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AR003328A1 - Proceso para la preparacion de nitro-sustituido-difenileteres, utiles como herbicidas o como intermediarios en la sintesis de herbicidas - Google Patents

Proceso para la preparacion de nitro-sustituido-difenileteres, utiles como herbicidas o como intermediarios en la sintesis de herbicidas

Info

Publication number
AR003328A1
AR003328A1 ARP960104076A AR10407696A AR003328A1 AR 003328 A1 AR003328 A1 AR 003328A1 AR P960104076 A ARP960104076 A AR P960104076A AR 10407696 A AR10407696 A AR 10407696A AR 003328 A1 AR003328 A1 AR 003328A1
Authority
AR
Argentina
Prior art keywords
herbicides
general formula
substituted
optionally substituted
alkyl
Prior art date
Application number
ARP960104076A
Other languages
English (en)
Original Assignee
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 Ltd filed Critical Syngenta Ltd
Publication of AR003328A1 publication Critical patent/AR003328A1/es

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
    • C07C201/06—Preparation of nitro compounds
    • C07C201/08—Preparation of nitro compounds by substitution of hydrogen atoms by nitro groups
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/27—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups
    • C07C205/35—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups having nitro groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
    • C07C205/36—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups having nitro groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton to carbon atoms of the same non-condensed six-membered aromatic ring or to carbon atoms of six-membered aromatic rings being part of the same condensed ring system
    • C07C205/38—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by etherified hydroxy groups having nitro groups and etherified hydroxy groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton to carbon atoms of the same non-condensed six-membered aromatic ring or to carbon atoms of six-membered aromatic rings being part of the same condensed ring system the oxygen atom of at least one of the etherified hydroxy groups being further bound to a carbon atom of a six-membered aromatic ring, e.g. nitrodiphenyl ethers
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/49—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups
    • C07C205/57—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups having nitro groups and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
    • C07C205/59—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups having nitro groups and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton the carbon skeleton being further substituted by singly-bound oxygen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C303/00—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides
    • C07C303/36—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids
    • C07C303/40—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of amides of sulfonic acids by reactions not involving the formation of sulfonamide groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Proceso para la preparación de compuestos de nitro-sustituido-difeniléter útiles como herbicidas o como intermediarios en la síntesis de herbicidas defórmula general (I), en el cual: R1 es hidrógeno o alquilo C1-C6, alquenilo C2-C6 o alquiniloC2-C6 (cualquiera de los cuales puede ser optativamentesustituido con uno o más sustituyentes seleccionados entre halógeno y OH) o COOR4, COR6, CONR4R5 ó CONHSO2R4; R4 y R5 son cada uno independientementehidrógeno o alquilo C1-C4 sustituidoopcio nalmente con uno o más átomos de halógeno; R6 es un átomo de halógeno o un grupo R4; R2 es hidrógeno o halo; R3es alquilo C1-C4, alquenilo C2-C4 o alquinilo C2-C4, cualquiera de los cuales puede ser optativamente sustituido con uno omás átomo s de halógeno, o halo;caracterizado porque comprende la reacción de un compuesto de fórmula general (II), donde R1, R2, R3 presentan los mismos valores que los definidos en lafórmula general (I); con un agente nitrante que comprendeácido nítrico o una mezcla de ácidos nítrico y sulfúrico en presencia de un solvente orgánico y deanhídrido acético, siendo la relación molar entre el anhídrido acético y el compuesto de la fórmula general (II) de 1:1 a 3:1 y el solventeorgánico,tetracloroet ileno (perklone).
ARP960104076A 1995-09-13 1996-08-22 Proceso para la preparacion de nitro-sustituido-difenileteres, utiles como herbicidas o como intermediarios en la sintesis de herbicidas AR003328A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GBGB9518705.0A GB9518705D0 (en) 1995-09-13 1995-09-13 Chemical process

Publications (1)

Publication Number Publication Date
AR003328A1 true AR003328A1 (es) 1998-07-08

Family

ID=10780649

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP960104076A AR003328A1 (es) 1995-09-13 1996-08-22 Proceso para la preparacion de nitro-sustituido-difenileteres, utiles como herbicidas o como intermediarios en la sintesis de herbicidas

Country Status (18)

