作者:Jonas J. Koenig、Thiemo Arndt、Nora Gildemeister、Jörg-M. Neudörfl、Martin Breugst
DOI:10.1021/acs.joc.9b01083
日期:2019.6.21
very mild, metal-free reaction conditions using molecular iodine as the catalyst. A variety of different divinyl ketones including aromatic systems undergo the iodine-catalyzed reaction with moderate to very good yields in both polar and apolar solvents. Our mechanistic studies indicate that the Nazarov system is activated through a halogen bond between the carbonyl group and the catalyst, and other