Studies on the interactions of 5-<i>R</i>-3-(2-pyridyl)-1,2,4-triazines with arynes: inverse demand aza-Diels–Alder reaction <i>versus</i> aryne-mediated domino process
作者:Dmitry S. Kopchuk、Igor L. Nikonov、Albert F. Khasanov、Kousik Giri、Sougata Santra、Igor S. Kovalev、Emiliya V. Nosova、Sravya Gundala、Padmavathi Venkatapuram、Grigory V. Zyryanov、Adinath Majee、Oleg N. Chupakhin
DOI:10.1039/c8ob00847g
日期:——
aza-Diels–Alder products or 1,2,4-triazine ring rearrangement (domino) products as major ones depending on the nature of both the substituents at the C5 position of the 1,2,4-triazine core or in the aryne moiety. The structures of the key products were confirmed based on X-ray data. Based on the density functional theoretical (DFT) studies of the Diels–Alder transition state geometries, the influence of the nature
已经研究了取代的5 - R -3-(吡啶基-2)-1,2,4-三嗪与原位生成的取代的芳烃中间体之间的相互作用。根据1,2,5碳原子上两个取代基的性质,反应可提供反需求(ID)的aza-Diels-Alder产品或1,2,4-三嗪环重排(domino)产品作为主要产品。 4-三嗪核或在芳烃部分。根据X射线数据确定了关键产品的结构。基于Diels–Alder过渡态几何的密度泛函理论(DFT)研究,提出了芳烃性质对1,2,4-三嗪转化方向的影响。