The reaction kinetics among isoquinoline, dimethyl acetylenedicarboxylate, and indole (as NH-acid) were investigated using ultraviolet (UV) spectrophotometry. The reaction rate equation was obtained, the dependence of the reaction rate on different reactants was determined, and the overall rate constant (k_ov) was calculated. By studying the effects of solvent, temperature, and concentration on the reaction rate, some useful information was obtained. A logical mechanism consistent with the experimental observations was proposed. Also, comprehensive theoretical studies were performed to evaluate the potential energy surfaces of all structures that participated in the reaction mechanism. Finally, the proposed mechanism was confirmed by the obtained results and the probable and logical reaction paths and also a correct product configuration were suggested based on the theoretical results.

用紫外（UV）分光光度法研究了异喹啉，乙炔二甲酸二甲酯和吲哚（作为NH-酸）之间的反应动力学。得到了反应速率方程，确定了反应速率对不同反应物的依赖性，并且总速率常数（k _ov）进行了计算。通过研究溶剂，温度和浓度对反应速率的影响，获得了一些有用的信息。提出了与实验结果一致的逻辑机制。此外，进行了全面的理论研究，以评估参与反应机理的所有结构的势能面。最后，所获得的结果证实了所提出的机理，并基于理论结果提出了可能的和合理的反应路径以及正确的产物构型。