The first enantioselective total synthesis of tonantzitlolone, a novel 15-membered macrocyclic diterpene, utilized a Julia olefination, a highly selective, potassium enolate-based anti-Felkin aldol reaction, and an E-selective ring-closing metathesis as key C-C bond-forming steps. The absolute configuration of tonantzitlolone is established.
[结构:参见正文]苯并二氢
噻酮的首次对映选择性全合成是一种新型的15元大环二萜,它利用Julia烯化反应,高选择性,基于烯醇
钾的抗Felkin醛醇缩合反应和E选择性闭环复分解反应作为关键的CC债券形成步骤。建立了坦西洛龙的绝对构型。