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Alkylation-Terminated Catellani Reactions Using Alkyl Carbagermatranes
Wei-Tao Jiang1, Meng-Yu Xu1, Shuo Yang1
1Department of Chemistry, University of Science and Technology of China, Hefei, 230026, China.
Abstract:
The Catellani reaction has received substantial attention because it enables rapid multiple derivatization on aromatics. While using alkyl electrophiles to achieve ortho-alkylation was one of the earliest applications of the Catellani reaction, ipso-alkylation-terminated reactions with β-H-containing reactants has not been realized to date. Herein, we report alkylation-terminated Catellani reaction using alkyl carbagermatranes (abbreviated as alkyl-Ge) as nucleophiles. The reactivity of alkyl-Ge and alkyl-B(OH)2 in this reaction is discussed. This approach enables efficient dialkylation with β-H-containing reactants, which was previously inaccessible by Catellani reactions.
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