A PROCESS FOR PREPARING ANTHRANILIC DIAMIDES AND INTERMEDIATES THEREOF

The present invention relates a novel process for preparing a compound of Formula I, wherein, R1, R2, R3a, R3b, R3c, R4, R5, R6, R7 and Z are as defined in the description. The process comprises a novel and inventive step of converting a dione of Formula II into an isatoic anhydride of Formula V in...

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Main Authors SALVI, VIJAY KUMAR, SYTHANA, SURESH KUMAR, KLAUSENER, ALEXANDER, PANMAND, DEEPAK SHANKAR, NAGLE, PRAMOD SUBHASH, KANAWADE, SHRIKANT BHAUSAHEB, KALE, YUVRAJ NAVNATH
Format Patent
LanguageEnglish
French
Published 27.08.2020
Subjects
CHEMISTRY
HETEROCYCLIC COMPOUNDS
METALLURGY
ORGANIC CHEMISTRY
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Summary:The present invention relates a novel process for preparing a compound of Formula I, wherein, R1, R2, R3a, R3b, R3c, R4, R5, R6, R7 and Z are as defined in the description. The process comprises a novel and inventive step of converting a dione of Formula II into an isatoic anhydride of Formula V in a single step, wherein, R2 is F, Cl, Br or I; R1, R3a, R3b, R3c, R4, R5, R6, R7 and Z are as defined in the description. La présente invention concerne un nouveau procédé de préparation d'un composé de formule I, dans laquelle R1, R2, R3a, R3b, R3c, R4, R5, R6, R7 et Z sont tels que définis dans la description. Le procédé comprend une étape nouvelle et inventive destinée à la conversion de dione de formule II en un anhydride isatoïque de formule V en une seule étape, R2 étant F, Cl, Br ou I ; R1, R3a, R3b, R3c, R4, R5, R6, R7 et Z étant tels que définis dans la description.
Bibliography:Application Number: CA20203129876