Investigation into the Regiochemistry of Some Pyrazoles Derived from 1,3-Dipolar Cycloaddition of Methyl Methacrylate with Some Nitrilimines: A Combined Theoretical and Experimental Study
作者:Mehdi Bakavoli、Farid Moeinpour、Abolghasem Davoodnia、Ali Morsali
DOI:10.1002/cjoc.201190218
日期:2011.6
methacrylate as dipolarophile and some nitrilimines which were generated in situ afforded the new pyrazoles. The regiochemistry and reactivity of these reactions has been investigated on the basis of density functional theory (DFT)‐based reactivity indexes and activation energy calculations. The theoretical 13C NMR chemical shifts of the cycloadducts which were obtained by GIAO method were comparable with
甲基丙烯酸甲酯作为双极性亲和剂与一些原位产生的腈亚胺之间的1,3-偶极环加成反应提供了新的吡唑。在基于密度泛函理论(DFT)的反应指数和活化能计算的基础上,研究了这些反应的区域化学和反应性。通过GIAO方法获得的环加合物的理论13 C NMR化学位移与观察值相当。