Rhodium(III)-Catalyzed [2+2+2] Cyclotrimerization of Diynes with Maleic Anhydrides as Alkyne Equivalents
作者:Takanori Matsuda、Kentaro Suzuki
DOI:10.1002/ejoc.201500252
日期:2015.5
anhydrides function as synthetic equivalents of alkynes in a rhodium(III)-catalyzed reaction with 1,6-diynes to achieve a formal [2+2+2] cyclotrimerization. This approach is useful for reactions involving alkynes with low boiling points or severe ring strain. Hard-to-access [2+2+2] cycloadducts are available through this new cycloaddition strategy by employing easy-to-handle alkyne equivalents.
取代的马来酸酐在铑 (III) 催化与 1,6-二炔的反应中用作炔烃的合成等价物,以实现正式的 [2+2+2] 环三聚反应。这种方法对于涉及低沸点或严重环应变的炔烃的反应很有用。通过采用易于处理的炔烃等价物,通过这种新的环加成策略可以获得难以获得的 [2+2+2] 环加合物。