NO963187L - Fremgangsmåte for syntese av gamma-pyroner - Google Patents

Fremgangsmåte for syntese av gamma-pyroner

Info

Publication number
NO963187L
NO963187L NO963187A NO963187A NO963187L NO 963187 L NO963187 L NO 963187L NO 963187 A NO963187 A NO 963187A NO 963187 A NO963187 A NO 963187A NO 963187 L NO963187 L NO 963187L
Authority
NO
Norway
Prior art keywords
pyrones
gamma
synthesis
maltol
halogenenone
Prior art date
Application number
NO963187A
Other languages
English (en)
Other versions
NO963187D0 (no
Inventor
Fu-Ning Fung
Bruce A Hay
James E Swenarton
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
Application filed by Pfizer filed Critical Pfizer
Publication of NO963187D0 publication Critical patent/NO963187D0/no
Publication of NO963187L publication Critical patent/NO963187L/no

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
    • C07D309/34—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

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Luminescent Compositions (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Light Receiving Elements (AREA)

Abstract

Maltol og etylmaltol kan fremstilles fra et halogenenon- mellomprodukt ved omsetning av mellomproduktet med syre i et tørt aprotisk løsningsmiddel som reaksjonsmedium.
NO963187A 1994-01-31 1996-07-30 Fremgangsmåte for syntese av gamma-pyroner NO963187L (no)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US18947894A 1994-01-31 1994-01-31
PCT/IB1994/000432 WO1995020584A1 (en) 1994-01-31 1994-12-16 Method of synthesizing gamma pyrones

Publications (2)

Publication Number Publication Date
NO963187D0 NO963187D0 (no) 1996-07-30
NO963187L true NO963187L (no) 1996-09-30

Family

ID=22697509

Family Applications (1)

Application Number Title Priority Date Filing Date
NO963187A NO963187L (no) 1994-01-31 1996-07-30 Fremgangsmåte for syntese av gamma-pyroner

Country Status (16)

Country Link
US (1) US5908941A (no)
EP (1) EP0741717A1 (no)
JP (1) JPH09501699A (no)
CN (1) CN1142821A (no)
AU (1) AU695469B2 (no)
BR (1) BR9408521A (no)
CA (1) CA2181463A1 (no)
FI (1) FI963018A0 (no)
IL (1) IL112013A0 (no)
MY (1) MY131725A (no)
NO (1) NO963187L (no)
NZ (1) NZ276786A (no)
RU (1) RU2109739C1 (no)
TW (1) TW354786B (no)
WO (1) WO1995020584A1 (no)
ZA (1) ZA9410244B (no)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100401783B1 (ko) * 1995-12-12 2004-01-28 주식회사 두산콘프로덕츠코리아 향미증진제말톨의제조방법
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
CA2722393A1 (en) 2008-04-25 2009-10-29 Apotex Technologies Inc. Liquid formulation for deferiprone with palatable taste
CN101585822B (zh) * 2009-06-26 2011-05-18 滁州学院 一种乙基麦芽酚的合成方法
MA33985B1 (fr) 2009-07-03 2013-02-01 Apotex Technologies Inc Dérivés fluorés de 3-hydroxypyridin-4-ones
CN103755667B (zh) * 2014-01-27 2016-01-20 苏州大学 一种手性3-（2-硝基乙基）四氢呋喃化合物及其制备方法
CN104387355B (zh) * 2014-09-27 2016-06-08 安徽金禾实业股份有限公司 一种乙基麦芽酚结晶母液回收方法
CN105906597B (zh) * 2016-05-11 2018-05-04 广东省肇庆香料厂有限公司 一种乙基麦芽酚的合成工艺
CN108947950A (zh) * 2018-07-27 2018-12-07 重庆华控康乐药物研究有限公司 一种天然麦芽酚的制备方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4342697A (en) * 1975-08-28 1982-08-03 Pfizer Inc. Preparation of gamma-pyrones
US4390709A (en) * 1976-11-11 1983-06-28 Pfizer Inc. Preparation of gamma-pyrones
US4126624A (en) * 1976-11-12 1978-11-21 Pfizer Inc. Preparation of gamma-pyrones from 3-substituted furans
US4435584A (en) * 1981-10-14 1984-03-06 Pfizer Inc. Preparation of gamma-pyrones
US4451661A (en) * 1982-04-26 1984-05-29 Pfizer Inc. Preparation of gamma-pyrone intermediates

Also Published As

Publication number Publication date
RU2109739C1 (ru) 1998-04-27
MY131725A (en) 2007-08-30
TW354786B (en) 1999-03-21
WO1995020584A1 (en) 1995-08-03
EP0741717A1 (en) 1996-11-13
BR9408521A (pt) 1997-08-19
FI963018A (fi) 1996-07-30
US5908941A (en) 1999-06-01
NO963187D0 (no) 1996-07-30
CA2181463A1 (en) 1995-08-03
AU695469B2 (en) 1998-08-13
CN1142821A (zh) 1997-02-12
JPH09501699A (ja) 1997-02-18
NZ276786A (en) 1998-05-27
ZA9410244B (en) 1996-06-24
AU1117795A (en) 1995-08-15
IL112013A0 (en) 1995-03-15
FI963018A0 (fi) 1996-07-30

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