Metal-Controlled Cycloaddition of 2‑Alkynyl-1,4-benzoquinones and Styrenyl Systems: Lewis Acid versus π Acid

Metal-controlled cycloaddition of 2-alkynyl-1,4-benzoquinones and electron-rich styrenyl systems were investigated. The density functional theory (DFT) calculations revealed that the regioselectivity of the cycloaddition results from the different activation modes of Bi(OTf)3 and AuCl.

本研究对2-炔基-1,4-苯醌与富电子苯乙烯类体系的金属调控环加成反应进行了考察。密度泛函理论（density functional theory，DFT）计算结果表明，该环加成反应的区域选择性源于三氟甲磺酸铋（Bi(OTf)3）与氯化金（AuCl）的不同活化模式。