Method for producing isochromane and derivatives thereof

Details Method for producing isochromane and derivatives thereof Method for producing isochromane and derivatives thereof

C - Chemistry, Metallurgy

07

D

C07D 311/76 (2006.01)

Patent

CA 2595339

The invention relates to an improved method for producing compounds of formula (1) on an industrial scale. In formula (1), R1, R2 and R3 respectively independently represent C1-6 alkyl, C2-6 alkenyl, C2-6 alkinyl or aryl, and R4 represents H, OC1-6 alkyl, Oaryl, OH, C1-6 alkyl, halogen, CN or NO2.

L'invention concerne un procédé amélioré permettant de produire des composés de formule 1 à l'échelle industrielle. Dans cette formule, R1, R2 et R3 désignent indépendamment les uns des autres, alkyle C1-6, alkényle C2-6, alkynyle C2- 6 ou aryle et R4 désigne H, alkyle OC1 6, aryle O, OH, alkyle C1-6, halogène, CN ou NO2.

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