BG28988A4 - Method of obtaining of 4- halo- dihydropropyrans - Google Patents

Method of obtaining of 4- halo- dihydropropyrans

Info

Publication number
BG28988A4
BG28988A4 BG7742606A BG4260677A BG28988A4 BG 28988 A4 BG28988 A4 BG 28988A4 BG 7742606 A BG7742606 A BG 7742606A BG 4260677 A BG4260677 A BG 4260677A BG 28988 A4 BG28988 A4 BG 28988A4
Authority
BG
Bulgaria
Prior art keywords
dihydropropyrans
halo
obtaining
Prior art date
Application number
BG7742606A
Other languages
Bulgarian (bg)
English (en)
Inventor
Brennan
Brannegan
Weeks
Kuhla
Original Assignee
Prizer 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 Prizer Inc,Us filed Critical Prizer Inc,Us
Publication of BG28988A4 publication Critical patent/BG28988A4/xx

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)
  • Picture Signal Circuits (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Processing Of Color Television Signals (AREA)
  • Nitrogen Condensed Heterocyclic Rings (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)
BG7742606A 1976-08-02 1977-07-14 Method of obtaining of 4- halo- dihydropropyrans BG28988A4 (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
BG28988A4 true BG28988A4 (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
BG7942607A BG28989A4 (en) 1976-08-02 1977-07-14 Method of obtaining of 6- substituated dihydropyrans
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

Family Applications Before (2)

Application Number Title Priority Date Filing Date
BG7736892A BG28849A3 (en) 1976-08-02 1977-07-14 Method of obtaining of gamapyrons
BG7942607A BG28989A4 (en) 1976-08-02 1977-07-14 Method of obtaining of 6- substituated dihydropyrans

Family Applications After (1)

Application Number Title Priority Date Filing Date
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 (xx)
AR (1) AR216080A1 (xx)
AT (3) AT362790B (xx)
BE (1) BE855965A (xx)
BG (4) BG28849A3 (xx)
BR (1) BR7703970A (xx)
CA (3) CA1095921A (xx)
CH (4) CH625798A5 (xx)
CS (3) CS203921B2 (xx)
DD (1) DD132494A5 (xx)
DE (3) DE2760221C2 (xx)
DK (4) DK153483C (xx)
EG (1) EG13080A (xx)
ES (5) ES459994A1 (xx)
FI (6) FI72722C (xx)
FR (1) FR2372821A1 (xx)
GB (5) GB1538375A (xx)
GR (1) GR68938B (xx)
HK (5) HK30481A (xx)
HU (4) HU185687B (xx)
IE (5) IE45643B1 (xx)
IT (1) IT1106258B (xx)
LU (1) LU77600A1 (xx)
MX (1) MX4597E (xx)
MY (3) MY8100262A (xx)
NL (5) NL170955C (xx)
NO (7) NO150561C (xx)
NZ (1) NZ184342A (xx)
PH (5) PH13557A (xx)
PL (4) PL115497B1 (xx)
PT (1) PT66694B (xx)
RO (4) RO78953A (xx)
SE (6) SE433079B (xx)
SU (2) SU955859A3 (xx)
TR (1) TR19652A (xx)
YU (4) YU40166B (xx)

