Tetrahedron Letters

Friedel–Crafts catalysts as assistants in the tritylation of less reactive hydroxyls

R Bernini, M Maltese

文献索引：Bernini, Roberta; Maltese, Maurizio Tetrahedron Letters, 2010 , vol. 51, # 31 p. 4113 - 4116

全文：HTML全文

被引用次数: 6

摘要

Less reactive hydroxyls, such as those present in secondary alcohols and in some primary alcohols, phenols and carboxylic acids, were easily tritylated with the homogeneous assistance of equimolar quantities of chlorides of di-and trivalent metals in aprotic solvents. The metal ions allowed both high concentration of the effective reagent triphenylmethylcarbenium ion and mobilisation of the hydroxyl proton, thus giving rise to ...