CA1117541A - 4-halo-dihydropyrannes et leur preparation - Google Patents

4-halo-dihydropyrannes et leur preparation

Info

Publication number
CA1117541A
CA1117541A CA000363274A CA363274A CA1117541A CA 1117541 A CA1117541 A CA 1117541A CA 000363274 A CA000363274 A CA 000363274A CA 363274 A CA363274 A CA 363274A CA 1117541 A CA1117541 A CA 1117541A
Authority
CA
Canada
Prior art keywords
carbon atoms
hydrogen
alkyl
chlorine
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
CA000363274A
Other languages
English (en)
Inventor
Donald E. Kuhla
Paul D. Weeks
Thomas M. Brennan
Daniel P. Brannegan
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.)
Danisco Finland Oy
Original Assignee
Pfizer Ltd Great Britain
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 Ltd Great Britain filed Critical Pfizer Ltd Great Britain
Application granted granted Critical
Publication of CA1117541A publication Critical patent/CA1117541A/fr
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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyridine Compounds (AREA)
  • Cosmetics (AREA)
  • Saccharide Compounds (AREA)
  • Plural Heterocyclic Compounds (AREA)
  • Furan Compounds (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Picture Signal Circuits (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Processing Of Color Television Signals (AREA)
  • Heterocyclic Carbon Compounds Containing A Hetero Ring Having Oxygen Or Sulfur (AREA)
  • Control Of El Displays (AREA)
  • Seasonings (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
CA000363274A 1976-08-02 1980-10-24 4-halo-dihydropyrannes et leur preparation Expired CA1117541A (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US71090176A 1976-08-02 1976-08-02
US710,901 1976-08-02
US05/721,885 US4082717A (en) 1976-08-02 1976-09-09 Preparation of gamma-pyrones
US721,885 1985-04-11

Publications (1)

Publication Number Publication Date
CA1117541A true CA1117541A (fr) 1982-02-02

Family

ID=27108548

Family Applications (3)

Application Number Title Priority Date Filing Date
CA279,922A Expired CA1095921A (fr) 1976-08-02 1977-06-06 Preparation de gamma-pyrones
CA363,273A Expired CA1110254A (fr) 1976-08-02 1980-10-24 Obtention de gamma-pyrones
CA000363274A Expired CA1117541A (fr) 1976-08-02 1980-10-24 4-halo-dihydropyrannes et leur preparation

Family Applications Before (2)

Application Number Title Priority Date Filing Date
CA279,922A Expired CA1095921A (fr) 1976-08-02 1977-06-06 Preparation de gamma-pyrones
CA363,273A Expired CA1110254A (fr) 1976-08-02 1980-10-24 Obtention de gamma-pyrones

Country Status (36)

Country Link
JP (7) JPS5318578A (fr)
AR (1) AR216080A1 (fr)
AT (3) AT362790B (fr)
BE (1) BE855965A (fr)
BG (4) BG28849A3 (fr)
BR (1) BR7703970A (fr)
CA (3) CA1095921A (fr)
CH (4) CH625798A5 (fr)
CS (3) CS203921B2 (fr)
DD (1) DD132494A5 (fr)
DE (3) DE2728499C2 (fr)
DK (4) DK153483C (fr)
EG (1) EG13080A (fr)
ES (5) ES459994A1 (fr)
FI (6) FI72722C (fr)
FR (1) FR2372821A1 (fr)
GB (5) GB1538374A (fr)
GR (1) GR68938B (fr)
HK (5) HK30381A (fr)
HU (4) HU185687B (fr)
IE (5) IE45642B1 (fr)
IT (1) IT1106258B (fr)
LU (1) LU77600A1 (fr)
MX (1) MX4597E (fr)
MY (3) MY8100267A (fr)
NL (5) NL170955C (fr)
NO (7) NO150561C (fr)
NZ (1) NZ184342A (fr)
PH (5) PH13557A (fr)
PL (4) PL115496B1 (fr)
PT (1) PT66694B (fr)
RO (4) RO74367A (fr)
SE (6) SE433079B (fr)
SU (2) SU955859A3 (fr)
TR (1) TR19652A (fr)
YU (4) YU40166B (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1095921A (fr) * 1976-08-02 1981-02-17 Thomas M. Brennan Preparation de 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 (fr) * 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 (fr) * 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
CN102964296B (zh) * 2007-03-28 2015-03-25 阿普泰克斯科技公司 去铁酮的氟化衍生物
AU2008355464C1 (en) 2008-04-25 2014-11-20 Chiesi Farmaceutici S.P.A. Liquid formulation for deferiprone with palatable taste
PT2448922E (pt) 2009-07-03 2014-12-02 Apotex Technologies Inc Derivados fluorados de 3-hidroxipiridina-4-onas
WO2017168309A1 (fr) * 2016-03-29 2017-10-05 Dr. Reddy’S Laboratories Limited Procédé de préparation d'éribuline et de ses intermédiaires
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 (fr) * 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 (fr) * 1976-08-02 1981-02-17 Thomas M. Brennan Preparation de gamma-pyrones

