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1. WO2020201974 - NOVEL PROCESS FOR PREPARATION OF KEY INTERMEDIATE OF PINOXADEN

Publication Number WO/2020/201974
Publication Date 08.10.2020
International Application No. PCT/IB2020/052976
International Filing Date 28.03.2020
Chapter 2 Demand Filed 09.09.2020
IPC
C07C 69/76 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
69Esters of carboxylic acids; Esters of carbonic or haloformic acids
76Esters of carboxylic acids having an esterified carboxyl group bound to a carbon atom of a six-membered aromatic ring
C07C 67/317 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
30by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
317by splitting-off hydrogen or functional groups; by hydrogenolysis of functional groups
C07C 67/307 2006.01
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
67Preparation of carboxylic acid esters
30by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
307by introduction of halogen; by substitution of halogen atoms by other halogen atoms
Applicants
  • BHAGIRADHA CHEMICALS & INDUSTRIES LIMITED [IN]/[IN]
Inventors
  • S, Chandrasekhar
  • B, Punith
  • B, Sivarami Reddy
Agents
  • VISHWANATHULA, Ramesh Babu
Priority Data
20194101313601.04.2019IN
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) NOVEL PROCESS FOR PREPARATION OF KEY INTERMEDIATE OF PINOXADEN
(FR) NOUVEAU PROCÉDÉ DE PRÉPARATION D'UN INTERMÉDIAIRE CLÉ DE PINOXADEN
Abstract
(EN)
The present invention relates to a novel process for preparation of compounds of formula (I) used in the synthesis of Pinoxaden. The intermediate is a substituted phenyl malonic esters of formula (I), where R is C1-C4 alkyl, straight or branched chain.
(FR)
La présente invention concerne un nouveau procédé de préparation de composés de formule (I) utilisés dans la synthèse de pinoxaden. L'intermédiaire est un ester phénylmalonique substitué de formule (I), où R est une chaîne alkyle en C1-C4, linéaire ou ramifiée.
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