Process for the preparation of 4- fluoroalkoxycinnamonitriles

Details Process for the preparation of 4- fluoroalkoxycinnamonitriles Process for the preparation of 4- fluoroalkoxycinnamonitriles

C - Chemistry, Metallurgy

07

C

C07C 255/37 (2006.01) C07C 45/71 (2006.01) C07C 47/575 (2006.01) C07C 253/30 (2006.01)

Patent

CA 2144271

Process for the preparation of 4-fluoroalkoxycinnamo- nitriles. The invention relates to a process for the preparation of fluoroalkoxycinnamonitriles of the formula (I) Image ( I ) in which n is 1 to 8 and m is 1 to 17, where m ? 2n+1, by reacting 4-fluorobenzaldehyde with a fluoroalkanol of the formula (II) H2n+1-mFmCnO-H (II) in which m and n are as defined above, in the presence of a base and, if appropriate, a solvent, and reacting the resulting 4-fluoroalkoxybenzaldehyde with cyanoacetic acid or an alkyl cyanoacetate in the presence of a base and, if appropriate, a solvent.

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