suitable candidate for catalytic cycles in certain processes. Endowed with a higher redox potential than its radical anion counterpart, dilithiumnaphthalene displays a broader spectrum of reactivity and so increases the range of substrates suitable for lithiation. The reaction of dilithiumnaphthalene with THF is one example of the divergent reactivity of the radical anion and the dianion, which has been
New Modes of Reactivity in the Threshold of the Reduction Potential in Solution. Alkylation of Lithium PAH (Polycyclic Aromatic Hydrocarbon) Dianions by Primary Fluoroalkanes: A Reaction Pathway Complementing the Classical Birch Reductive Alkylation
作者:Cristóbal Melero、Raquel P. Herrera、Albert Guijarro、Miguel Yus
DOI:10.1002/chem.200700187
日期:2007.12.17
Some of the most highlyreducedorganicspecies in solution, such as the dianions of PAHs (polycyclic aromatic hydrocarbons) display unexpected reactivity patterns when they react with an appropriate counterpart. As seen before in their reaction with propene and other alkenes, PAHs(-2) apparently react with fluoroalkanes in a nucleophilic fashion in spite of being generally regarded as powerful electron-transfer