- Friedel–Crafts Alkylation with Carbenium Ions Generated by Electrochemical Oxidation of Stannylmethyl Ethers
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The electrochemical activation of stannylmethyl ethers was exploited for Friedel–Crafts alkylation of arenes at near-neutral conditions. Single cell anodic oxidation of stannylmethyl ethers leads to oxonium ions which fragment to carbenium ions in the pre
- Jirgensons, Aigars,Lielpetere, Anna
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- Are Radicals Intermediates in Nucleophilic Substitution Reactions of Trityl Halides with Potassium t-Butoxide ?
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The reaction of trityl bromide (2) with potassium t-butoxide in THF furnished in our hands in addition to the substitution products (4) and (10) , compounds (8) and (9) as well as trimeric and oligomeric fractions.The formation of the non-substitution products requires the intermediacy of trityl radicals.Therefore, the suggestion, found in the literature and based solely on the detection of trityl radicals in the reaction mixtures, that substitution products (3) and (4) are formed by the SET mechanism, does not appear to be well founded.
- Hszthy, Peter,Lemport, Karoly,Simig, Gyula,Tamas, Jozsef
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p. 3419 - 3430
(2007/10/02)
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