O ácido bórico foi usado neste trabalho como um catalisador "verde", seletivo e reciclável, para a trimetilsililação de álcoois e fenóis usando hexametildissilazano em acetonitrila. A desproteção de trimetilsililéteres para regenerar seus alcoóis e fenóis precursores foi também realizada usando este catalisador em água à temperatura ambiente. As características de destaque desta metodologia são o baixo custo do processo, as condições brandas de acidez, os rendimentos excelentes e a disponibilidade ampla do catalisador.Boric acid has been used as a green, selective and recyclable catalyst for trimethysilylation of alcohols and phenols using hexamethyldisilazane in acetonitrile. Deprotection of trimethylsilyl ethers to their parent alcohols and phenols was also achieved using this catalyst in water at room temperature. The salient features of this methodology are cheap processing, mild acidity conditions, excellent yields of products and easy availability of the catalyst.
A Highly Efficient, Green, Rapid, and Chemoselective Oxidation of Sulfides Using Hydrogen Peroxide and Boric Acid as the Catalyst under Solvent-Free Conditions. -Sulfides possessing functional groups like alcohol, aldehyde and ester are selectively oxidized to sulfoxides or sulfones. -(ROSTAMI*, A.; AKRADI, J.; Tetrahedron Lett. 51 (2010) 27, 3501-3503,
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