Gold(I) Catalysis: Selective Synthesis of Six- or Seven-Membered Heterocycles from Epoxy Alkynes
作者:Lun-Zhi Dai、Min Shi
DOI:10.1002/ejoc.200900210
日期:2009.7
ketone-substituted epoxides with alkynes to six- or seven-membered heterocyclic compounds is firstly introduced in this paper. This procedure involves a cascade isomerization of the ketone-substituted epoxides into 1,3-diketones in the presence of a Lewis acid and subsequent gold(I)-catalyzed selective intramolecular addition of an oxygen or a carbon nucleophile to the alkynes. (© Wiley-VCH Verlag GmbH &
本文首次介绍了金(I)催化的酮取代环氧化物与炔烃的分子内环异构化为六元或七元杂环化合物。该过程涉及在路易斯酸的存在下将酮取代的环氧化物级联异构化为 1,3-二酮,随后金 (I) 催化选择性分子内添加氧或碳亲核试剂到炔烃。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)