An efficient and thermally induced reaction of diazoamide with isatin under mild reaction conditions is described, which provides a complementary approach to the 3,3′-bioxindole in high yields with excellent diastereoselectivity. In comparison to the metal-catalyzed versions, this is the only example under catalyst-free conditions via a non-carbene reaction pathway.
描述了在温和的反应条件下重氮酰胺与
靛红的高效热诱导反应,它为3,3'-bioxindole以高收率和非对映选择性提供了一种补充方法。与
金属催化的版本相比,这是在无催化剂条件下通过非卡宾反应途径的唯一例子。