Also Published As

Publication number Publication date
FI72722C (fi) 1987-07-10
IE790585L (en) 1978-02-02
NO821848L (no) 1978-02-03
HU185687B (en) 1985-03-28
DK326086D0 (da) 1986-07-09
SE444564B (sv) 1986-04-21
AT364356B (de) 1981-10-12
SE7707035L (sv) 1978-02-03
NO150042C (no) 1984-08-15
ATA124380A (de) 1981-03-15
FI73424C (fi) 1987-10-09
PT66694A (en) 1977-07-01
JPS5436266A (en) 1979-03-16
SU955859A3 (ru) 1982-08-30
NL182476B (nl) 1987-10-16
SE444565B (sv) 1986-04-21
IE45643B1 (en) 1982-10-20
NL8105539A (nl) 1982-04-01
PL115496B1 (en) 1981-04-30
ES470743A1 (es) 1979-01-16
ES470745A1 (es) 1979-01-16
RO78951A2 (fr) 1982-04-12
YU42613B (en) 1988-10-31
SE445041B (sv) 1986-05-26
AR216080A1 (es) 1979-11-30
DE2760220C2 (fr) 1987-08-20
JPS5814433B2 (ja) 1983-03-18
HK30781A (en) 1981-07-10
DK325986A (da) 1986-07-09
RO78952A (fr) 1982-04-12
NL7706811A (nl) 1978-02-06
JPS5618597B2 (fr) 1981-04-30
FI72720B (fi) 1987-03-31
FI72720C (fi) 1987-07-10
DK326086A (da) 1986-07-09
JPS5318578A (en) 1978-02-20
NL8105538A (nl) 1982-04-01
PT66694B (en) 1978-11-17
BG28988A4 (en) 1980-08-15
BG28989A4 (en) 1980-08-15
CA1095921A (fr) 1981-02-17
NL182805C (nl) 1988-05-16
SE8200518L (sv) 1982-01-29
BG29136A3 (bg) 1980-09-15
GR68938B (fr) 1982-03-29
HU186026B (en) 1985-05-28
DK153401C (da) 1988-11-28
FI72119B (fi) 1986-12-31
NL182805B (nl) 1987-12-16
NL182476C (nl) 1988-03-16
CS203922B2 (en) 1981-03-31
AT363470B (de) 1981-08-10
SU1015826A3 (ru) 1983-04-30
DK153484B (da) 1988-07-18
EG13080A (en) 1981-03-31
FI73424B (fi) 1987-06-30
DK153483B (da) 1988-07-18
DE2760221C2 (fr) 1989-10-05
NO150560B (no) 1984-07-30
CH626357A5 (en) 1981-11-13
YU274782A (en) 1983-12-31
PL215008A1 (pl) 1979-12-17
DK276177A (da) 1978-02-03
FI831702L (fi) 1983-05-16
GB1538372A (en) 1979-01-17
NO821849L (no) 1978-02-03
FI771934A7 (fr) 1978-02-03
TR19652A (tr) 1979-09-17
NL8105540A (nl) 1982-04-01
SE445042B (sv) 1986-05-26
CA1110254A (fr) 1981-10-06
HK30381A (en) 1981-07-10
CH626358A5 (en) 1981-11-13
PL115497B1 (en) 1981-04-30
MY8100287A (en) 1981-12-31
YU43190B (en) 1989-04-30
DE2728499C2 (de) 1986-04-03
SE452616B (sv) 1987-12-07
HK30481A (en) 1981-07-10
SE8200521L (sv) 1982-01-29
HK30581A (en) 1981-07-10
FI831704L (fi) 1983-05-16
GB1538374A (en) 1979-01-17
HU185686B (en) 1985-03-28
ATA440477A (de) 1980-11-15
JPS5436268A (en) 1979-03-16
FI72721C (fi) 1987-07-10
FI831702A0 (fi) 1983-05-16
CS203923B2 (en) 1981-03-31
PH14625A (en) 1981-10-12
FI831703L (fi) 1983-05-16
NO151365C (no) 1985-03-27
PL199798A1 (pl) 1979-08-27
YU40166B (en) 1985-08-31
IE45641L (en) 1978-02-02
NL182478B (nl) 1987-10-16
NO150561C (no) 1984-11-07
ES459994A1 (es) 1978-11-16
YU166383A (en) 1986-02-28
GB1538375A (en) 1979-01-17
GB1538373A (en) 1979-01-17
SE8200519L (sv) 1982-01-29
HK30681A (en) 1981-07-10
AU2601777A (en) 1978-09-21
NO150043B (no) 1984-04-30
IE45644B1 (en) 1982-10-20
DK153484C (da) 1988-11-28
MX4597E (es) 1982-06-25
LU77600A1 (fr) 1978-02-01
NZ184342A (en) 1978-09-25
DK153401B (da) 1988-07-11
NO150042B (no) 1984-04-30
FI831701A0 (fi) 1983-05-16
RO74367A (fr) 1981-11-24
NO821850L (no) 1978-02-03
SE8200520L (sv) 1982-01-29
YU270382A (en) 1983-10-31
FI72723B (fi) 1987-03-31
RO78953A (fr) 1982-04-12
FI831700A0 (fi) 1983-05-16
FI72722B (fi) 1987-03-31
PL215007A1 (pl) 1979-12-17
MY8100262A (en) 1981-12-31
SE8200522L (sv) 1982-01-29
FI72119C (fi) 1987-04-13
FR2372821A1 (fr) 1978-06-30
FI831703A0 (fi) 1983-05-16
ATA124480A (de) 1981-01-15
AT362790B (de) 1981-06-10
NO150043C (no) 1984-08-15
FI831700L (fi) 1983-05-16
IE790584L (en) 1978-02-02
NO150559B (no) 1984-07-30
GB1538371A (en) 1979-01-17
NL8105537A (nl) 1982-04-01
NO834236L (no) 1978-02-03
CH625235A5 (en) 1981-09-15
PL215006A1 (pl) 1979-12-17
NO772193L (no) 1978-02-03
JPS5436267A (en) 1979-03-16
IT1106258B (it) 1985-11-11
NL170955C (nl) 1983-01-17
FI831704A0 (fi) 1983-05-16
CS203921B2 (en) 1981-03-31
DK326186D0 (da) 1986-07-09
FI831701L (fi) 1983-05-16
NL182477C (nl) 1988-03-16
JPS5436269A (en) 1979-03-16
JPS5420500B2 (fr) 1979-07-23
ES470744A1 (es) 1979-01-16
BR7703970A (pt) 1978-07-04
IE45642B1 (en) 1982-10-20
NL182477B (nl) 1987-10-16
PL115586B1 (en) 1981-04-30
JPS5729034B2 (fr) 1982-06-19
FI72721B (fi) 1987-03-31
IE45645B1 (en) 1982-10-20
DK325986D0 (da) 1986-07-09
BG28849A3 (bg) 1980-07-15
PH13557A (en) 1980-06-26
ES470746A1 (es) 1979-01-16
DD132494A5 (de) 1978-10-04
NL182478C (nl) 1988-03-16
IE45641B1 (en) 1982-10-20
PH15185A (en) 1982-09-10
YU146977A (en) 1983-06-30
DK153483C (da) 1988-11-28
FI72723C (fi) 1987-07-10
MY8100267A (en) 1981-12-31
FR2372821B1 (fr) 1980-10-17
IE790586L (en) 1978-02-02
JPS5436270A (en) 1979-03-16
SE433079B (sv) 1984-05-07
HU180040B (en) 1983-01-28
NO150561B (no) 1984-07-30
NO151365B (no) 1984-12-17
BE855965A (fr) 1977-12-21
NO821851L (no) 1978-02-03
NL170955B (nl) 1982-08-16
PH13874A (en) 1980-10-24
CH625798A5 (en) 1981-10-15
DK326186A (da) 1986-07-09
DK154079C (da) 1989-02-27
NO821847L (no) 1978-02-03
DE2728499A1 (de) 1978-02-09
JPS5618596B2 (fr) 1981-04-30
NO150559C (no) 1984-11-07
PH13926A (en) 1980-11-04
JPS5436271A (en) 1979-03-16
IE790587L (en) 1978-02-02
NO150560C (no) 1984-11-07
DK154079B (da) 1988-10-10