Country Link
US (2) US20030191341A1 (es)
EP (1) EP0851852B1 (es)
JP (1) JP3886533B2 (es)
KR (1) KR100423572B1 (es)
CN (1) CN1078885C (es)
AR (1) AR003328A1 (es)
AT (1) ATE191450T1 (es)
AU (1) AU6663996A (es)
BR (1) BR9610294A (es)
CA (1) CA2229735C (es)
DE (1) DE69607633T2 (es)
ES (1) ES2145475T3 (es)
GB (1) GB9518705D0 (es)
HU (1) HU224865B1 (es)
IL (1) IL123616A (es)
TW (1) TW460447B (es)
WO (1) WO1997010199A1 (es)
ZA (1) ZA966931B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6028219A (en) * 1995-09-13 2000-02-22 Zeneca Limited Process for the nitration of diphenylethers
IN190438B (es) * 1996-11-01 2003-07-26 Syngenta Ltd
GB9930369D0 (en) 1999-12-22 2000-02-09 Zeneca Ltd Chemical process
DE102007010161A1 (de) 2007-03-02 2008-09-04 Saltigo Gmbh Verfahren zur Nitrierung substituierter Benzole in Gegenwart von Propionsäure
CN101486654B (zh) * 2009-03-04 2012-10-10 西安近代化学研究所 2-甲基-3-硝基苯乙酸合成方法
CN103787890A (zh) * 2014-02-28 2014-05-14 江苏省激素研究所股份有限公司 一种三氟羧草醚的合成方法
CN105820054A (zh) * 2016-04-26 2016-08-03 合肥工业大学 一种3-甲基-2-硝基苯甲酸甲酯的制备方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4031131A (en) * 1975-09-29 1977-06-21 Rohm And Haas Company Process for preparing phenoxybenzoic acids
US4400530A (en) * 1980-06-27 1983-08-23 Ppg Industries, Inc. Process for preparing substituted diphenyl ethers
US4405805A (en) * 1981-07-27 1983-09-20 Rhone-Poulenc, Inc. Process for recovering and purifying herbicidal phenoxybenzoic acid derivatives
US4594440A (en) * 1981-07-27 1986-06-10 Rhone:Pulenc, Inc. Process for recovering and purifying herbicidal phenoxybenzoic acid derivatives
US4424393A (en) * 1981-08-24 1984-01-03 Ppg Industries, Inc. Process of preparation of substituted diphenyl ethers
US4743703A (en) * 1981-10-19 1988-05-10 Rohm And Haas Company Herbicidal 4-fluoroalkyl-4'-nitrodiphenyl ethers
US4429146A (en) * 1982-04-15 1984-01-31 Gaf Corporation Substituted diphenyl ether herbicides and process for use
DE3480539D1 (en) * 1984-01-03 1989-12-28 Gen Electric Nitration reactions with acid anhydride promoters
ES2119308T3 (es) * 1994-02-17 1998-10-01 Zeneca Ltd Proceso para la fosgenacion en presencia de acetonitrilo.

Also Published As

Publication number Publication date
CA2229735A1 (en) 1997-03-20
US20030191341A1 (en) 2003-10-09
JPH11512420A (ja) 1999-10-26
HUP9802863A2 (hu) 1999-03-29
JP3886533B2 (ja) 2007-02-28
IL123616A (en) 2001-06-14
DE69607633D1 (de) 2000-05-11
ZA966931B (en) 1997-03-13
BR9610294A (pt) 1999-03-16
HUP9802863A3 (en) 2000-08-28
ES2145475T3 (es) 2000-07-01
DE69607633T2 (de) 2000-08-31
EP0851852B1 (en) 2000-04-05
WO1997010199A1 (en) 1997-03-20
TW460447B (en) 2001-10-21
CN1196045A (zh) 1998-10-14
CA2229735C (en) 2008-10-28
AU6663996A (en) 1997-04-01
KR100423572B1 (ko) 2004-07-19
GB9518705D0 (en) 1995-11-15
HU224865B1 (en) 2006-03-28
IL123616A0 (en) 1998-10-30
KR19990044447A (ko) 1999-06-25
EP0851852A1 (en) 1998-07-08
CN1078885C (zh) 2002-02-06
ATE191450T1 (de) 2000-04-15
US20070055077A1 (en) 2007-03-08

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