acylzirconocene chlorides react as “unmasked” acyl anion donors, was carried out under Yb(OTf)3/TMSOTf-catalyzed conditions. The same reactions were also carried out with the use of Bronsted acids as catalyst in place of Yb(OTf)3/TMSOTf. The operationally simple three-component reaction with aldehydes, anilines, and acylzirconocene chlorides affords α-amino ketone derivatives essentially in the absence of a catalyst
在 Yb(OTf)3/TMSOTf 催化条件下,通过用 N-亚苄基
苯胺衍
生物处理酰基
二茂铁直接制备 α-
氨基酮衍
生物,其中酰基
二茂铁作为“未掩蔽的”酰基阴离子供体反应。使用布朗斯台德酸作为催化剂代替 Yb(OTf)3/TMSOTf 也进行了相同的反应。与醛、
苯胺和酰基茂
氯化物的操作简单的三组分反应基本上在没有催化剂的情况下提供了 α-
氨基酮衍
生物。(© Wiley-
VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)