Similar Documents

Publication Publication Date Title
CA1117541A (fr) 4-halo-dihydropyrannes et leur preparation
US5780649A (en) Process for preparing optically active cyclic compounds
US4082717A (en) Preparation of gamma-pyrones
IE45904B1 (en) Method of preparing furocoumarins
US4435584A (en) Preparation of gamma-pyrones
US4059595A (en) Process for preparing 3-oxy-4H-pyran-4-one derivatives
Nakajima et al. Allyl, epoxy and glycosyl perfluoroimidates. One-pot preparation and reaction
US4387235A (en) Intermediates for the preparation of gamma-pyrones
US4289704A (en) Preparation of gamma-pyrones
NO773868L (no) Fremgangsmaate for fremstilling av gamma-pyroner
US4147705A (en) Preparation of gamma-pyrones
US4368331A (en) 3,4-Dihalo-tetrahydrophyran-5-one useful as intermediates for the preparation of gamma-pyrones
KR810000289B1 (ko) 감마-피론류의 제조 방법
US4323506A (en) Preparation of gamma-pyrones
US4150039A (en) 2,2'-Bis(3,4-Epoxy-5-oxotetrahydropyran)ethers
CA1205814A (fr) Lactones substitues, et leur preparation
PL193124B1 (pl) Nowe hydroksylaktony i sposób otrzymywania nowych hydroksylaktonów

Legal Events

Date Code Title Description
MKEX Expiry