PdII/IV catalyzed oxidative cyclization of 1,6-enynes derived by Ugi-4-component reaction
作者:Sebastian J. Welsch、Michael Umkehrer、Günther Ross、Jürgen Kolb、Christoph Burdack、Ludger A. Wessjohann
DOI:10.1016/j.tetlet.2011.09.094
日期:2011.11
A variety of 1,6-enynes were synthesized by an Ugi-reaction and further elaborated by a PdII/IV catalyzed oxidative cyclization to produce N-substituted 3-aza-bicyclo[3.1.0]hexan-2-ones. Different substitution patterns were tested to examine the scope and limitations of the amide tethered substrates.
通过Ugi反应合成了各种1,6-烯炔,并通过Pd II / IV催化的氧化环化反应进一步精制,以产生N-取代的3-氮杂-双氮杂双环[3.1.0]己-2-烯。测试了不同的取代模式以检查酰胺束缚底物的范围和局限性。