Trimethylsilyloxide-Catalysed Peterson Olefinations with 2,2-Bis(trimethylsilyl)-1,3-dithiane
作者:Atul Manvar、Donal F. O'Shea
DOI:10.1002/ejoc.201501185
日期:2015.11
The synthesis of the reagent 2,2-bis(trimethylsilyl)-1,3-dithiane was directly achieved in an excellent yield from1,3-dithiane in one step. The bench-stable reagent can be utilized for Peterson olefinations using either TMSOK/Bu4NCl or fluoride ion as promoter of α-silyl carbanion formation, thereby generating ketenedithioacetals, which are versatile intermediates in organic synthesis. Olefination