化学性质
2-(4-氯苯基)己腈纯品为无色透明液体,沸点在170~172℃/1.333kPa。工业品则为棕红色透明液体,不溶于水,能够溶于甲苯、乙醇和丙酮等有机溶剂。
用途
2-(4-氯苯基)己腈是杀菌剂腈菌唑和咪菌唑的重要中间体。
生产方法
其制备方法是在反应釜中加入对氯苯乙腈、1-氯正丁烷及催化剂,搅拌升温至40℃后滴加NaOH水溶液。加毕后在65℃下保温反应8小时。降温后将反应物转入另一反应釜,并加入少量水,在冷却至约0℃的条件下慢慢加入盐酸中和至中性,再用甲苯萃取。经过萃取、水洗步骤后,将甲苯溶液脱溶得到粗品2-(4-氯苯基)己腈,最后通过精馏得到成品。
2-p-Chlorophenyl-1-butanol (V) has been synthesized by the condensation of p-chlorophenacyl chloride (I) with ethylmagnesium chloride and dehydrochlorination of the resulting 1-chloro-2-p-chlorophenyl-2-butanol (II) to 2-ethyl-2-p-chlorophenyloxirane (III), followed by reduction. It has been discovered that reduction of III with lithium aluminium hydride yielded the tertiary alcohol, 2-p-chlorophenyl-2-butanol (IV), while reduction of III with aluminium hydride yielded the primary alcohol V. The two alcohols IV and V were also prepared by unambiguous methods. Attempts to synthesize the higher homologues of the alcohol V were not very successful.
Robust bifunctional CoIII –complexes featuring amine-functionalized NHC ligands have been developed as highly effective catalysts for the nitrile α-alkylation with diverse alcohols, spanning from aliphatic to aromatic including the secondary ones.