Process for the preparation of primary amines

C - Chemistry – Metallurgy – 07 – C

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C07C 209/42 (2006.01) C07C 213/02 (2006.01) C07D 249/08 (2006.01) C07C 217/40 (2006.01) C07C 217/48 (2006.01)

Patent

CA 2481708

Process for the preparation of primary amines of formula (I): on enclosed where R3 represents an alkyl, cycloalkyl or aralkyl group, by reaction of a triazolium salt of formula (II): (formula see on enclosed paper version) where R1 and R2 represent hydrogen or an alkyl, aralkyl or aryl group, R4 represents an alkyl or aralkyl group or a residue of an organic polymer functionalized by an alkylating group, and A- represents a halogen, alkylsulphonate, arylsulphonate, alkyl sulphate, hydrogensulphate, hemisulphate, perchlorate or hydroxide, with a hydride, in order to obtain an amine of formula (I), which is isolated, if desired, and intermediates.

Procédé de préparation d'amines primaires représentées par la formule (I) dans laquelle R3 représente un groupe alkyle, cycloalkyle ou aralkyle, par la mise en réaction d'un sel de triazolium représenté par la formule (II) dans laquelle R1 et R2 représentent hydrogène ou un groupe alkyle, aralkyle ou aryle, R4 représente un groupe alkyle ou aralkyle, ou un résidu d'un polymère organique fonctionnalisé par un groupe alkylant, et A représente halogène, alkylsulfonate, arylsulfonate, alkylsulfate, sulfate d'hydrogène, hémisulfate, perchlorate ou hydroxyde, avec un hydrure afin de produire une amine représentée par la formule (I) et qui est au besoin isolée, ainsi que des produits intermédiaires.

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