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An efficient synthesis of fused tricycles with a benzene core via intramolecular double ring-closing enyne metathesis
Liang, Zhiqiang,Ma, Shengming,Yu, Jihong,Xu, Ruren
, p. 977 - 985 (2007/10/03)
A double enyne metathesis reaction has been developed for the efficient synthesis of tricyclic products with a benzene core in good yields. By this protocol, bisannulated benzenes with different ring sizes may be simultaneously constructed from the corres