Studies on diels-alder cycloadditions of vinylketene dithioacetals
作者:Arun K. Gupta、Hirlyakkanavar Ila、Hiriyakkanavar Junjappa
DOI:10.1016/0040-4020(89)80149-8
日期:1989.1
The Diels-Alder cycloadditions of the acyclic and cyclic vinylketene dithloacetals prepared from the corresponding oxoketene dithioacetals either by 1,2-addition of methylmagnesium iodide and subsequent dehydration or by Wlttig reaction, were studied. Thus and underwent facile [4+2] cycloaddition with maleic anhydride followed by elimination of methylmercaptan and subsequent aromatization through dehydrogenation