作者:Gorad, Sachin S.、Ghorai, Prasanta
DOI:10.1021/acs.orglett.4c01988
日期:——
their asymmetric catalytic genre remains unattempted. Herein, we describe the judicious design of an organocatalytic enantioselective desymmetric double aza-Michael addition cascade to access a series of functionalized fused morpholines with excellent yields and diastereo- and enantioselectivities. A one-pot telescopic synthesis was demonstrated for a bridged triheterocyclic compound. In addition, scale-up
双氮杂迈克尔加成(DAM)已成为一步构建两个碳氮键的新兴策略,可以显着简化N-杂环的合成。迄今为止,他们的不对称催化类型仍未尝试过。在此,我们描述了有机催化对映选择性不对称双氮杂迈克尔加成级联的明智设计,以获得一系列具有优异产率和非对映选择性和对映选择性的官能化稠合吗啉。演示了桥联三杂环化合物的一锅式伸缩合成。此外,标题产品的放大合成和各种有吸引力的合成后修饰增强了当前方法的重要性。