of obtaining of gamapyrons
BG7742606A BG28988A4 (en) 1976-08-02 1977-07-14 Method of obtaining of 4- halo- dihydropropyrans
BG7942608A BG29136A3 (en) 1976-08-02 1977-07-14 Method of obtaining of 6, 6'- oxybis (4- halo- 2h- pyran- 3(6h)- on

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) DE2760221C2 (en)
DK (4) DK153483C (en)
EG (1) EG13080A (en)
ES (5) ES459994A1 (en)
FI (6) FI72722C (en)
FR (1) FR2372821A1 (en)
GB (5) GB1538371A (en)
GR (1) GR68938B (en)
HK (5) HK30581A (en)
HU (4) HU180040B (en)
IE (5) IE45641B1 (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) PL115586B1 (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
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
TWI404533B (en) 2007-03-28 2013-08-11 Apotex Technologies Inc Fluorinated derivatives of deferiprone
EP2268282B1 (en) 2008-04-25 2014-10-29 Apotex Technologies Inc. Liquid formulation for deferiprone with palatable taste
PE20120924A1 (en) 2009-07-03 2012-08-19 Apotex Technologies Inc FLUORATED DERIVATIVES OF 3-HYDROXYPYRIDIN-4-ONAS
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
NO821848L (en) 1978-02-03
SE444565B (en) 1986-04-21
MY8100262A (en) 1981-12-31
PH14625A (en) 1981-10-12
PH13926A (en) 1980-11-04
RO78952A (en) 1982-04-12
HK30481A (en) 1981-07-10
FI72723B (en) 1987-03-31
MX4597E (en) 1982-06-25
HU185687B (en) 1985-03-28
CS203923B2 (en) 1981-03-31
NO150042B (en) 1984-04-30
FI72720C (en) 1987-07-10
ES470744A1 (en) 1979-01-16
SE444564B (en) 1986-04-21
NL8105539A (en) 1982-04-01
PH13874A (en) 1980-10-24
CA1110254A (en) 1981-10-06
FI831704L (en) 1983-05-16
JPS5420500B2 (en) 1979-07-23
NL182478C (en) 1988-03-16
NO834236L (en) 1978-02-03
JPS5436268A (en) 1979-03-16
FI831700L (en) 1983-05-16
YU274782A (en) 1983-12-31
RO78953A (en) 1982-04-12
DD132494A5 (en) 1978-10-04
BE855965A (en) 1977-12-21
AT362790B (en) 1981-06-10
JPS5618597B2 (en) 1981-04-30
SE8200521L (en) 1982-01-29
HU186026B (en) 1985-05-28
NO150560B (en) 1984-07-30
SE445041B (en) 1986-05-26
ES470746A1 (en) 1979-01-16
TR19652A (en) 1979-09-17
YU166383A (en) 1986-02-28
RO78951A2 (en) 1982-04-12
DE2760220C2 (en) 1987-08-20
DK153483B (en) 1988-07-18
PH15185A (en) 1982-09-10
PL115497B1 (en) 1981-04-30
NL182805B (en) 1987-12-16
NL182477C (en) 1988-03-16
GB1538374A (en) 1979-01-17
HU185686B (en) 1985-03-28
PT66694B (en) 1978-11-17
NL182478B (en) 1987-10-16
FR2372821B1 (en) 1980-10-17
DE2728499A1 (en) 1978-02-09
IE45645B1 (en) 1982-10-20
PH13557A (en) 1980-06-26
FI72723C (en) 1987-07-10
DK326086D0 (en) 1986-07-09
NO150043B (en) 1984-04-30
CH625235A5 (en) 1981-09-15
DK325986A (en) 1986-07-09
FI72722B (en) 1987-03-31
DK326186A (en) 1986-07-09
NL8105538A (en) 1982-04-01
CH626357A5 (en) 1981-11-13
FI72720B (en) 1987-03-31
CA1095921A (en) 1981-02-17
IE45641B1 (en) 1982-10-20
SE8200518L (en) 1982-01-29
PL115586B1 (en) 1981-04-30
JPS5618596B2 (en) 1981-04-30
NO150559C (en) 1984-11-07
BR7703970A (en) 1978-07-04
NL170955C (en) 1983-01-17
NO150043C (en) 1984-08-15
FI831701L (en) 1983-05-16
GB1538372A (en) 1979-01-17
PL115496B1 (en) 1981-04-30
JPS5436271A (en) 1979-03-16
YU42613B (en) 1988-10-31
