An access to 1H-cyclopenta[b]pyridine-4,5-diones via condensation of 6-nitro-1,2-o-quinone with arylamines and acetone
作者:Eugeny Ivakhnenko、Vasily Malay、Oleg Demidov、Andrey Starikov、Vladimir Minkin
DOI:10.1016/j.tet.2021.132575
日期:2022.1
A facile synthesis of derivatives of a new heterocyclic 1H-cyclopenta[b]pyridine-4,5-dione system via coupling sterically crowded 3,5-di(tert-butyl)-6-nitro-1,2-benzoquinone with arylamines and acetone was developed. The reaction mechanism involving intramolecular 1,2-shift and intermolecular transfer of tert-butyl groups of the reaction intermediates was examined on the basis of DFT/B3LYP/6–311++G(d
通过将空间拥挤的 3,5-二(叔丁基)-6-硝基-1,2-苯醌与芳胺和开发了丙酮。在DFT/B3LYP/6–311++G(d,p) (SMD) 计算的基础上,研究了涉及反应中间体叔丁基的分子内 1,2-移位和分子间转移的反应机理。