Takacs James M, Leonov Alexei P
Department of Chemistry, University of Nebraska-Lincoln, Lincoln, Nebraska 68588-0304, USA.
Org Lett. 2003 Nov 13;5(23):4317-20. doi: 10.1021/ol035569u.
[reaction: see text] In contrast to alkyl-substituted bisdienes, aryl-substituted substrates undergo surprisingly facile palladium-catalyzed carbocyclization via a novel [3 + 2] cycloaddition mode.
[反应:见正文] 与烷基取代的双烯不同,芳基取代的底物通过一种新型的[3 + 2]环加成模式,能以惊人的容易程度发生钯催化的碳环化反应。