光化学
反应性(心理学)
电子受体
化学
吸收(声学)
电子供体
反应机理
接受者
极地的
催化作用
有机化学
物理
凝聚态物理
医学
替代医学
病理
天文
声学
作者
Meiqiong Tang,Felicity Draper,Le Nhan Pham,Curtis C. Ho,Hongjun Zhu,Jianwei Sun,Stuart C. Thickett,Michelle L. Coote,Timothy U. Connell,Alex C. Bissember
标识
DOI:10.1021/acs.joc.3c02746
摘要
This report investigates the mechanism of photochemical Povarov-type reactions of N,N-dialkylanilines and maleimides in polar solvents (DMF or dioxane) in the presence of light. Fundamental aspects of the electron donor-acceptor (EDA) photoactivation pathway proposed to underpin this chemistry are examined through integrated experimental and computational studies. This approach provided evidence supporting the involvement of an EDA complex in facilitating this chemistry via a reaction mechanism that does not involve a triplet manifold. Most notably, our findings indicate that relying solely on UV-vis absorption spectroscopic data to either account for or predict reactivity in synthetic experiments may not always provide the complete picture. More specifically, this relates to considering UV-vis absorption spectroscopic data, calculated values for association constants (KEDA) and molar extinction coefficients (ε), with the reactivity observed in associated synthetic reactions in practice.
科研通智能强力驱动
Strongly Powered by AbleSci AI