Enantioselective Organocatalytic Addition of Nitroalkanes to Oxindolylideneindolenines for the Construction of Chiral 3,3-Disubstituted Oxindoles
作者:Jian-Zhou Huang、Xiang Wu、Liu-Zhu Gong
DOI:10.1002/adsc.201300373
日期:2013.9.16
An enantioselective organocatalytic addition of nitroalkanes to oxindolylideneindolenines in the presence of bifunctional organocatalysts has been established to provide an efficient entry to 3,3‐disubstituted oxindole derivatives in high yields and with excellent enantioselectivities. The transformation has been applied to the preparation of the key intermediate for a formal total synthesis of (+)‐gliocladin
已经建立了在双官能有机催化剂存在下将硝基烷烃向对二甲苯亚甲基吲哚中进行对映选择性有机催化加成反应,从而以高收率和优异的对映选择性有效地进入3,3-二取代的羟吲哚衍生物的方法。该转化已应用于制备正式的(+)-gliocladin C正式合成所需的关键中间体。