TW200631928A - Process for the production of nitrobenzole - Google Patents

Process for the production of nitrobenzole

Info

Publication number
TW200631928A
TW200631928A TW095105574A TW95105574A TW200631928A TW 200631928 A TW200631928 A TW 200631928A TW 095105574 A TW095105574 A TW 095105574A TW 95105574 A TW95105574 A TW 95105574A TW 200631928 A TW200631928 A TW 200631928A
Authority
TW
Taiwan
Prior art keywords
compound
formula
substituents
reaction
base
Prior art date
Application number
TW095105574A
Other languages
Chinese (zh)
Inventor
Harald Walter
Camilla Corsi
Josef Ehrenfreund
Clemens Lamberth
Hermann Schneider
Hans Tobler
Original Assignee
Syngenta Participations Ag
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 filed Critical Syngenta Participations Ag
Publication of TW200631928A publication Critical patent/TW200631928A/en

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
    • C07C201/12—Preparation of nitro compounds by reactions not involving the formation of nitro groups
    • 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
    • C07C303/26—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of esters of sulfonic acids
    • C07C303/28—Preparation of esters or amides of sulfuric acids; Preparation of sulfonic acids or of their esters, halides, anhydrides or amides of esters of sulfonic acids by reaction of hydroxy compounds with sulfonic acids or derivatives thereof
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C309/00—Sulfonic acids; Halides, esters, or anhydrides thereof
    • C07C309/63—Esters of sulfonic acids
    • C07C309/64—Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to acyclic carbon atoms
    • C07C309/65—Esters of sulfonic acids having sulfur atoms of esterified sulfo groups bound to acyclic carbon atoms of a saturated carbon skeleton
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00—Systems containing only non-condensed rings
    • C07C2601/02—Systems containing only non-condensed rings with a three-membered ring

Abstract

The present invention relates to a process for the preparation of compounds of formula I, wherein the substituents are as defined in claim 1, by (a) reaction of a compound of formula II, wherein the substituents are as defined in claim 1, with a reducing agent to form a compound of formula III, wherein the substituents are as defined in claim 1, and (b) reaction of that compound either (b1) with triphenylphosphine dibromide or triphenylphosphine dichloride or (b2) with RSO2Cl, wherein R is C1-C4 alkyl, C1-C4 fluoro alkyl, benzyl, phenyl, nitrophenyl, halophenyl or C1-C6 alkylphenyl, in the presence of a base, to form a compound of formula IV, wherein the substituents are as defined in claim 1; and (c) conversion of that compound in the presence of a base into a compound of formula I; and also to novel nitrobenzene intermediates for use in that process.
TW095105574A 2005-02-21 2006-02-20 Process for the production of nitrobenzole TW200631928A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH3012005 2005-02-21

Publications (1)

Publication Number Publication Date
TW200631928A true TW200631928A (en) 2006-09-16

Family

ID=36607257

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095105574A TW200631928A (en) 2005-02-21 2006-02-20 Process for the production of nitrobenzole

Country Status (3)

Country Link
AR (1) AR053136A1 (en)
TW (1) TW200631928A (en)
WO (1) WO2006087222A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AR053137A1 (en) * 2005-02-21 2007-04-25 Syngenta Participations Ag PROCESS FOR THE PREPARATION OF ANILINES

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MXPA04008314A (en) * 2002-03-05 2004-11-26 Syngenta Participations Ag O-cyclopropyl-carboxanilides and their use as fungicides.

Also Published As

Publication number Publication date
WO2006087222A1 (en) 2006-08-24
AR053136A1 (en) 2007-04-25

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