作者:Jeremy Robertson、Donald S Middleton、Garry O'Connor、Tsarina Sardharwala
DOI:10.1016/s0040-4039(97)01818-2
日期:1998.2
Oxasilacyclopentanes 3, generated by either free-radical cyclisation, intramolecular hydrosilylation, or silicon tethered Diels-Alder reaction, may be efficiently opened with 2-propenyl-lithium and the product alcohols oxidised to prepare precursors 2 for silicontethered ene cyclisation. Efficient and highly stereoselective ene reactions have been achieved with these precursors.
通过自由基环化,分子内氢化硅烷化或硅系留的狄尔斯-阿尔德反应而产生的草酰环戊烷3可以用2-丙烯基-锂有效地打开,并且氧化产物醇以制备用于硅系链烯环化的前体2。这些前体已经实现了高效且高度立体选择性的烯反应。