RO74367A - Procedeu de preparare a gama-pironelor - Google Patents

Procedeu de preparare a gama-pironelor

Info

Publication number
RO74367A
RO74367A RO7791106A RO9110677A RO74367A RO 74367 A RO74367 A RO 74367A RO 7791106 A RO7791106 A RO 7791106A RO 9110677 A RO9110677 A RO 9110677A RO 74367 A RO74367 A RO 74367A
Authority
RO
Romania
Prior art keywords
pyron
gamma
preparation
gamma pyron
Prior art date
Application number
RO7791106A
Other languages
English (en)
French (fr)
Romanian (ro)
Inventor
Thomas M Brennan
Daniel P Brannegan
Paul D Weeks
Donald E Kuhla
Original Assignee
Pfizer Inc,Us
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,Us filed Critical Pfizer Inc,Us
Publication of RO74367A publication Critical patent/RO74367A/ro

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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyridine Compounds (AREA)
  • Cosmetics (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Saccharide Compounds (AREA)
  • Furan Compounds (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Picture Signal Circuits (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)
  • Control Of El Displays (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Seasonings (AREA)
RO7791106A 1976-08-02 1977-07-20 Procedeu de preparare a gama-pironelor RO74367A (ro)

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
RO74367A true RO74367A (ro) 1981-11-24

Family

ID=27108548

Family Applications (4)

Application Number Title Priority Date Filing Date
RO7791106A RO74367A (ro) 1976-08-02 1977-07-20 Procedeu de preparare a gama-pironelor
RO7799830A RO78953A (ro) 1976-08-02 1977-07-20 Procedeu pentru prepararea unor 4-halo-6-hidroxi-2h-piran-3(6h)-onelor
RO7799825A RO78951A2 (ro) 1976-08-02 1977-07-20 Procedeu pentru prepararea unor 6-hidroxi-2h-piran-3(6h)-one
RO7799826A RO78952A (ro) 1976-08-02 1977-07-20 Procedeu pentru prepararea unor gama-pirone

Family Applications After (3)

Application Number Title Priority Date Filing Date
RO7799830A RO78953A (ro) 1976-08-02 1977-07-20 Procedeu pentru prepararea unor 4-halo-6-hidroxi-2h-piran-3(6h)-onelor
RO7799825A RO78951A2 (ro) 1976-08-02 1977-07-20 Procedeu pentru prepararea unor 6-hidroxi-2h-piran-3(6h)-one
RO7799826A RO78952A (ro) 1976-08-02 1977-07-20 Procedeu pentru prepararea unor gama-pirone

Country Status (36)

Country Link
JP (7) JPS5318578A (enrdf_load_stackoverflow)
AR (1) AR216080A1 (enrdf_load_stackoverflow)
AT (3) AT362790B (enrdf_load_stackoverflow)
BE (1) BE855965A (enrdf_load_stackoverflow)
BG (4) BG29136A3 (enrdf_load_stackoverflow)
BR (1) BR7703970A (enrdf_load_stackoverflow)
CA (3) CA1095921A (enrdf_load_stackoverflow)
CH (4) CH625798A5 (enrdf_load_stackoverflow)
CS (3) CS203921B2 (enrdf_load_stackoverflow)
DD (1) DD132494A5 (enrdf_load_stackoverflow)
DE (3) DE2760221C2 (enrdf_load_stackoverflow)
DK (4) DK153483C (enrdf_load_stackoverflow)
EG (1) EG13080A (enrdf_load_stackoverflow)
ES (5) ES459994A1 (enrdf_load_stackoverflow)
FI (6) FI72722C (enrdf_load_stackoverflow)
FR (1) FR2372821A1 (enrdf_load_stackoverflow)
GB (5) GB1538375A (enrdf_load_stackoverflow)
GR (1) GR68938B (enrdf_load_stackoverflow)
HK (5) HK30681A (enrdf_load_stackoverflow)
HU (4) HU185686B (enrdf_load_stackoverflow)
IE (5) IE45644B1 (enrdf_load_stackoverflow)
IT (1) IT1106258B (enrdf_load_stackoverflow)
LU (1) LU77600A1 (enrdf_load_stackoverflow)
MX (1) MX4597E (enrdf_load_stackoverflow)
MY (3) MY8100262A (enrdf_load_stackoverflow)
NL (5) NL170955C (enrdf_load_stackoverflow)
NO (7) NO150561C (enrdf_load_stackoverflow)
NZ (1) NZ184342A (enrdf_load_stackoverflow)
PH (5) PH13557A (enrdf_load_stackoverflow)
PL (4) PL215008A1 (enrdf_load_stackoverflow)
PT (1) PT66694B (enrdf_load_stackoverflow)
RO (4) RO74367A (enrdf_load_stackoverflow)
SE (6) SE433079B (enrdf_load_stackoverflow)
SU (2) SU955859A3 (enrdf_load_stackoverflow)
TR (1) TR19652A (enrdf_load_stackoverflow)
YU (4) YU40166B (enrdf_load_stackoverflow)

