ES459994A1 - Un procedimiento para preparar una gamma-pirona. - Google Patents

Un procedimiento para preparar una gamma-pirona.

Info

Publication number
ES459994A1
ES459994A1 ES459994A ES459994A ES459994A1 ES 459994 A1 ES459994 A1 ES 459994A1 ES 459994 A ES459994 A ES 459994A ES 459994 A ES459994 A ES 459994A ES 459994 A1 ES459994 A1 ES 459994A1
Authority
ES
Spain
Prior art keywords
gamma
see image
pyrones
preparation
bromine
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES459994A
Other languages
English (en)
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfizer Inc
Original Assignee
Pfizer Inc
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 filed Critical Pfizer Inc
Publication of ES459994A1 publication Critical patent/ES459994A1/es
Expired legal-status Critical Current

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)
  • Saccharide Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Furan Compounds (AREA)
  • Picture Signal Circuits (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Processing Of Color Television Signals (AREA)
  • Nitrogen Condensed Heterocyclic Rings (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)
ES459994A 1976-08-02 1977-06-22 Un procedimiento para preparar una gamma-pirona. Expired ES459994A1 (es)

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
ES459994A1 true ES459994A1 (es) 1978-11-16

Family

ID=27108548

Family Applications (5)

Application Number Title Priority Date Filing Date
ES459994A Expired ES459994A1 (es) 1976-08-02 1977-06-22 Un procedimiento para preparar una gamma-pirona.
ES470744A Expired ES470744A1 (es) 1976-08-02 1978-06-13 Un procedimiento para preparar derivados de 4-halo-dihidro- pirano
ES470745A Expired ES470745A1 (es) 1976-08-02 1978-06-13 Un procedimiento para preparar derivados de 6,6'-oxibis-pi- rona halo-sustituida
ES470743A Expired ES470743A1 (es) 1976-08-02 1978-06-13 Un procedimiento para preparar derivados de 4-halo-dihidro- pirano
ES470746A Expired ES470746A1 (es) 1976-08-02 1978-06-13 Un procedimiento para preparar derivados de dihidropirano 6-sustituido

Family Applications After (4)

Application Number Title Priority Date Filing Date
ES470744A Expired ES470744A1 (es) 1976-08-02 1978-06-13 Un procedimiento para preparar derivados de 4-halo-dihidro- pirano
ES470745A Expired ES470745A1 (es) 1976-08-02 1978-06-13 Un procedimiento para preparar derivados de 6,6'-oxibis-pi- rona halo-sustituida
ES470743A Expired ES470743A1 (es) 1976-08-02 1978-06-13 Un procedimiento para preparar derivados de 4-halo-dihidro- pirano
ES470746A Expired ES470746A1 (es) 1976-08-02 1978-06-13 Un procedimiento para preparar derivados de dihidropirano 6-sustituido

Country Status (36)

Country Link
JP (7) JPS5318578A (enExample)
AR (1) AR216080A1 (enExample)
AT (3) AT362790B (enExample)
BE (1) BE855965A (enExample)
BG (4) BG28989A4 (enExample)
BR (1) BR7703970A (enExample)
CA (3) CA1095921A (enExample)
CH (4) CH625798A5 (enExample)
CS (3) CS203921B2 (enExample)
DD (1) DD132494A5 (enExample)
DE (3) DE2728499C2 (enExample)
DK (4) DK153483C (enExample)
EG (1) EG13080A (enExample)
ES (5) ES459994A1 (enExample)
FI (6) FI72722C (enExample)
FR (1) FR2372821A1 (enExample)
GB (5) GB1538374A (enExample)
GR (1) GR68938B (enExample)
HK (5) HK30581A (enExample)
HU (4) HU180040B (enExample)
IE (5) IE45642B1 (enExample)
IT (1) IT1106258B (enExample)
LU (1) LU77600A1 (enExample)
MX (1) MX4597E (enExample)
MY (3) MY8100267A (enExample)
NL (5) NL170955C (enExample)
NO (7) NO150561C (enExample)
NZ (1) NZ184342A (enExample)
PH (5) PH13557A (enExample)
PL (4) PL115496B1 (enExample)
PT (1) PT66694B (enExample)
RO (4) RO78951A2 (enExample)
SE (6) SE433079B (enExample)
SU (2) SU955859A3 (enExample)
TR (1) TR19652A (enExample)
YU (4) YU40166B (enExample)

