p-Sulfonic acid calix[n]arenes as homogeneous and recyclable organocatalysts for esterification reactions

TETRAHEDRON LETTERS

卷:53

Article

Fernandes, Sergio Antonio¹  Natalino, Ricardo¹  Rodrigues, Poliana Aparecida¹  Jose da Silva, Gazolla Marcio¹  Jham, Gulab Newandram¹ 

[1] Univ Fed Vicosa, Dept Quim, Grp Quim Supramol & Biomimet GQSB, CCE, Vicosa, MG, Brazil

关键词: Esterification reaction;    p-Sulfonic acid calix[n]arene;    Organocatalyst;    Catalyst recovery;   

DOI  :  10.1016/j.tetlet.2012.01.078

来源: Elsevier

【 摘 要 】

Esterification yields were significantly improved using calix[n]arenes catalysts under simple conditions. p-Sulfonic acid calix[4]arene and p-sulfonic acid calix[6]arene were powerful organocatalysts in several esterification reactions, which showed activity comparable or even superior to other well-established acids catalysts, such as, sulfuric acid, p-toluenesulfonic acid, and p-hydroxybezenesulfonic acid described in the literature. (C) 2012 Elsevier Ltd. All rights reserved.

【 授权许可】

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