Carboxonium-ionen-reaktionen V. synthese von 1,3-oxathiolen und deren fragmentierung zu β-thia-γ,δ-enonen
作者:Jochen Mattay、Hans-Dieter Scharf
DOI:10.1016/s0040-4039(00)97528-2
日期:1982.1
1,3-Oxathioles 5 are formed in high yields upon treatment of 5-chloromethyl-1,3-oxathiolanes 3 with potassium t-butoxide in dimethyl sulfoxide at room temperature. The protoncatalyzed fragmentation of 5 leads in good yields to the new β-thia-γ,δ-enones 6.
在室温下用叔丁醇钾在二甲基亚砜中处理5-氯甲基-1,3-氧杂硫杂环戊酸酯3时,高产率地形成了1,3-氧杂硫醇5。5的质子催化断裂导致新的β-thia-γ,δ-烯酮6的高收率。