Trifluoroaceto-N-phenylhydrazonoyl halides, the precursors of trifluoroacetonitrile phenylimine, prepared by halogenation of trifluoroacetaldehyde phenylhydrazone, react with various olefins and acetylenes in the presence of triethylamine to give 3-trifluoromethylpyrazolines and pyrazoles, respectively. The regioselective results are discussed in terms of HOMO-LUMO interaction of trifluoroacetonitrile
                                    三
氟乙酰-N-苯腙
酰卤是
三氟乙腈苯
亚胺的前体,由三
氟乙醛苯腙卤化制备,在
三乙胺存在下与各种烯烃和
乙炔反应,分别生成3-三
氟甲基
吡唑啉和
吡唑。区域选择性结果根据
三氟乙腈苯基
亚胺和偶极体的 HOMO-LUMO 相互作用进行了讨论。