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 (xx) * 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 (xx) * 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
CL2008000887A1 (es) 2007-03-28 2008-05-30 Apotex Technologies Inc Compuestos derivados de 3-hidroxi-1h-pirimidin-4-ona o 3-hidroxi-piran-4-ona; procedimiento de preparacion; composicion farmaceutica que comprende a dichos compuestos; y su uso para tratar una enfermedad neurodegenerativa causada por la presencia de
KR101490721B1 (ko) 2008-04-25 2015-02-06 아포텍스 테크놀로지스 인크. 감칠맛을 가진 디페리프론용 액상 제제
ME01911B (me) 2009-07-03 2014-12-20 Apotex Tech Inc Fluorisani derivati 3-hidroksipiridin-4-ona
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 (xx) * 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
JPS5318578A (en) 1978-02-20
RO78953A (ro) 1982-04-12
YU43190B (en) 1989-04-30
DK326086D0 (da) 1986-07-09
GR68938B (xx) 1982-03-29
FR2372821A1 (fr) 1978-06-30
FI72721B (fi) 1987-03-31
DE2728499A1 (de) 1978-02-09
EG13080A (en) 1981-03-31
SE8200520L (sv) 1982-01-29
JPS5618596B2 (xx) 1981-04-30
NO150559C (no) 1984-11-07
IE45643B1 (en) 1982-10-20
DK326186A (da) 1986-07-09
DK154079C (da) 1989-02-27
FI831703A0 (fi) 1983-05-16
DK325986D0 (da) 1986-07-09
PT66694A (en) 1977-07-01
HK30481A (en) 1981-07-10
NL182477B (nl) 1987-10-16
NO150043C (no) 1984-08-15
RO78951A2 (ro) 1982-04-12
FI72119C (fi) 1987-04-13
NL8105538A (nl) 1982-04-01
PH14625A (en) 1981-10-12
NO821848L (no) 1978-02-03
ATA124380A (de) 1981-03-15
MX4597E (es) 1982-06-25
DK153483B (da) 1988-07-18
DK153483C (da) 1988-11-28
NO150559B (no) 1984-07-30
AR216080A1 (es) 1979-11-30
BG28989A4 (en) 1980-08-15
DK153484B (da) 1988-07-18
DK154079B (da) 1988-10-10
FI831704L (fi) 1983-05-16
NL182478B (nl) 1987-10-16
JPS5814433B2 (ja) 1983-03-18
CS203923B2 (en) 1981-03-31
NL182805B (nl) 1987-12-16
RO74367A (ro) 1981-11-24
NL170955C (nl) 1983-01-17
IE790586L (en) 1978-02-02
NL8105537A (nl) 1982-04-01
NL170955B (nl) 1982-08-16
DK153484C (da) 1988-11-28
CH625798A5 (en) 1981-10-15
IE45644B1 (en) 1982-10-20
SE8200519L (sv) 1982-01-29
SE445042B (sv) 1986-05-26
IE45641L (en) 1978-02-02
FI831702L (fi) 1983-05-16
PL199798A1 (pl) 1979-08-27
NO150561C (no) 1984-11-07
TR19652A (tr) 1979-09-17
PL115496B1 (en) 1981-04-30
JPS5436266A (en) 1979-03-16
FI72723B (fi) 1987-03-31
YU42613B (en) 1988-10-31
CH626357A5 (en) 1981-11-13
ES459994A1 (es) 1978-11-16
MY8100262A (en) 1981-12-31
JPS5436271A (en) 1979-03-16
NO150560B (no) 1984-07-30
NL7706811A (nl) 1978-02-06
RO78952A (ro) 1982-04-12
FI831702A0 (fi) 1983-05-16
LU77600A1 (xx) 1978-02-01
NO150560C (no) 1984-11-07
HU186026B (en) 1985-05-28
BR7703970A (pt) 1978-07-04
HU180040B (en) 1983-01-28
NO821851L (no) 1978-02-03
AT364356B (de) 1981-10-12
NL8105539A (nl) 1982-04-01
IT1106258B (it) 1985-11-11
IE790584L (en) 1978-02-02
YU40166B (en) 1985-08-31
SE445041B (sv) 1986-05-26
BG28849A3 (en) 1980-07-15
NO821849L (no) 1978-02-03
DK153401C (da) 1988-11-28
IE45641B1 (en) 1982-10-20
