
Tetrahedron (2021)
Update date:2022-07-29
Topics:
Zhao, Wei-Cheng
Wang, Xin
Feng, Juhua
Tian, Ping
He, Zhi-Tao
A novel and straightforward palladium-catalyzed desymmetric [2+2+2] cycloaddition reaction of alkyne-tethered cyclohexadienone and internal alkyne is established. Widely existing fused tricyclic hydronaphthofuran and hydronaphthopyrrole frameworks are prepared diastereoselectively in moderate to excellent yields. One-step aromatization process provides a new and facile access to important benzene-containing tricycles from above cycloaddition products.
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Doi:10.1039/c8sc04892d
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