We succeeded in demonstrating the iron- or cobalt-catalyzed asymmetric Nazarov cyclization of divinyl ketones using iron or cobalt catalysts, which were prepared from Co(ClO4)2Ë6H2O, Fe(ClO4)2Ë6H2O, or Fe(OTf)2 with a chiral pybox-type ligand. Furthermore, we found that Fe(OTf)2 effectively catalyzed the tandem Nazarov cyclization-fluorination reaction of divinyl ketones.
我们成功地证明了
铁或
钴催化的二
乙烯酮不对称纳扎罗夫环化反应,这些催化剂是由Co(
ClO4)2Ë6H2O、Fe( )2Ë6H2O或Fe(OTf)2与手性
吡咯类
配体制备而成的。此外,我们还发现,Fe(OTf)2 能有效催化二
乙烯酮的串联纳扎罗夫环化-
氟化反应。