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Electron propagator molecular resonances

The mechanism is believed to begin by SET from the base to the aryl iodide to form a radical anion. Inter-molecular reaction can occnr through a HAS, the radical variant of the more commonly known EAS reaction. For intermolecular reaction, addition of the radical to the coupling partner resnlts in a resonance-stabilized radical. Deprotonation with base forms a biaryl radical anion which propagates the mechanism by donating an electron to another aryl haUde. For intra-molecular reaction, the aryl radical likely adds to the ipso position of the tether. Subsequent ring expansion and re-aromatization yields the prodnct. ... [Pg.39]

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See also in sourсe #XX -- [ Pg.242 ]



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