Studies in 1-Aza-1,3-butadienes: Diels-Alder Cycloaddition Reactions of 1,4-Diaryl-1-aza-1,3-butadienes with Aryl Sulphonyl Nitrosites Leading to the Synthesis of New Oxadiazines
作者:Kewal Krishan Singal、Baldev Singh、Baldev Raj
DOI:10.1080/00397919308020408
日期:1993.1
1,4-Diaryl-1-aza-1,3-butadienes (I) undergo a stereospecific 1,4-cycloaddition reaction with aryl sulphonyl nitrosites (II) generated 'in situ' by the reaction of aryl sulphinic acid and ethyl nitrite to yield six-membered cycloadducts characterized as 2-aryl sulphonyl-3,6-diaryl-2H,3H,6H-[1,2,3] oxadiazine derivatives(III) in good yield.