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  • Title: Lewis acid-catalyzed synthesis of silafluorene derivatives from biphenyls and dihydrosilanes via a double sila-Friedel-Crafts reaction.
    Author: Dong Y, Takata Y, Yoshigoe Y, Sekine K, Kuninobu Y.
    Journal: Chem Commun (Camb); 2019 Oct 31; 55(88):13303-13306. PubMed ID: 31626267.
    Abstract:
    The synthesis of silafluorene derivatives from aminobiphenyl compounds and dihydrosilanes via a double sila-Friedel-Crafts reaction using a borane catalyst has been achieved. This method is applicable to the synthesis of a variety of silafluorene derivatives, such as multisubstituted silafluorenes, spirosilabifluorenes, and silicon-bridged terphenyl compounds, which are not readily obtained using conventional synthetic methods. In addition, we have demonstrated the transformation of the amino groups in these silafluorene derivatives into other substituents.
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