Enantioselective Construction of the Biologically Important Cyclopenta[1,4]diazepine Framework Enabled by Asymmetric Catalysis by Chiral Spiro-Phosphoric Acid
作者:Meng Sun、Yang Wang、Lei Yin、Yang-Yan Cao、Feng Shi
DOI:10.1002/ejoc.201501255
日期:2015.12
highest catalytic activity on controlling the enantioselectivity of the three-component tandem reaction. This reaction represents the first catalytic asymmetric construction of chiral cyclopenta[1,4]diazepine frameworks with structural diversity. The approach also constitutes the first systematic investigation on this catalytic asymmetric three-component reaction, which will enrich the fields of both organocatalysis
已经通过使用环戊烷的三组分串联反应建立了一种手性螺-磷酸催化的不对称方法,用于构建具有高对映选择性(高达 98:2 er)的具有生物学意义的环戊烷 [1,4] 二氮杂支架- 1,3-二酮、1,2-苯二胺和靛红在温和的反应条件下。在一系列手性磷酸中,螺磷酸在控制三组分串联反应的对映选择性方面表现出最高的催化活性。该反应代表了具有结构多样性的手性环戊二氮杂[1,4]二氮杂骨架的首次催化不对称构建。该方法还构成了对这种催化不对称三组分反应的首次系统研究,