IT1106258B - Processo per preparare gamma-pironi - Google Patents

Processo per preparare gamma-pironi

Info

Publication number
IT1106258B
IT1106258B IT49950/77A IT4995077A IT1106258B IT 1106258 B IT1106258 B IT 1106258B IT 49950/77 A IT49950/77 A IT 49950/77A IT 4995077 A IT4995077 A IT 4995077A IT 1106258 B IT1106258 B IT 1106258B
Authority
IT
Italy
Prior art keywords
pyrons
prepare
range
prepare range
Prior art date
Application number
IT49950/77A
Other languages
English (en)
Italian (it)
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
Application granted granted Critical
Publication of IT1106258B publication Critical patent/IT1106258B/it

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
IT49950/77A 1976-08-02 1977-06-23 Processo per preparare gamma-pironi IT1106258B (it)

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
IT1106258B true IT1106258B (it) 1985-11-11

Family

ID=27108548

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49950/77A IT1106258B (it) 1976-08-02 1977-06-23 Processo per preparare gamma-pironi

Country Status (36)

Country Link
JP (7) JPS5318578A (fi)
AR (1) AR216080A1 (fi)
AT (3) AT362790B (fi)
BE (1) BE855965A (fi)
BG (4) BG29136A3 (fi)
BR (1) BR7703970A (fi)
CA (3) CA1095921A (fi)
CH (4) CH625798A5 (fi)
CS (3) CS203921B2 (fi)
DD (1) DD132494A5 (fi)
DE (3) DE2760221C2 (fi)
DK (4) DK153483C (fi)
EG (1) EG13080A (fi)
ES (5) ES459994A1 (fi)
FI (6) FI72722C (fi)
FR (1) FR2372821A1 (fi)
GB (5) GB1538372A (fi)
GR (1) GR68938B (fi)
HK (5) HK30581A (fi)
HU (4) HU186026B (fi)
IE (5) IE45643B1 (fi)
IT (1) IT1106258B (fi)
LU (1) LU77600A1 (fi)
MX (1) MX4597E (fi)
MY (3) MY8100262A (fi)
NL (5) NL170955C (fi)
NO (7) NO150561C (fi)
NZ (1) NZ184342A (fi)
PH (5) PH13557A (fi)
PL (4) PL115497B1 (fi)
PT (1) PT66694B (fi)
RO (4) RO78951A2 (fi)
SE (6) SE433079B (fi)
SU (2) SU955859A3 (fi)
TR (1) TR19652A (fi)
YU (4) YU40166B (fi)

