Mechanistic investigation of 1,3-dipolar cycloaddition between bifunctional 2-pyridylselenyl reagents and nitriles including reactions with cyanamides
作者:Alexey A. Artemjev、Alexey S. Kubasov、Maxim L. Kuznetsov、Mariya V. Grudova、Victor N. Khrustalev、Andreii S. Kritchenkov、Alexander G. Tskhovrebov
DOI:10.1039/d3ce00385j
日期:——
Novel selenodiazolium salts derived from the reaction between 2-pyridylselenyl reagents and cyanamides are described and fully characterized. Eight adducts were studied by means of single crystal structural analysis, which revealed the presence of four-center N⋯Se interactions for some of them with an estimated interaction energy of −3.9 kcal mol−1, as revealed by theoretical calculations. Importantly
描述并充分表征了源自 2-吡啶基硒基试剂与氨腈之间反应的新型硒二唑盐。通过单晶结构分析研究了 8 种加合物,结果表明其中一些加合物存在四中心 N⋯Se 相互作用,理论计算表明其相互作用能估计为 -3.9 kcal mol -1 。重要的是,通式 RC N (R = Me, Ph, Br, CCl 3 , Me 2 N, Ph(H)N) 和 2-pyridylchalcogenyl halides 2-PyChX (Ch = Se, Te; X = Cl, Br) 通过理论方法进行了研究,表明该过程的异步环加成性质。