Heteroannulation through copper catalysis: a novel cyclisation leading to an unusual formation of 2-aroylquinoxalines
作者: Rupa MukhopadhyayNitya G Kundu
作者单位: 1Department of Organic Chemistry, Indian Association for the Cultivation of Science, Jadavpur, Calcutta 700032, India
刊名: Tetrahedron Letters, 2000, Vol.41 (50), pp.9927-9930
来源数据库: Elsevier Journal
DOI: 10.1016/S0040-4039(00)01766-4
关键词: copper catalysisquinoxalines
原始语种摘要: Abstract(#br)N -[(3′-Aryl)prop-2′-ynyl]- N , N ′-1,2-phenylene di- p -tosylamides, 15 – 22 , underwent an unusual ring closure with potassium carbonate (2 equiv.) and copper(I) iodide (10 mol%) in DMF at 100°C for 24 h to yield 2-aroylquinoxalines ( 23 – 30 ) instead of the expected 2-alkylidene-1,4-di-tosyl-1,2,3,4-tetrahydroquinoxalines ( 31 ).
全文获取路径: Elsevier  (合作)
影响因子:2.397 (2012)