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 (fr) * 1977-09-12 1979-04-06 Shinetsu Chemical Co Nouveaux derives de x tetrahydropyrannone(5)
JPS5741226U (enExample) * 1980-08-20 1982-03-05
JPS59135008U (ja) * 1983-02-28 1984-09-10 松下電工株式会社 分電盤装置
JPS6050245A (ja) * 1983-08-29 1985-03-19 Nissan Motor Co Ltd 内燃機関の燃料噴射装置
JPH0226945Y2 (enExample) * 1985-09-11 1990-07-20
JP2586607B2 (ja) * 1987-10-30 1997-03-05 日産化学工業株式会社 光学活性アルコールの製造法
CN101679263B (zh) * 2007-03-28 2014-01-15 阿普泰克斯科技公司 去铁酮的氟化衍生物
EP2268282B1 (en) 2008-04-25 2014-10-29 Apotex Technologies Inc. Liquid formulation for deferiprone with palatable taste
GEP20146008B (en) 2009-07-03 2014-01-10 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 (zh) * 2016-12-13 2021-03-12 奥的斯电梯公司 可打开扩展面板及具有其的电梯吊顶，轿厢和系统
CN111606879A (zh) * 2020-05-25 2020-09-01 安徽金禾实业股份有限公司 一锅法制备2-羟甲基-3-烷氧基-4h-吡喃-4-酮的方法

