The preparation of e-oxime ethers of phenylglyoxylic esters

Details The preparation of e-oxime ethers of phenylglyoxylic esters The preparation of e-oxime ethers of phenylglyoxylic esters

C - Chemistry, Metallurgy

07

C

C07C 251/48 (2006.01) C07C 67/30 (2006.01) C07C 69/73 (2006.01) C07C 249/12 (2006.01)

Patent

CA 2088562

E-Oxime ethers of phenylglyoxylic esters of the formula I (see formula I) x, y = halogen, alkyl, alkoxy, CF3, C(=NOR)R (R = alkyl or alkenyl) are prepared by reacting oximes of the formula II (see formula II) with a methylating agent in an organic diluent, and E-oximes of phenylglyoxylic esters of the formula II are prepared by isomerizing the E/Z-oximes.

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