Synthesis, crystal structure and calculation of oxides of 2-methylamino-3-methyl quinoxaline
作者:Rui Wang、Min Zhang、Wenfeng Wang、Xucheng Wang、Yaofeng Yuan、Junjian Li
DOI:10.1016/j.molstruc.2020.128826
日期:2020.12
Abstract Monoxide and dioxide of animo quinoxaline were synthesized and characterized by 1H NMR, 13C NMR and HRMS. The result shows that monoxide is main product. 1H NMR analysis, quantum calculation and crystal structure all indicate that the monoxide is 4-oxide structure but not 1-oxide structure. The subsequent discussions of electronic effect and steric effect of 1-oxide and 4-oxide support the
摘要 合成了氨基喹喔啉的一氧化物和二氧化物,并用1H NMR、13C NMR和HRMS进行了表征。结果表明,一氧化碳是主要产物。1H NMR分析、量子计算和晶体结构均表明该一氧化物为4-氧化物结构而不是1-氧化物结构。随后对1-氧化物和4-氧化物的电子效应和空间效应的讨论支持了4-氧化物为主导产物的结论,这与1H NMR分析和晶体结构一致。最后,计算出的结构与本文的晶体结构吻合较好,说明本文计算结果是可信的。