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1. WO2000017186 - PROCESS FOR PREPARING 3-ISOCHROMANONE

Publication Number WO/2000/017186
Publication Date 30.03.2000
International Application No. PCT/GB1999/002783
International Filing Date 23.08.1999
Chapter 2 Demand Filed 20.01.2000
IPC
C07D 311/76 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
311Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
02ortho- or peri-condensed with carbocyclic rings or ring systems
76Benzo pyrans
CPC
C07D 311/76
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
DHETEROCYCLIC COMPOUNDS
311Heterocyclic compounds containing six-membered rings having one oxygen atom as the only hetero atom, condensed with other rings
02ortho- or peri-condensed with carbocyclic rings or ring systems
76Benzo[c]pyrans
Applicants
  • SYNGENTA LIMITED [GB]/[GB] (AllExceptUS)
  • JONES, Raymond, Vincent, Heavon [GB]/[GB] (UsOnly)
  • WHITTON, Alan, John [GB]/[GB] (UsOnly)
  • WHITE, Jennifer, Ann [GB]/[GB] (UsOnly)
  • RITCHIE, David, John [GB]/[GB] (UsOnly)
  • FIELDHOUSE, Robin [GB]/[GB] (UsOnly)
  • MacCORMICK, Kirstin [GB]/[GB] (UsOnly)
  • NISBET, Logan, Thomson [GB]/[GB] (UsOnly)
  • EVANS, Paul, Richard [GB]/[GB] (UsOnly)
  • BENNIE, Colin, John [GB]/[GB] (UsOnly)
Inventors
  • JONES, Raymond, Vincent, Heavon
  • WHITTON, Alan, John
  • WHITE, Jennifer, Ann
  • RITCHIE, David, John
  • FIELDHOUSE, Robin
  • MacCORMICK, Kirstin
  • NISBET, Logan, Thomson
  • EVANS, Paul, Richard
  • BENNIE, Colin, John
Agents
  • HOUGHTON, Malcolm, John
Priority Data
9820465.418.09.1998GB
9913325.808.06.1999GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR PREPARING 3-ISOCHROMANONE
(FR) PROCEDE DE PREPARATION DE 3-ISOCHROMANONE
Abstract
(EN)
A process for the preparation of 3-isochromanone which comprises contacting an o-xylene-$g(a),$g(a)'-dihalide with carbon monoxide, in the presence of a catalyst and a hindered amine base in a liquid medium comprising water and a tertiary alcohol.
(FR)
Ce procédé de préparation de 3-isochromanone consiste à mettre en contact un ortho-xylène-$g(a),di-halogénure-$g(a) avec du monoxyde de carbone, en présence d'un catalyseur et d'une base amine empêchée dans un milieu liquide contenant de l'eau et un alcool tertiaire.
Also published as
ININ/PCT/2001/00223/MUM
ZA200101690
Latest bibliographic data on file with the International Bureau