Research School of Chemistry, Institute of Advanced Studies, The Australian National University, Canberra ACT 0200, Australia.
Org Lett. 2013 Jun 7;15(11):2616-9. doi: 10.1021/ol4007986. Epub 2013 May 21.
Treatment of readily available o-(buta-1,3-diyn-1-yl-)-substituted N-aryl ureas such as 1 with the Au(I)-catalyst 11 affords, via a twofold cyclization process, the isomeric pyrimido[1,6-a]indol-1(2H)-one 3 in good yield.
易于获得的 o-(1-丁炔-3-基)-取代的 N-芳基脲如 1 与金(I)催化剂 11 反应,通过双重环化过程,以良好的收率得到异构的嘧啶并[1,6-a]吲哚-1(2H)-酮 3。