Here we reported our strategy by combining the transition metal‐catalyzed diversified cycloisomerization of 1,6‐enynes with chiral Lewis acid‐promoted asymmetric Diels‐Alder sequence reaction, realizing the asymmetric different cycloisomerization/Diels‐Alder relay reactions of 1,6‐enynes with electron deficient alkenes. A broad spectrum of chiral [5,6]‐bicyclic products could be acquired in high yields (up to 99%) with excellent diastereoselectivies (> 19:1 dr) and enantioselectivities (up to 99% ee).
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Medicine by Alexandros G. Sfakianakis,Anapafseos 5 Agios Nikolaos 72100 Crete Greece,00302841026182,00306932607174,alsfakia@gmail.com,