Synthesis of Biarylsvia Palladium-Catalyzed [2+2+2] Cocyclization of Arynes and Diynes: Application to the Synthesis of Arylnaphthalene Lignans
作者:Yoshihiro Sato、Takayuki Tamura、Atsushi Kinbara、Miwako Mori
DOI:10.1002/adsc.200600587
日期:2007.3.5
palladium(0)-catalyzed [2+2+2] cocyclization of diynes and arynes was developed. By this [2+2+2] cocyclization, various arylnaphthalene derivatives, including a stericallyhindered 2,2′-disubstituted-1,1′-binaphthyl, can be constructed by virtue of a variety of combinations of diynes and aryne precursors. Using this [2+2+2] cocyclization as a key step, the total syntheses of natural arylnaphthalene lignans, taiwanin