<i>N</i>-Isocyanimino-Triphenylphosphorane (Ph<sub>3</sub>Pnnc) as an Efficient Reagent for the Preparation of Fully Substituted 1,3,4-Oxadiazoles via Intramolecular <i>Aza</i>-Wittig Reaction in Water
作者:Ali Jafari、Ali Ramazani、Pegah Azimzadeh Asiabi、Fariba Sadri、Sang Woo Joo
DOI:10.1080/10426507.2015.1054486
日期:2015.12.2
GRAPHICAL ABSTRACT Abstract An efficient green protocol for the synthesis of 1,3,4-oxadiazoles derivatives via a one-pot three-component reaction of aromatic carboxylic acids, N-isocyanimino-triphenylphosphorane and ester derivatives of 2-oxopropyl alcohol (2-oxopropyl benzoate, 2-oxopropyl-4-bromobenzoate and 2-oxopropyl acetate) in water at room temperature have been developed. The present methodology
图形摘要 摘要 通过芳族羧酸、N-异氰亚氨基-三苯基正膦和 2-氧代丙醇(2-氧代丙基)的酯衍生物的一锅三组分反应合成 1,3,4-恶二唑衍生物的有效绿色方案。苯甲酸酯、2-氧代丙基-4-溴苯甲酸酯和乙酸2-氧代丙基酯)在室温下的水中。本方法提供了几个优点,例如程序简单、产率高、环境友好以及不存在任何挥发性和危险的有机溶剂。