Process for the preparation of o-substituted oximes

Details Process for the preparation of o-substituted oximes Process for the preparation of o-substituted oximes

C - Chemistry, Metallurgy

07

C

C07C 251/54 (2006.01) C07C 249/12 (2006.01)

Patent

CA 2136497

The invention relates to a process for the hydroxyalkylation of aldoximes and ketoximes by reacting said oximes with unsubstituted or substituted ethylene or propylene carbonate in the presence of a catalyst, which comprises the use of catalytic amounts of aN-alkylated, stable, organic amidine base or a pyridine which is substituted by a secondary amino group. The compounds are important intermediate for the synthesis of herbicides.

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