Construction of Monocyclic Eight-Membered Rings: Intermolecular Rhodium(I)-Catalyzed [6+2] Cycloaddition of 4-Allenals with Alkynes
作者:Yoshihiro Oonishi、Akihito Hosotani、Yoshihiro Sato
DOI:10.1002/anie.201206508
日期:2012.11.12
Rounding up: A RhI‐catalyzed intermolecular cycloaddition of 4‐allenals with alkynes has been developed that provides various monocyclic eight‐membered rings in good to high yields in a stereoselective manner (see scheme). In addition, the chirality of the starting allene is transferred in this reaction, thereby giving optically active monocyclic eight‐membered ring compounds.
舍入:一个铑我催化的4- allenals与炔烃环加成间已经开发了提供以立体选择性的方式以良好至高产率各种单环八元环(参见方案)。另外,起始丙二烯的手性在该反应中转移,从而得到光学活性的单环八元环化合物。