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 (fr) * 1977-09-12 1979-04-06 Shinetsu Chemical Co Nouveaux derives de x tetrahydropyrannone(5)
JPS5444675A (en) * 1977-09-12 1979-04-09 Shin Etsu Chem Co Ltd Production of 3-hydroxy-4-pyrone analog
JPS5741226U (enrdf_load_stackoverflow) * 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 (enrdf_load_stackoverflow) * 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
WO2008116301A1 (en) 2007-03-28 2008-10-02 Apotex Technologies Inc. Fluorinated derivatives of deferiprone
EA022751B1 (ru) 2008-04-25 2016-02-29 Апотекс Текнолоджиз Инк. Жидкая композиция деферипрона с замаскированным вкусом
MY163058A (en) 2009-07-03 2017-08-15 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 (enrdf_load_stackoverflow) * 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
BR7703970A (pt) 1978-07-04
JPS5436268A (en) 1979-03-16
PL215007A1 (pl) 1979-12-17
JPS5436271A (en) 1979-03-16
SE445041B (sv) 1986-05-26
YU274782A (en) 1983-12-31
MY8100267A (en) 1981-12-31
ES470744A1 (es) 1979-01-16
DK153484C (da) 1988-11-28
HK30681A (en) 1981-07-10
DE2728499A1 (de) 1978-02-09
LU77600A1 (enrdf_load_stackoverflow) 1978-02-01
SU1015826A3 (ru) 1983-04-30
JPS5618597B2 (enrdf_load_stackoverflow) 1981-04-30
GB1538371A (en) 1979-01-17
IE45643B1 (en) 1982-10-20
HK30781A (en) 1981-07-10
NO150559B (no) 1984-07-30
DK326186A (da) 1986-07-09
RO78953A (ro) 1982-04-12
ATA124380A (de) 1981-03-15
FI72119B (fi) 1986-12-31
YU146977A (en) 1983-06-30
DD132494A5 (de) 1978-10-04
IE45641L (en) 1978-02-02
AT363470B (de) 1981-08-10
NO150043B (no) 1984-04-30
JPS5814433B2 (ja) 1983-03-18
SE7707035L (sv) 1978-02-03
SE8200520L (sv) 1982-01-29
DE2760221C2 (enrdf_load_stackoverflow) 1989-10-05
PL115496B1 (en) 1981-04-30
PT66694B (en) 1978-11-17
DK154079C (da) 1989-02-27
NL182477B (nl) 1987-10-16
NO821848L (no) 1978-02-03
CS203921B2 (en) 1981-03-31
DK326186D0 (da) 1986-07-09
PH13874A (en) 1980-10-24
MY8100287A (en) 1981-12-31
AR216080A1 (es) 1979-11-30
DK154079B (da) 1988-10-10
NL170955B (nl) 1982-08-16
PT66694A (en) 1977-07-01
JPS5618596B2 (enrdf_load_stackoverflow) 1981-04-30
FI72722C (fi) 1987-07-10
JPS5436269A (en) 1979-03-16
FI72721B (fi) 1987-03-31
FI831701L (fi) 1983-05-16
SE444565B (sv) 1986-04-21
DK276177A (da) 1978-02-03
FI831702L (fi) 1983-05-16
FI831702A0 (fi) 1983-05-16
CA1110254A (en) 1981-10-06
PH13926A (en) 1980-11-04
FI72722B (fi) 1987-03-31
NL182805B (nl) 1987-12-16
NO772193L (no) 1978-02-03
NO150559C (no) 1984-11-07
HU186026B (en) 1985-05-28
FI72723B (fi) 1987-03-31
FI72119C (fi) 1987-04-13
PL215008A1 (pl) 1979-12-17
JPS5436270A (en) 1979-03-16
JPS5436267A (en) 1979-03-16
IE45641B1 (en) 1982-10-20
PH15185A (en) 1982-09-10
GB1538375A (en) 1979-01-17
BE855965A (fr) 1977-12-21
NL8105539A (nl) 1982-04-01
YU43190B (en) 1989-04-30
DE2728499C2 (de) 1986-04-03
NZ184342A (en) 1978-09-25
FR2372821B1 (enrdf_load_stackoverflow) 1980-10-17
ATA124480A (de) 1981-01-15
DK326086D0 (da) 1986-07-09
NL182478C (nl) 1988-03-16
NO151365C (no) 1985-03-27
SE8200522L (sv) 1982-01-29
CH626358A5 (en) 1981-11-13