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 (fi) * 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 (fi) * 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
US8026261B2 (en) * 2007-03-28 2011-09-27 Apotex Technologies Inc. Fluorinated derivatives of deferiprone
PL2268282T3 (pl) 2008-04-25 2015-04-30 Apotex Tech Inc Płynny preparat deferypronu o przyjemnym smaku
PL2448922T3 (pl) 2009-07-03 2015-02-27 Apotex Tech Inc Fluorowane pochodne 3-hydroksypirydyn-4-onów
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 (fi) * 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
FI831701L (fi) 1983-05-16
NO151365C (no) 1985-03-27
JPS5318578A (en) 1978-02-20
FI831700L (fi) 1983-05-16
NO150042C (no) 1984-08-15
JPS5814433B2 (ja) 1983-03-18
AU2601777A (en) 1978-09-21
NO772193L (no) 1978-02-03
YU43190B (en) 1989-04-30
NL182476B (nl) 1987-10-16
DK276177A (da) 1978-02-03
PL115497B1 (en) 1981-04-30
EG13080A (en) 1981-03-31
JPS5436270A (en) 1979-03-16
SE433079B (sv) 1984-05-07
CH626357A5 (en) 1981-11-13
CH625235A5 (en) 1981-09-15
DK153483C (da) 1988-11-28
BR7703970A (pt) 1978-07-04
AR216080A1 (es) 1979-11-30
NZ184342A (en) 1978-09-25
NO150561C (no) 1984-11-07
NL8105540A (nl) 1982-04-01
SE8200522L (sv) 1982-01-29
JPS5618597B2 (fi) 1981-04-30
SE8200521L (sv) 1982-01-29
FI73424C (fi) 1987-10-09
DE2760221C2 (fi) 1989-10-05
ES470744A1 (es) 1979-01-16
JPS5436271A (en) 1979-03-16
NL182476C (nl) 1988-03-16
JPS5436269A (en) 1979-03-16
FI831702A0 (fi) 1983-05-16
ES470746A1 (es) 1979-01-16
NL182478B (nl) 1987-10-16
NO821848L (no) 1978-02-03
FI73424B (fi) 1987-06-30
FI831703L (fi) 1983-05-16
GB1538372A (en) 1979-01-17
MY8100267A (en) 1981-12-31
TR19652A (tr) 1979-09-17
NO150042B (no) 1984-04-30
ATA124480A (de) 1981-01-15
NL182805B (nl) 1987-12-16
CA1117541A (en) 1982-02-02
NO150561B (no) 1984-07-30
NO150560B (no) 1984-07-30
FI771934A (fi) 1978-02-03
PL215008A1 (pl) 1979-12-17
DK154079C (da) 1989-02-27
IE790586L (en) 1978-02-02
SE444564B (sv) 1986-04-21
GR68938B (fi) 1982-03-29
MY8100262A (en) 1981-12-31
NO150043B (no) 1984-04-30
NL182805C (nl) 1988-05-16
RO78952A (ro) 1982-04-12
HK30781A (en) 1981-07-10
ES470745A1 (es) 1979-01-16
SU1015826A3 (ru) 1983-04-30
HK30381A (en) 1981-07-10
DK153484C (da) 1988-11-28
GB1538371A (en) 1979-01-17
JPS5420500B2 (fi) 1979-07-23
AT362790B (de) 1981-06-10
SE444565B (sv) 1986-04-21
AT364356B (de) 1981-10-12
SE445042B (sv) 1986-05-26
FR2372821B1 (fi) 1980-10-17
SE8200518L (sv) 1982-01-29
RO78951A2 (ro) 1982-04-12
HK30681A (en) 1981-07-10
NL8105537A (nl) 1982-04-01
FI72720B (fi) 1987-03-31
FI72723C (fi) 1987-07-10
IE45645B1 (en) 1982-10-20
YU270382A (en) 1983-10-31
AT363470B (de) 1981-08-10
FI72721B (fi) 1987-03-31
JPS5618596B2 (fi) 1981-04-30
NO150559C (no) 1984-11-07
FI831703A0 (fi) 1983-05-16
NL182478C (nl) 1988-03-16
FI72119B (fi) 1986-12-31
NO151365B (no) 1984-12-17
FI72722C (fi) 1987-07-10
IE45641B1 (en) 1982-10-20
HK30481A (en) 1981-07-10
FI72721C (fi) 1987-07-10
SE445041B (sv) 1986-05-26
PL115586B1 (en) 1981-04-30
CH625798A5 (en) 1981-10-15
FI831704A0 (fi) 1983-05-16
SE452616B (sv) 1987-12-07
CS203922B2 (en) 1981-03-31
NO821850L (no) 1978-02-03
JPS5436267A (en) 1979-03-16
RO74367A (ro) 1981-11-24
DK326086A (da) 1986-07-09
NL170955B (nl) 1982-08-16
SU955859A3 (ru) 1982-08-30
DE2728499C2 (de) 1986-04-03
SE8200519L (sv) 1982-01-29
YU146977A (en) 1983-06-30
HU186026B (en) 1985-05-28
NO821851L (no) 1978-02-03
IE45644B1 (en) 1982-10-20
NL182477B (nl) 1987-10-16
IE790584L (en) 1978-02-02
ATA440477A (de) 1980-11-15
NO821847L (no) 1978-02-03
DK153401B (da) 1988-07-11
IE790585L (en) 1978-02-02
BG29136A3 (en) 1980-09-15
FI831701A0 (fi) 1983-05-16
JPS5436268A (en) 1979-03-16
DK326086D0 (da) 1986-07-09
ES459994A1 (es) 1978-11-16
NL7706811A (nl) 1978-02-06
PH13557A (en) 1980-06-26
DK154079B (da) 1988-10-10
PH14625A (en) 1981-10-12
PL199798A1 (pl) 1979-08-27
DK325986D0 (da) 1986-07-09
GB1538373A (en) 1979-01-17
MX4597E (es) 1982-06-25
CS203923B2 (en) 1981-03-31
NL8105539A (nl) 1982-04-01
CA1095921A (en) 1981-02-17
FI72723B (fi) 1987-03-31
PH15185A (en) 1982-09-10
YU274782A (en) 1983-12-31
NL182477C (nl) 1988-03-16
BG28989A4 (en) 1980-08-15
JPS5436266A (en) 1979-03-16
SE7707035L (sv) 1978-02-03
FI831702L (fi) 1983-05-16
DD132494A5 (de) 1978-10-04
DK326186A (da) 1986-07-09
FI72720C (fi) 1987-07-10
NO150559B (no) 1984-07-30
CA1110254A (en) 1981-10-06
BG28849A3 (en) 1980-07-15
NO834236L (no) 1978-02-03
FI831700A0 (fi) 1983-05-16
JPS5729034B2 (fi) 1982-06-19
BE855965A (fr) 1977-12-21
NO150560C (no) 1984-11-07
PL215006A1 (pl) 1979-12-17
PH13874A (en) 1980-10-24
ES470743A1 (es) 1979-01-16
PL215007A1 (pl) 1979-12-17
IE45642B1 (en) 1982-10-20
PT66694B (en) 1978-11-17
DE2760220C2 (fi) 1987-08-20
FR2372821A1 (fr) 1978-06-30
SE8200520L (sv) 1982-01-29
DK153483B (da) 1988-07-18
PH13926A (en) 1980-11-04
DK153484B (da) 1988-07-18
CH626358A5 (en) 1981-11-13
IE45641L (en) 1978-02-02
HU180040B (en) 1983-01-28
HU185687B (en) 1985-03-28
FI72722B (fi) 1987-03-31
NL170955C (nl) 1983-01-17
GB1538374A (en) 1979-01-17
HU185686B (en) 1985-03-28
YU166383A (en) 1986-02-28
IE45643B1 (en) 1982-10-20
GB1538375A (en) 1979-01-17
RO78953A (ro) 1982-04-12
BG28988A4 (en) 1980-08-15
MY8100287A (en) 1981-12-31
FI72119C (fi) 1987-04-13
DE2728499A1 (de) 1978-02-09
CS203921B2 (en) 1981-03-31
DK326186D0 (da) 1986-07-09
DK153401C (da) 1988-11-28
HK30581A (en) 1981-07-10
LU77600A1 (fi) 1978-02-01
NL8105538A (nl) 1982-04-01
IE790587L (en) 1978-02-02
YU40166B (en) 1985-08-31
YU42613B (en) 1988-10-31
PT66694A (en) 1977-07-01
ATA124380A (de) 1981-03-15
PL115496B1 (en) 1981-04-30
FI831704L (fi) 1983-05-16
NO821849L (no) 1978-02-03
DK325986A (da) 1986-07-09
NO150043C (no) 1984-08-15

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950413