Process for the preparation of nitroalkenes

Details Process for the preparation of nitroalkenes Process for the preparation of nitroalkenes

C - Chemistry, Metallurgy

07

B

C07B 43/02 (2006.01) C07C 201/08 (2006.01) C07C 205/04 (2006.01) C07C 205/05 (2006.01) C07D 311/58 (2006.01)

Patent

CA 2412232

A process for the nitration of conjugated alkenes of formula (I) wherein R, R1, R2, R3 and R4 have the meanings reported in the description, which allows to obtain the corresponding .beta.-nitro-alkenes, characterised in that the nitrating agent is a mixture of an inorganic nitrite and iodine in the presence of an oxidising agent is described.

L'invention concerne un procédé de nitration des alcènes conjugués de la formule (I), dans laquelle R, R¿1?, R¿2?, R¿3? et R¿4 ?ont les significations données dans la description, lequel permet d'obtenir les .beta.-nitro-alcènes correspondants, caractérisé par le fait que l'agent de nitration est un mélange d'un nitrite non organique et d'iode en présence d'un agent oxydant.

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