Selective [2+2+2] Cycloaddition of Nickel-Benzyne and an Asymmetric 1,3-Diyne: An Iterative Route to Substituted [<i>n</i>]Acenes
作者:Mary S. Gin、Kimberly R. Deaton、Christopher S. Strouse
DOI:10.1055/s-2004-834894
日期:——
A new iterative route to substituted acenes is reported that centers on regioselective cycloaddition of a nickel-benzyne and 1-trimethylsilyl-1,3-pentadiyne. The five-step sequence installs two fused aromatic rings and two methyl substituents onto the backbone in 27% overall yield.