The present study provides insights into the manner in which the configuration of β‐aminoallene precursors affects their gold‐catalyzed cyclization reactions. The reactivity can be switched by using indolizidinone‐tethered β‐aminoallenes bearing the syn‐ or the anti‐disposition of both protons at the α‐ and β‐allenic stereocenters. Fused heterocycles (seven examples, 60–75% yields) are obtained from
本研究提供了对β-
氨基
丙二烯前体构型影响其
金催化环化反应的方式的见解。的反应性可以通过使用indolizidinone拴β-aminoallenes轴承被切换顺式或-反两个质子的在α-和β-
丙二烯立体-disposition。稠合的杂环(7个实施例,60-75%产率)从所获得的顺式-precursors,而二聚化aminoketalization-螺环化序列,得到苯并[ b ]
吡咯并[3,2,1- IJ ] [1,7]
萘啶从其反异构体开始可以达到-1个(四个示例,产率为34-48%)。