SE444564B (sv) 1986-04-21
MX4597E (es) 1982-06-25
NO821849L (no) 1978-02-03
FI831700A0 (fi) 1983-05-16
NO834236L (no) 1978-02-03
DK153483C (da) 1988-11-28
GB1538372A (en) 1979-01-17
IE790584L (en) 1978-02-02
FI831704L (fi) 1983-05-16
NO821850L (no) 1978-02-03
NO151365B (no) 1984-12-17
NL7706811A (nl) 1978-02-06
IE790585L (en) 1978-02-02
DE2760220C2 (enrdf_load_stackoverflow) 1987-08-20
CS203923B2 (en) 1981-03-31
IE45644B1 (en) 1982-10-20
SE8200519L (sv) 1982-01-29
MY8100262A (en) 1981-12-31
FI73424B (fi) 1987-06-30
SU955859A3 (ru) 1982-08-30
SE452616B (sv) 1987-12-07
CA1095921A (en) 1981-02-17
NL8105538A (nl) 1982-04-01
BG28849A3 (bg) 1980-07-15
CH626357A5 (en) 1981-11-13
IE790587L (en) 1978-02-02
CA1117541A (en) 1982-02-02
IE45642B1 (en) 1982-10-20
ES470743A1 (es) 1979-01-16
AT364356B (de) 1981-10-12
FI831700L (fi) 1983-05-16
JPS5729034B2 (enrdf_load_stackoverflow) 1982-06-19
HU180040B (en) 1983-01-28
FI72721C (fi) 1987-07-10
YU270382A (en) 1983-10-31
NO821847L (no) 1978-02-03
NO150043C (no) 1984-08-15
ATA440477A (de) 1980-11-15
ES470745A1 (es) 1979-01-16
NL182476C (nl) 1988-03-16
FI72723C (fi) 1987-07-10
SE8200521L (sv) 1982-01-29
NL8105537A (nl) 1982-04-01
BG29136A3 (bg) 1980-09-15
AU2601777A (en) 1978-09-21
NL182805C (nl) 1988-05-16
FI771934A7 (enrdf_load_stackoverflow) 1978-02-03
PH14625A (en) 1981-10-12
JPS5436266A (en) 1979-03-16
RO78952A (ro) 1982-04-12
YU40166B (en) 1985-08-31
IE790586L (en) 1978-02-02
IE45645B1 (en) 1982-10-20
PL115497B1 (en) 1981-04-30
PL115586B1 (en) 1981-04-30
FI72720C (fi) 1987-07-10
JPS5420500B2 (enrdf_load_stackoverflow) 1979-07-23
FI831703L (fi) 1983-05-16
HK30481A (en) 1981-07-10
CH625798A5 (en) 1981-10-15
SE8200518L (sv) 1982-01-29
DK153484B (da) 1988-07-18
ES470746A1 (es) 1979-01-16
NO150561B (no) 1984-07-30
FI831704A0 (fi) 1983-05-16
NL182476B (nl) 1987-10-16
DK325986A (da) 1986-07-09
NL182478B (nl) 1987-10-16
CH625235A5 (en) 1981-09-15
NO150042B (no) 1984-04-30
DK153401C (da) 1988-11-28
PL199798A1 (pl) 1979-08-27
HK30581A (en) 1981-07-10
GB1538374A (en) 1979-01-17
HU185686B (en) 1985-03-28
DK153401B (da) 1988-07-11
NO150560C (no) 1984-11-07
NO150561C (no) 1984-11-07
PL215006A1 (pl) 1979-12-17
SE445042B (sv) 1986-05-26
SE433079B (sv) 1984-05-07
BG28988A4 (en) 1980-08-15
PH13557A (en) 1980-06-26
AT362790B (de) 1981-06-10
HU185687B (en) 1985-03-28
NO821851L (no) 1978-02-03
HK30381A (en) 1981-07-10
YU166383A (en) 1986-02-28
NO150560B (no) 1984-07-30
JPS5318578A (en) 1978-02-20
RO78951A2 (ro) 1982-04-12
NO150042C (no) 1984-08-15
CS203922B2 (en) 1981-03-31
ES459994A1 (es) 1978-11-16
BG28989A4 (en) 1980-08-15
DK153483B (da) 1988-07-18
NL182477C (nl) 1988-03-16
FI72720B (fi) 1987-03-31
IT1106258B (it) 1985-11-11
TR19652A (tr) 1979-09-17
FI73424C (fi) 1987-10-09
YU42613B (en) 1988-10-31
NL170955C (nl) 1983-01-17
DK326086A (da) 1986-07-09
EG13080A (en) 1981-03-31
FI831703A0 (fi) 1983-05-16
FR2372821A1 (fr) 1978-06-30
FI831701A0 (fi) 1983-05-16
GB1538373A (en) 1979-01-17
GR68938B (enrdf_load_stackoverflow) 1982-03-29
DK325986D0 (da) 1986-07-09
NL8105540A (nl) 1982-04-01

