A PROCESS FOR THE PREPARATION OF SUBSTITUTED PYRIDINE COMPOUNDS AND INTERMEDIATES THEREOF

The present invention discloses a process for the preparation of substituted pyridine compounds of formula (I), comprises a step in which vinylogous nitriles of formula (II), are obtained from substituted ?,?-unsaturated nitrile compounds of formula (III), and a further step of converting the vinylo...

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Main Authors SYTHANA, SURESH KUMAR, KLAUSENER, ALEXANDER G.M, PATRA, PRANAB KUMAR, NAGLE, PRAMOD, SHENDE, KANTILAL BALU, SINGH, VIPENDER
Format Patent
LanguageEnglish
French
Published 17.03.2022
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Summary:The present invention discloses a process for the preparation of substituted pyridine compounds of formula (I), comprises a step in which vinylogous nitriles of formula (II), are obtained from substituted ?,?-unsaturated nitrile compounds of formula (III), and a further step of converting the vinylogous nitrile compounds of formula (II) into substituted pyridines of formula (I); wherein R1, R2, R3, R4 and LG are as defined in the description. La présente invention divulgue un procédé de préparation de composés pyridine substitués de formule (I), qui comprend une étape au cours de laquelle des nitriles vinylogues de formule (II) sont obtenus à partir de composés nitriles ?,?-insaturés substitués de formule (III), et une étape supplémentaire de conversion des composés nitriles vinylogues de formule (II) en pyridines substituées de formule (I); dans lesquelles R1, R2, R3, R4 et LG sont tels que définis dans la description.
Bibliography:Application Number: CA20213191822