Lewis Acid??Catalyzed Intramolecular [3+ 2] Cycloaddition of Cyclopropane 1, 1??Diesters with Alkynes for the Synthesis of Cyclopenta [c] chromene Skeletons

…, XR Song, XY Liu, YM Liang

文献索引：Xia, Xiao-Feng; Song, Xian-Rong; Liu, Xue-Yuan; Liang, Yong-Min Chemistry - An Asian Journal, 2012 , vol. 7, # 7 p. 1538 - 1541

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被引用次数: 11

摘要

Polycyclic structures are found in the core of most synthetic and natural bioactive products. Highly efficient construction of polycyclic skeletons is one of the most important research topics in organic synthesis. Chromans are valuable structures in biological chemistry as well as important structural units found in many natural and artificial products such as vitamin E and its derivatives and flavonoids.[1] More specifically, cyclopenta [c] chromene, one of ...