作者:Toshiki Tabuchi、Daisuke Urabe、Masayuki Inoue
DOI:10.3762/bjoc.9.74
日期:——
The stereoselective Diels-Alder reaction between an optically active 1,4-dimethylcycloheptadiene and acrolein was effectively promoted by TBSOTf to produce a bicyclo[3.2.2]nonene derivative bearing two quaternary carbons. Seven additional transformations from the obtained bicycle delivered the C 2-symmetric bicyclo[3.3.2]decene derivative, a key intermediate in our synthetic study of ryanodine.
TBSOTf 有效地促进了光学活性 1,4-二甲基环庚二烯和丙烯醛之间的立体选择性 Diels-Alder 反应,以产生带有两个季碳的双环 [3.2.2] 壬烯衍生物。来自获得的自行车的另外七次转化产生了 C 2 对称双环 [3.3.2] 癸烯衍生物,这是我们合成蓝尼定的关键中间体。