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 (enExample) * 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
FI72723C (fi) 1987-07-10
FI831704L (fi) 1983-05-16
ES470745A1 (es) 1979-01-16
YU274782A (en) 1983-12-31
CS203923B2 (en) 1981-03-31
FI72721B (fi) 1987-03-31
IE45642B1 (en) 1982-10-20
NL182805B (nl) 1987-12-16
DK153483B (da) 1988-07-18
JPS5814433B2 (ja) 1983-03-18
FI831700A0 (fi) 1983-05-16
DK325986A (da) 1986-07-09
JPS5436268A (en) 1979-03-16
ATA440477A (de) 1980-11-15
DK326086D0 (da) 1986-07-09
DK326186D0 (da) 1986-07-09
PT66694B (en) 1978-11-17
CA1095921A (en) 1981-02-17
NL170955C (nl) 1983-01-17
SU955859A3 (ru) 1982-08-30
NO821851L (no) 1978-02-03
MX4597E (es) 1982-06-25
MY8100262A (en) 1981-12-31
BG28988A4 (en) 1980-08-15
SU1015826A3 (ru) 1983-04-30
HU180040B (en) 1983-01-28
PL199798A1 (pl) 1979-08-27
IE45645B1 (en) 1982-10-20
NO151365C (no) 1985-03-27
ATA124380A (de) 1981-03-15
BR7703970A (pt) 1978-07-04
SE8200519L (sv) 1982-01-29
DK153484B (da) 1988-07-18
NO150042B (no) 1984-04-30
NL8105538A (nl) 1982-04-01
YU146977A (en) 1983-06-30
HU185687B (en) 1985-03-28
FR2372821B1 (enExample) 1980-10-17
YU42613B (en) 1988-10-31
IT1106258B (it) 1985-11-11
SE444565B (sv) 1986-04-21
BG29136A3 (bg) 1980-09-15
CA1117541A (en) 1982-02-02
NO821850L (no) 1978-02-03
NO834236L (no) 1978-02-03
FI771934A7 (enExample) 1978-02-03
DK326186A (da) 1986-07-09
IE45641B1 (en) 1982-10-20
PL215007A1 (pl) 1979-12-17
NL182478C (nl) 1988-03-16
ES470746A1 (es) 1979-01-16
NO772193L (no) 1978-02-03
PH13926A (en) 1980-11-04
DE2728499C2 (de) 1986-04-03
AT363470B (de) 1981-08-10
RO78951A2 (ro) 1982-04-12
FI831702L (fi) 1983-05-16
JPS5436271A (en) 1979-03-16
PL115497B1 (en) 1981-04-30
FI831703L (fi) 1983-05-16
HK30581A (en) 1981-07-10
CS203922B2 (en) 1981-03-31
GB1538375A (en) 1979-01-17
ES470743A1 (es) 1979-01-16
SE7707035L (sv) 1978-02-03
PH15185A (en) 1982-09-10
FI72721C (fi) 1987-07-10
IE790587L (en) 1978-02-02
HK30481A (en) 1981-07-10
CA1110254A (en) 1981-10-06
FI72119B (fi) 1986-12-31
ATA124480A (de) 1981-01-15
CH626358A5 (en) 1981-11-13
DE2760221C2 (enExample) 1989-10-05
JPS5436266A (en) 1979-03-16
FR2372821A1 (fr) 1978-06-30
NO150043C (no) 1984-08-15
DK154079B (da) 1988-10-10
DK153484C (da) 1988-11-28
NO821847L (no) 1978-02-03
LU77600A1 (enExample) 1978-02-01
HK30681A (en) 1981-07-10
NO821849L (no) 1978-02-03
NL182477C (nl) 1988-03-16
MY8100267A (en) 1981-12-31
JPS5618597B2 (enExample) 1981-04-30
SE8200521L (sv) 1982-01-29
YU166383A (en) 1986-02-28
EG13080A (en) 1981-03-31
CH625798A5 (en) 1981-10-15
FI73424B (fi) 1987-06-30
FI831701L (fi) 1983-05-16
IE45643B1 (en) 1982-10-20
DK153401B (da) 1988-07-11
NO150561B (no) 1984-07-30
JPS5436270A (en) 1979-03-16
SE433079B (sv) 1984-05-07
YU270382A (en) 1983-10-31
NL182477B (nl) 1987-10-16
NO150561C (no) 1984-11-07
NO150560C (no) 1984-11-07
CH625235A5 (en) 1981-09-15
DK153401C (da) 1988-11-28
CS203921B2 (en) 1981-03-31
NL182478B (nl) 1987-10-16
ES470744A1 (es) 1979-01-16
NL182476B (nl) 1987-10-16
NO150042C (no) 1984-08-15
DK153483C (da) 1988-11-28
IE790585L (en) 1978-02-02
JPS5436269A (en) 1979-03-16
SE8200520L (sv) 1982-01-29
GB1538374A (en) 1979-01-17
HU185686B (en) 1985-03-28
AU2601777A (en) 1978-09-21
NZ184342A (en) 1978-09-25
DE2760220C2 (enExample) 1987-08-20
NL8105537A (nl) 1982-04-01
RO78952A (ro) 1982-04-12
RO74367A (ro) 1981-11-24
SE8200522L (sv) 1982-01-29
HK30381A (en) 1981-07-10
NO821848L (no) 1978-02-03
IE45644B1 (en) 1982-10-20
PT66694A (en) 1977-07-01
JPS5420500B2 (enExample) 1979-07-23
PH13874A (en) 1980-10-24
AT364356B (de) 1981-10-12
JPS5618596B2 (enExample) 1981-04-30
JPS5436267A (en) 1979-03-16
GB1538371A (en) 1979-01-17
FI72119C (fi) 1987-04-13
GB1538372A (en) 1979-01-17
DK276177A (da) 1978-02-03
AT362790B (de) 1981-06-10
PH13557A (en) 1980-06-26
JPS5318578A (en) 1978-02-20
DK154079C (da) 1989-02-27
FI72720B (fi) 1987-03-31
NO151365B (no) 1984-12-17
BE855965A (fr) 1977-12-21
DD132494A5 (de) 1978-10-04
PH14625A (en) 1981-10-12
GB1538373A (en) 1979-01-17
FI72722B (fi) 1987-03-31
JPS5729034B2 (enExample) 1982-06-19
NO150043B (no) 1984-04-30
NO150559C (no) 1984-11-07
NL8105540A (nl) 1982-04-01
GR68938B (enExample) 1982-03-29
NO150560B (no) 1984-07-30
FI72720C (fi) 1987-07-10
BG28989A4 (en) 1980-08-15
FI72723B (fi) 1987-03-31
YU40166B (en) 1985-08-31
NL182805C (nl) 1988-05-16
IE790586L (en) 1978-02-02
FI831702A0 (fi) 1983-05-16
SE452616B (sv) 1987-12-07
DK325986D0 (da) 1986-07-09
CH626357A5 (en) 1981-11-13
RO78953A (ro) 1982-04-12
NL170955B (nl) 1982-08-16
SE444564B (sv) 1986-04-21
AR216080A1 (es) 1979-11-30
TR19652A (tr) 1979-09-17
DK326086A (da) 1986-07-09
FI831701A0 (fi) 1983-05-16
SE8200518L (sv) 1982-01-29
DE2728499A1 (de) 1978-02-09
SE445042B (sv) 1986-05-26
PL115586B1 (en) 1981-04-30
BG28849A3 (bg) 1980-07-15
NO150559B (no) 1984-07-30
FI831700L (fi) 1983-05-16
FI72722C (fi) 1987-07-10
PL215006A1 (pl) 1979-12-17
FI831704A0 (fi) 1983-05-16
IE45641L (en) 1978-02-02
HU186026B (en) 1985-05-28
PL215008A1 (pl) 1979-12-17
NL7706811A (nl) 1978-02-06
SE445041B (sv) 1986-05-26
PL115496B1 (en) 1981-04-30
MY8100287A (en) 1981-12-31
YU43190B (en) 1989-04-30
HK30781A (en) 1981-07-10
NL182476C (nl) 1988-03-16
IE790584L (en) 1978-02-02
NL8105539A (nl) 1982-04-01
FI73424C (fi) 1987-10-09
FI831703A0 (fi) 1983-05-16

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