Chiral saturated oxygen heterocycles are important components of bioactive compounds. Cyclization of alcohols onto pendant alkenes is a direct route to their synthesis, but few catalytic enantioselective methods enabling cyclization onto unactivated alkenes exist. Herein reported is a highly efficient copper‐catalyzed cyclization of γ‐unsaturated pentenols which terminates in CC bond formation, a
手性饱和氧杂环是
生物活性化合物的重要组成部分。醇在侧链烯烃上的环化是其合成的直接途径,但很少有催化对映选择性方法能够环化到未活化的烯烃上。本文报道了一种高效的
铜催化 γ-不饱和
戊烯醇环化反应,其终止于形成C C 键,这是一种净烯烃碳醚化。证明了分子内和分子间 C C 键的形成,从而产生功能化的手性
四氢呋喃以及稠环和桥环氧杂双环产物。过渡态计算支持顺式
氧化铜立体
化学测定步骤。