GEP19981258B - Method for obtaining e-isomers of acrylic acid derivatives
- Google Patents
Method for obtaining e-isomers of acrylic acid derivatives
Info
Publication number
GEP19981258B
GEP19981258BGEAP19941905AGEAP1994001905AGEP19981258BGE P19981258 BGEP19981258 BGE P19981258BGE AP19941905 AGEAP19941905 AGE AP19941905AGE AP1994001905 AGEAP1994001905 AGE AP1994001905AGE P19981258 BGEP19981258 BGE P19981258B
Authority
GE
Georgia
Prior art keywords
group
halogen
substituted
pyridinil
reception
Prior art date
Application number
GEAP19941905A
Inventor
Majkl Gordon Khichings
Yan Ferguson
Patrik Dzhelf Krouli
Kristofer Richard Ejlz Godfri
Pol Defrejn
Dzhon Martin Klaf
Vivenn Margaret Entoni
Original Assignee
Ici Plc
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 Ici PlcfiledCriticalIci Plc
Priority to GEAP19941905ApriorityCriticalpatent/GEP19981258B/en
Publication of GEP19981258BpublicationCriticalpatent/GEP19981258B/en
Agricultural Chemicals And Associated Chemicals
(AREA)
Pyridine Compounds
(AREA)
Abstract
The invention refers to heterogeneous ring compounds and, in particular, to reception Е-isomers of acrylic acid derivatives of the formula: where W is pyridinil-or pyridinil group substituted by halogen, С1-С4-alkil which, in turn, can be substituted by halogen, phenyl, С1-С4-alkoxyl, phenoxy group which can be substituted 1- methoxy carbonyl-2- methoxy ethylene, halogen, cyano-or nitro group, amino phormamido-, nitro, - cyano-or N-oxide group; or W - quinolinol -or Quinosolinil group, probably substituted by halogen and connected with A one of atoms of carbon of a ring: A-O or group S (O) n, where n=0 or 1, or 2, provided that when W - 5-trifluoromethyl pyridinil-2 then A is not oxygen. Technical result of the invention is reception of the compounds possessing higher herbicidal activity. Reception is conducted by elimination in corresponding acetal of methanol in acid or alkaline conditions. 6 tab.
GEAP19941905A1994-05-161994-05-16Method for obtaining e-isomers of acrylic acid derivatives
GEP19981258B
(en)
METHOD FOR SYNTHESIZING 2-(4-METOXYPHENYLPROPIONYL)AMINO-6-n-PROPYLAMINO-4,5,6,7-TETRAHYDROBENZOTHIASOL IN FORM OF RACEMATE OR (-)-ENANTIOMER OR ITS ACID ADDITIVE SALT