Game of Isomers: Bifurcation in the Catalytic Formation of Bis[1]benzothieno[1,4]thiazines with Conformation-Dependent Electronic Properties
作者:Arno P. W. Schneeweis、Simone T. Hauer、Daniel A. Lopez、Björn von Dressler、Guido J. Reiss、Thomas J. J. Müller
DOI:10.1021/acs.joc.9b00517
日期:2019.5.3
Two regioisomers of bis[1]benzothieno[1,4]thiazine are unexpectedly obtained by tuning the catalytic conditions of the intermolecular–intramolecular Buchwald–Hartwig amination. Mechanistic insights and evidence of intermediates support a conclusive mechanistic rationale. Furthermore, a computationally based study on the influence of conformational aspects on the HOMO energy level of anellated 1,4-thiazine
通过调节分子间-分子内布赫瓦尔德-哈特维格胺的催化条件,意外地获得了双[1]苯并噻吩并[1,4]噻嗪的两种区域异构体。机械学的见解和中间体的证据支持了确凿的机械学原理。此外,基于计算的构象方面对带电荷的1,4-噻嗪HOMO能级影响的研究为增强电子性能铺平了道路,从而成功实现了更高的发光度和更易氧化的syn - syn bis [1] benzothieno [ 1,4]噻嗪。