Method for the preparation of high purity substituted...

Details Method for the preparation of high purity substituted... Method for the preparation of high purity substituted...

C - Chemistry, Metallurgy

07

D

C07D 209/60 (2006.01) C09B 23/02 (2006.01) C09B 23/08 (2006.01) C09B 23/10 (2006.01)

Patent

CA 2171954

Method for the preparation of high purity substituted benz[e]indoles corresponding to the general formula Image comprising the preparation of an arylhydrazine which is subjected to a Fischer indole synthesis with a suitable ketone, the benz[e]indole thus obtained being reacted with a radical R6, followed by subjection to a purification step. This method may more particularly be applied to the synthesis of Indocyanine Green.

Procédé de préparation de benz[e]indoles substitués de pureté élevée répondant à la formule générale (I) comprenant la préparation d'une arylhydrazine qui est soumise à une synthèse indolique de Fischer avec une cétone appropriée, le benz[e]indole ainsi obtenu étant mis à réagir avec un radical R6, puis soumis à une étape de purification. Ce procédé peut être plus particulièrement appliqué à la synthèse du Vert d'Indocyanine.

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