Nitrone/Imine Selectivity Switch in Base‐Catalysed Reaction of Aryl Acetic Acid Esters with Nitrosoarenes: Joint Experimental and Computational Study
作者:Chiara Volpe、Sara Meninno、Angelo Roselli、Michele Mancinelli、Andrea Mazzanti、Alessandra Lattanzi
DOI:10.1002/adsc.202000855
日期:2020.12.8
2‐diazaphosphorine (BEMP) at room temperature. Depending on the substitution pattern and nature of the aryl moiety, a switch toward the formation of imines can be observed. The mechanistic framework is put to scrutiny by experimental and theoretical studies, pointing to the formation of a nitroso aldol intermediate, whose fate toward one of the competing pathways, namely hydride transfer or elimination
在此,我们报告了在2-叔丁基亚氨基-2-二乙基氨基-1,3-二甲基过氢-1,3,室温下使用2-重氮磷(BEMP)。取决于取代模式和芳基部分的性质,可以观察到向亚胺形成的转换。在机械框架由实验和理论研究投入推敲,指向形成亚硝基羟醛中间体,其命运朝向竞争性途径,即氢化物转移或消除一个,将取决于NOH / CH α相对酸度。