Similar Documents

Publication Publication Date Title
FR2439801B1 (fr) Procede de preparation de polycarbonates
BE857854A (fr) Procede de preparation de polyurethanne-urees
BE873136A (fr) Procede de preparation de la vincadifformine
BE861172A (fr) Procede de preparation d'alpha-amino-amides
RO74367A (ro) Procedeu de preparare a gama-pironelor
RO70854A (ro) Procedeu de preparare a meta-ariloxibenzaldehidelor
BE857244A (fr) Procede de preparation de 3-chlorocephalosporines
FR2352589A1 (fr) Procede de fragilisation des teguments des graines de petites dimensions
RO79398A (ro) Procedeu pentru prepararea unor 1-oxa-detiacefalosporine
RO73006A (ro) Procedeu de preparare a unor tioderivati
BE852668A (fr) Procede de preparation de 3-halomethylcephemes
BE860267R (fr) Procede de preparation de para-alkylphenols
BE855944A (fr) Procede de preparation des 1-phenyl-3-amino-pyrazoles
RO83446A (ro) Procedeu pentru prepararea unor ciclopropil metoxianilide
RO77935A (ro) Procedeu pentru prepararea unor cis-4a-ariloctahidro-1h-2-pirinidine
FR2342968A1 (fr) Procede de preparation de 3-desoxyanthocyanidines
BE860699A (fr) Procede de preparation de gamma-pyrones
BE866662A (fr) Procede de preparation de 3,5-dihalogenanilines
FR2337118A1 (fr) Procede de preparation de phenyl-indanes
BE870104A (fr) Procede de preparation de 2-chlorosulfinyl-azetidin-4-ones
BE850632R (fr) Procede de preparation de para-alkylphenols
RO74444A (ro) Procedeu de preparare a l-asparagil-o-sulfato-l-tirozil-l-metionilglicil-1-triptofil-l-metionil-l-asparagil-l-fenil-alanilamidei
BE866904A (fr) Procede de preparation de 3-bromophtalide
BE871068A (fr) Nouveau procede de preparation de 4-chloroquinoleines
FR2344561A1 (fr) Procede de preparation de 3-methylenecephalosporines