A novel synthesis of 3-methylcholanthrene is described which is operationally sipmler than the method in current use and is potentially applicable to the synthesis ofa wide range of other polycyclic hydrocarbons and their cracinogenic metabolites.
Aldimine-Directed Branched-Selective Hydroarylation of Styrenes
作者:Pin-Sheng Lee、Naohiko Yoshikai
DOI:10.1002/anie.201207958
日期:2013.1.21
Branching out: A simple and inexpensive cobalt/triarylphosphine catalyst promotes aldimine‐directed hydroarylation of styrene with high branched regioselectivity to afford 1,1‐diarylethane derivatives in good yields under mild reaction conditions. The ortho‐formyl group in the hydroarylation products is amenable to dehydrative cyclization, to give fused polycyclic aromatic hydrocarbons, as well as