Preparation of o-(2-hydroxyalkyl)oximes

Details Preparation of o-(2-hydroxyalkyl)oximes Preparation of o-(2-hydroxyalkyl)oximes

C - Chemistry, Metallurgy

07

C

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

Patent

CA 2196451

A method is disclosed of producing O-(2-hydroxyalkyl)-oximes of formula (I), wherein R1 and R2 represent an alkyl, of R1 and R2 and the carbon atom which carries them represent a 5- to 7-membered cycloalkyl, by the catalytic hydration of O-(2,3-epoxyalkyl)-oxime of general formula (II) with hydrogen, The products of formula (I) are suitable for use as intermediate products in the production of herbicides.

L'invention concerne un procédé de production de 0-(2-hydroxyalkyl)-oximes de formule (I) où R<1> et R<2> représentent alkyle, ou bien R<1> et R<2> ainsi que l'atome de carbone qui les porte représentent un cycloalkyle de cinq à sept chaînons. Ce procédé consiste à hydrogéner par voie catalytique un 0-(2,3-époxyalkyl)-oxime de formule (II). Les produits de formule (I) se prêtent à une utilisation sous forme d'intermédiaires pour herbicides.

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