Selective and facile synthesis of α,β-unsaturated nitriles and amides with N-hydroxyphthalimide as the nitrogen source
作者:Yiyan Yan、Xiaohe Xu、Xiaokang Jie、Jingya Cheng、Renren Bai、Qi Shuai、Yuanyuan Xie
DOI:10.1016/j.tetlet.2018.06.011
日期:2018.7
The direct conversion of α,β-unsaturated aldehydes to corresponding nitriles promoted by Pd(OAc)2 and phthalic acid which was hydrolyzed from N-hydroxyphthalimide (NHPI) has been disclosed. Additionally, it was found that when water was used as the solvent, α,β-unsaturated amides was obtained as the main products in good to excellent yields. It was first reported that NHPI was utilized as the nitrogen
已经公开了由N-羟基邻苯二甲酰亚胺(NHPI)水解的Pd(OAc)2和邻苯二甲酸促进的α,β-不饱和醛直接转化为相应的腈。另外,发现当使用水作为溶剂时,以良好至优异的产率获得α,β-不饱和酰胺作为主要产物。首次报道,NHPI被用作氮源,由醛合成α,β-不饱和腈和酰胺。对照实验表明,醛经过肟化和脱水过程形成腈和酰胺。