A Highly Enantioselective One-Pot Synthesis of Spirolactones by an Organocatalyzed Michael Addition/Cyclization Sequence
作者:Silvia Sternativo、Antonella Calandriello、Ferdinando Costantino、Lorenzo Testaferri、Marcello Tiecco、Francesca Marini
DOI:10.1002/anie.201104819
日期:2011.9.26
organocatalytic Michael addition/cyclization sequence based on the bis(electrophilic) properties of vinyl selenones has been successfully employed for the synthesis of densely functionalized spirocyclic compounds (see scheme). By using a simple one‐pot procedure and mild reaction conditions, spirocyclic compounds were synthesized in high yields and with high levels of enantioselectivity (90–98 % ee).
控制中的喷发:基于乙烯基硒酮的双(亲电子)性质的新型有机催化迈克尔加成/环化序列已成功用于稠密官能化的螺环化合物的合成(请参见方案)。通过简单的一锅法和温和的反应条件,可以高收率和高对映选择性(90-98%ee)合成螺环化合物 。