The Meinwald reaction of alkyl propionates. Synthesis of the C1–C9 fragment of aurisides
作者:Marı́a-Yolanda Rı́os、Francisco Velázquez、Horacio F Olivo
DOI:10.1016/s0040-4020(03)01064-0
日期:2003.8
The C1–C9 northern fragment of aurisides 12a was prepared in eight steps and 41% overall yield starting from Grieco's bicyclic lactone (+)-4. The synthesis features a key stereoselective Meinwald reaction of the lithium enolate of alkyl propionate with the functionalized δ-lactone 3.
从Grieco的双环内酯(+)- 4开始,八步制备C1-C9北方苷12a的片段,总产率为41%。该合成的特征在于丙酸烷基酯的烯醇锂与官能化的δ-内酯3的关键立体选择性Meinwald反应。