JPS5318578A (en) 1978-02-20
NO150561C (en) 1984-11-07
IT1106258B (en) 1985-11-11
JPS5436270A (en) 1979-03-16
YU146977A (en) 1983-06-30
HU180040B (en) 1983-01-28
ES470743A1 (en) 1979-01-16
NO151365C (en) 1985-03-27
CS203922B2 (en) 1981-03-31
SU955859A3 (en) 1982-08-30
FI831702A0 (en) 1983-05-16
DK153484C (en) 1988-11-28
GB1538375A (en) 1979-01-17
IE45644B1 (en) 1982-10-20
FI831700A0 (en) 1983-05-16
NL7706811A (en) 1978-02-06
FI831704A0 (en) 1983-05-16
NO821847L (en) 1978-02-03
IE790585L (en) 1978-02-02
NO772193L (en) 1978-02-03
IE45642B1 (en) 1982-10-20
FI831703A0 (en) 1983-05-16
HK30681A (en) 1981-07-10
DK276177A (en) 1978-02-03
DK153401B (en) 1988-07-11
SE8200519L (en) 1982-01-29
NL182476B (en) 1987-10-16
NL182476C (en) 1988-03-16
BG28988A4 (en) 1980-08-15
DK154079B (en) 1988-10-10
FI73424B (en) 1987-06-30
NO821849L (en) 1978-02-03
NZ184342A (en) 1978-09-25
NL170955B (en) 1982-08-16
CH626358A5 (en) 1981-11-13
BG29136A3 (en) 1980-09-15
NL8105537A (en) 1982-04-01
GB1538373A (en) 1979-01-17
CA1117541A (en) 1982-02-02
FI72721C (en) 1987-07-10
AR216080A1 (en) 1979-11-30
NO151365B (en) 1984-12-17
ATA124380A (en) 1981-03-15
JPS5436266A (en) 1979-03-16
SE452616B (en) 1987-12-07
IE790584L (en) 1978-02-02
FI72722C (en) 1987-07-10
NO150561B (en) 1984-07-30
NL182477B (en) 1987-10-16
NL182805C (en) 1988-05-16
DK326086A (en) 1986-07-09
PL199798A1 (en) 1979-08-27
DE2728499C2 (en) 1986-04-03
PL215007A1 (en) 1979-12-17
RO74367A (en) 1981-11-24
IE790587L (en) 1978-02-02
GR68938B (en) 1982-03-29
FI72721B (en) 1987-03-31
EG13080A (en) 1981-03-31
NO150559B (en) 1984-07-30
PT66694A (en) 1977-07-01
ATA124480A (en) 1981-01-15
SE8200522L (en) 1982-01-29
DK153401C (en) 1988-11-28
BG28849A3 (en) 1980-07-15
LU77600A1 (en) 1978-02-01
FI831703L (en) 1983-05-16
AU2601777A (en) 1978-09-21
YU40166B (en) 1985-08-31
GB1538371A (en) 1979-01-17
ATA440477A (en) 1980-11-15
FI73424C (en) 1987-10-09
MY8100287A (en) 1981-12-31
YU43190B (en) 1989-04-30
FI72119B (en) 1986-12-31
ES470745A1 (en) 1979-01-16
IE45641L (en) 1978-02-02
FI831702L (en) 1983-05-16
HK30581A (en) 1981-07-10
NO150560C (en) 1984-11-07
NO821851L (en) 1978-02-03
JPS5729034B2 (en) 1982-06-19
DE2760221C2 (en) 1989-10-05
FR2372821A1 (en) 1978-06-30
FI72119C (en) 1987-04-13
HK30781A (en) 1981-07-10
DK325986D0 (en) 1986-07-09
DK153483C (en) 1988-11-28
JPS5436267A (en) 1979-03-16
YU270382A (en) 1983-10-31
SE445042B (en) 1986-05-26
MY8100267A (en) 1981-12-31
SE433079B (en) 1984-05-07
FI771934A (en) 1978-02-03
DK153484B (en) 1988-07-18
ES459994A1 (en) 1978-11-16
NO150042C (en) 1984-08-15
JPS5814433B2 (en) 1983-03-18
SE7707035L (en) 1978-02-03
CS203921B2 (en) 1981-03-31
DK326186D0 (en) 1986-07-09
JPS5436269A (en) 1979-03-16
NO821850L (en) 1978-02-03
PL215006A1 (en) 1979-12-17
FI831701A0 (en) 1983-05-16
AT364356B (en) 1981-10-12
SU1015826A3 (en) 1983-04-30
IE790586L (en) 1978-02-02
PL215008A1 (en) 1979-12-17
DK154079C (en) 1989-02-27
AT363470B (en) 1981-08-10
IE45643B1 (en) 1982-10-20
NL8105540A (en) 1982-04-01
SE8200520L (en) 1982-01-29
HK30381A (en) 1981-07-10
CH625798A5 (en) 1981-10-15

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