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本文报道了通过以高序铜代替低序铜对炔酸酯加成得到的取代(α-乙酯基乙烯基)铜与端基或环状环氧化合物的立体选择性反应,较高产率的合成α,β-取代烯酯,进而可合成α-亚烷基-γ-丁内酯类衍生物。
This paper reports the stereoselective reaction of substituted (α-carbethoxyethenyl) copper with terminal or cyclic epoxides by substitution of high-order copper for the low-order copper for the alkynoate and the higher yield Synthesis of α, β-substituted enoester, which can be synthesized α-alkylene-γ-butyrolactone derivatives.