作者:Jeffrey C. Ferreira、Jacob C. Hood、Douglas A. Klumpp
DOI:10.1016/j.tet.2022.133123
日期:2022.12
Biaryl ethers condense directly with carbonyl groups on diazafluorenones, acenaphthenequinone, and isatins, to give a variety of spirocyclic compounds. The condensation reactions are promoted by the Brønsted superacid, CF3SO3H (triflic acid). This methodology provides a convenient one-pot synthetic route to aromatic spirocycles.
联芳基醚直接与二氮杂芴酮、苊醌和靛红上的羰基缩合,得到多种螺环化合物。Brønsted 超强酸 CF 3 SO 3 H(三氟甲磺酸)可促进缩合反应。该方法为芳香螺环化合物提供了一条方便的一锅法合成路线。