Synthesis of 5-aryl-N -(trichloroacetyl)-1,3,4-oxadiazole-2-carboxamide via three-component reaction of trichloroacetyl isocyanate, (N -isocyanimino)triphenylphosphorane, and benzoic acid derivatives

Authors : NAHID SHAJARI, ALI REZA KAZEMIZADEH, ALI RAMAZANI

Pages : 874-879

Doi:10.3906/kim-1501-43

View : 14 | Download : 12

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The three-component reaction of benzoic acid derivatives, insert ignore into journalissuearticles values($N$-isocyanimino);triphenylphosphorane, and trichloroacetyl isocyanate in a 1:1:1 ratio in CH$_{3}$CN occurred at room temperature, and the 5-aryl-$N$-insert ignore into journalissuearticles values(trichloroacetyl);-1,3,4-oxadiazole-2-carboxamide derivatives produced were formed in high yields. The reaction proceeded smoothly and cleanly under mild reaction conditions and no side reactions were observed. The structures of the products were confirmed by IR, $^{1}$H NMR, $^{13}$C NMR, mass spectroscopy, and elemental analysis.
Keywords : Multicomponent reactions, 1, 3, 4 oxadiazoles, trichloroacetyl isocyanate, N isocyanimino, triphenylphosp horane, aza Wittig