A Regioselective and High-Yielding Method for Formaldehyde Inclusion in the 3CC Groebke-Blackburn-Bienaymé Reaction: One-Step Access to 3-Aminoimidazoazines
作者:Hong-yu Li、Anuj Sharma
DOI:10.1055/s-0030-1260568
日期:2011.6
A regioselective, mild, convenient, and effective condition is developed for the inclusion of glyoxylic acid as formaldehyde equivalent in the 3CC reaction towards synthesis of 3-aminoalkyl imidazo-azines. In general, formaldehydes do not perform well with Ugi-type multicomponent sequences, and the method reported here is a regioselective and high-yielding one for the HCHO variant of Groebke-Blackburn-Bienaymé reaction.
开发了一种区域选择性、温和、方便且有效的条件,用于在3CC反应中将乙醛酸作为甲醛等效物纳入,以合成3-氨基烷基咪唑类杂环化合物。一般而言,甲醛在Ugi型多组分反应中表现不佳,而此处报道的方法则是一种区域选择性高且产率高的Groebke-Blackburn-Bienaymé反应的HCHO变体。