CA1110254A (en) 1981-10-06
DD132494A5 (de) 1978-10-04
PH13557A (en) 1980-06-26
NL182478C (nl) 1988-03-16
PL115586B1 (en) 1981-04-30
NO821847L (no) 1978-02-03
BG29136A3 (en) 1980-09-15
HU185687B (en) 1985-03-28
SE444564B (sv) 1986-04-21
NL182476B (nl) 1987-10-16
DK325986A (da) 1986-07-09
GB1538374A (en) 1979-01-17
HU185686B (en) 1985-03-28
HK30581A (en) 1981-07-10
FI72722C (fi) 1987-07-10
PL215006A1 (pl) 1979-12-17
ES470746A1 (es) 1979-01-16
ATA440477A (de) 1980-11-15
SE8200522L (sv) 1982-01-29
HK30681A (en) 1981-07-10
JPS5618597B2 (xx) 1981-04-30
SE8200521L (sv) 1982-01-29
JPS5436270A (en) 1979-03-16
SE433079B (sv) 1984-05-07
SE452616B (sv) 1987-12-07
FI73424C (fi) 1987-10-09
NO150043B (no) 1984-04-30
SU955859A3 (ru) 1982-08-30
FI831701A0 (fi) 1983-05-16
IE790585L (en) 1978-02-02
PH15185A (en) 1982-09-10
YU166383A (en) 1986-02-28
FI831704A0 (fi) 1983-05-16
NZ184342A (en) 1978-09-25
NL8105540A (nl) 1982-04-01
NO772193L (no) 1978-02-03
FR2372821B1 (xx) 1980-10-17
FI72119B (fi) 1986-12-31
DE2760221C2 (xx) 1989-10-05
HK30781A (en) 1981-07-10
NO821850L (no) 1978-02-03
SE444565B (sv) 1986-04-21
IE790587L (en) 1978-02-02
HK30381A (en) 1981-07-10
NO150042B (no) 1984-04-30
JPS5436267A (en) 1979-03-16
NO150561B (no) 1984-07-30
NO151365B (no) 1984-12-17
PL215007A1 (pl) 1979-12-17
ES470743A1 (es) 1979-01-16
AT363470B (de) 1981-08-10
PH13926A (en) 1980-11-04
FI72720C (fi) 1987-07-10
GB1538373A (en) 1979-01-17
PL215008A1 (pl) 1979-12-17
JPS5436268A (en) 1979-03-16
NL182805C (nl) 1988-05-16
PH13874A (en) 1980-10-24
IE45642B1 (en) 1982-10-20
ES470744A1 (es) 1979-01-16
FI72721C (fi) 1987-07-10
DE2760220C2 (xx) 1987-08-20
FI831701L (fi) 1983-05-16
CS203921B2 (en) 1981-03-31
DK326186D0 (da) 1986-07-09
FI771934A (xx) 1978-02-03
DK153401B (da) 1988-07-11
DK326086A (da) 1986-07-09
CA1117541A (en) 1982-02-02
FI72722B (fi) 1987-03-31
NL182476C (nl) 1988-03-16
FI831703L (fi) 1983-05-16
DE2728499C2 (de) 1986-04-03
MY8100287A (en) 1981-12-31
ATA124480A (de) 1981-01-15
FI73424B (fi) 1987-06-30
IE45645B1 (en) 1982-10-20
CS203922B2 (en) 1981-03-31
JPS5729034B2 (xx) 1982-06-19
BE855965A (fr) 1977-12-21
PL115497B1 (en) 1981-04-30
NO150042C (no) 1984-08-15
PT66694B (en) 1978-11-17
MY8100267A (en) 1981-12-31
JPS5436269A (en) 1979-03-16
CH625235A5 (en) 1981-09-15
YU270382A (en) 1983-10-31
SE7707035L (sv) 1978-02-03
CH626358A5 (en) 1981-11-13
FI72720B (fi) 1987-03-31
CA1095921A (en) 1981-02-17
AU2601777A (en) 1978-09-21
GB1538372A (en) 1979-01-17
FI831700L (fi) 1983-05-16
NL182477C (nl) 1988-03-16
SE8200518L (sv) 1982-01-29
FI831700A0 (fi) 1983-05-16
YU274782A (en) 1983-12-31
FI72723C (fi) 1987-07-10
YU146977A (en) 1983-06-30
ES470745A1 (es) 1979-01-16
SU1015826A3 (ru) 1983-04-30
JPS5420500B2 (xx) 1979-07-23
DK276177A (da) 1978-02-03
AT362790B (de) 1981-06-10
GB1538371A (en) 1979-01-17
GB1538375A (en) 1979-01-17
NO834236L (no) 1978-02-03
NO151365C (no) 1985-03-27

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