Benzannulation via Ruthenium-Catalyzed Diol–Diene [4+2] Cycloaddition: One- and Two-Directional Syntheses of Fluoranthenes and Acenes
作者:Laina M. Geary、Te-Yu Chen、T. Patrick Montgomery、Michael J. Krische
DOI:10.1021/ja502659t
日期:2014.4.23
A new benzannulation protocol is described and applied to the synthesis of polycyclic aromatic hydrocarbons. Ruthenium(0)-catalyzed diol-diene [4+2] cycloaddition delivers cyclohex-1-ene-4,5-diols, which are subject to aromatization upon dehydration or Nicholas diol deoxydehydration. Employing diol and tetraol reactants, benzannulation can be conducted efficiently in one- and two-directional modes