申请人:Hoechet AG
公开号:US05569776A1
公开(公告)日:1996-10-29
Process for the preparation of 4-fluoroalkoxycinnamonitriles. The invention relates to a process for the preparation of fluoroalkoxycinnamonitriles of the formula (I) ##STR1## in which n is 1 to 8 and m is 1 to 17, where m.ltoreq.2n+1, by reacting 4-fluorobenzaldehyde with a fluoroalkanol of the formula (II) H.sub.2n+1-m F.sub.m C.sub.n O--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.
用于制备4-氟烷氧基肉桂腈的工艺。该发明涉及一种制备式(I)的氟烷氧基肉桂腈的工艺 ##STR1## 其中n为1至8,m为1至17,其中m≤2n+1,通过将4-氟苯甲醛与式(II)的氟烷醇反应而得到,其中H2n+1-mFmCnO-H (II),其中m和n如上所定义,在碱的存在下,并在必要时,在溶剂的存在下,反应产生的4-氟烷氧基苯甲醛与氰乙酸或烷基氰乙酸酯在碱的存在下,并在必要时,在溶剂的存在下反应。