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BR0309840A - Processo quìmico - Google Patents

Processo quìmico

Info

Publication number
BR0309840A
BR0309840A BR0309840-0A BR0309840A BR0309840A BR 0309840 A BR0309840 A BR 0309840A BR 0309840 A BR0309840 A BR 0309840A BR 0309840 A BR0309840 A BR 0309840A
Authority
BR
Brazil
Prior art keywords
acid
tolylacetic acid
tolylacetic
isochromanone
converted
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.)
Withdrawn
Application number
BR0309840-0A
Other languages
English (en)
Inventor
Raymond Vincent Heavon Jones
Alan John Whitton
Colin John Bennie
David John Ritchie
Pascal Bugnon
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.)
Syngenta Participations AG
Syngenta Ltd
Original Assignee
Syngenta Participations AG
Syngenta Ltd
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 Syngenta Participations AG, Syngenta Ltd filed Critical Syngenta Participations AG
Publication of BR0309840A publication Critical patent/BR0309840A/pt
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/04—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring
    • C07D311/06—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2
    • C07D311/08—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring
    • C07D311/10—Benzo[b]pyrans, not hydrogenated in the carbocyclic ring with oxygen or sulfur atoms directly attached in position 2 not hydrogenated in the hetero ring unsubstituted
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/76—Benzo[c]pyrans
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D311/00—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
    • C07D311/02—Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings ortho- or peri-condensed with carbocyclic rings or ring systems
    • C07D311/74—Benzo[b]pyrans, hydrogenated in the carbocyclic ring

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Pyrane Compounds (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

"PROCESSO QUìMICO". A presente invenção refere-se a 3-isocromanona clorando-se parcialmente o ácido o-tolilacético com cloreto de sulfurila ou gás cloro num solvente inerte na presença de um iniciador de radical livre. O ácido 2-clorometilfenilacético obtido primeiro é convertido a 3-isocromanona através de tratamento com uma base e separada do ácido o-tolilacético não-reagido, que encontra-se na forma de um sal, através de uma técnica de separação de fases. O sal do ácido o-tolilacético separado é convertido à ácido otolilacético por acidificação controlada e o ácido o-tolilacético é extraído para reuso. A invenção reduz a formação de subprodutos superlorados indesejáveis e fornece um processo mais eficiente.
BR0309840-0A 2002-05-07 2003-04-08 Processo quìmico Withdrawn BR0309840A (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB0210370.3A GB0210370D0 (en) 2002-05-07 2002-05-07 Chemical process
PCT/GB2003/001503 WO2003095442A2 (en) 2002-05-07 2003-04-08 Process for the preparation of 3-isochromanone

Publications (1)

Publication Number Publication Date
BR0309840A true BR0309840A (pt) 2005-03-01

Family

ID=9936175

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0309840-0A Withdrawn BR0309840A (pt) 2002-05-07 2003-04-08 Processo quìmico

Country Status (16)

Country Link
US (1) US7491834B2 (pt)
EP (1) EP1506184A2 (pt)
JP (1) JP2005529148A (pt)
KR (1) KR20040106464A (pt)
CN (1) CN1303079C (pt)
AR (1) AR039970A1 (pt)
AU (1) AU2003219316B2 (pt)
BR (1) BR0309840A (pt)
CA (1) CA2485114A1 (pt)
GB (1) GB0210370D0 (pt)
HU (1) HUP0500156A2 (pt)
IL (2) IL164788A0 (pt)
PL (1) PL372627A1 (pt)
TW (1) TW200307677A (pt)
WO (1) WO2003095442A2 (pt)
ZA (1) ZA200408508B (pt)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102297924B (zh) * 2011-06-21 2013-10-30 上海试四赫维化工有限公司 3-异苯并二氢吡喃酮中邻-甲基苯乙酸和2-氯甲基苯乙酸杂质含量的高效液相色谱分析方法
JP5826964B1 (ja) * 2015-06-18 2015-12-02 タマ化学工業株式会社 ピリジン−３−スルホニルクロリドの製造方法
CN112125876A (zh) * 2020-08-25 2020-12-25 宁夏思科达生物科技有限公司 一种3-异色酮的合成方法
CN115772147B (zh) * 2022-12-23 2024-03-22 长沙钰腾新材料有限公司 3-异色酮或其衍生物的合成方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3962873B2 (ja) * 1996-04-10 2007-08-22 イハラケミカル工業株式会社 ３−イソクロマノン類の製造法
JP3962874B2 (ja) * 1996-04-10 2007-08-22 イハラケミカル工業株式会社 ３−イソクロマノン類の製造方法
GB9612623D0 (en) 1996-06-17 1996-08-21 Zeneca Ltd Chemical process
JP3874925B2 (ja) * 1998-04-22 2007-01-31 イハラケミカル工業株式会社 クロロメチルフェニル酢酸の製造方法
US6372921B1 (en) * 1999-02-01 2002-04-16 Showa Denko K.K. Process for producing isochromanones and intermediates thereof
DE19923548A1 (de) * 1999-05-21 2000-11-23 Clariant Gmbh Verfahren zur Herstellung von 3-Isochromanonen durch Cyclisierung von o-Chlormethylphenylessigsäuren

Also Published As

Publication number Publication date
HUP0500156A2 (hu) 2005-05-30
AU2003219316B2 (en) 2009-08-27
JP2005529148A (ja) 2005-09-29
US7491834B2 (en) 2009-02-17
AU2003219316A1 (en) 2003-11-11
PL372627A1 (en) 2005-07-25
TW200307677A (en) 2003-12-16
CA2485114A1 (en) 2003-11-20
ZA200408508B (en) 2006-02-22
GB0210370D0 (en) 2002-06-12
IL164788A (en) 2009-05-04
CN1653058A (zh) 2005-08-10
WO2003095442A3 (en) 2004-01-08
IL164788A0 (en) 2005-12-18
US20060163159A1 (en) 2006-07-27
WO2003095442A2 (en) 2003-11-20
EP1506184A2 (en) 2005-02-16
AR039970A1 (es) 2005-03-09
KR20040106464A (ko) 2004-12-17
CN1303079C (zh) 2007-03-07

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Legal Events

Date Code Title Description
B06F Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2144 DE 07/02/2012.