Esters as Acylating Reagent in a Friedel−Crafts Reaction: Indium Tribromide Catalyzed Acylation of Arenes Using Dimethylchlorosilane
作者:Yoshihiro Nishimoto、Srinivasarao Arulananda Babu、Makoto Yasuda、Akio Baba
DOI:10.1021/jo801914x
日期:2008.12.5
The Friedel-Craftsacylation of arenes with esters by dimethylchlorosilane and 10 mol % of indium tribromide has been achieved. The key intermediate RCOOSi(Cl)Me(2) is generated from alkoxy esters with the evolution of the corresponding alkanes. The scope of the alkoxy ester moiety was wide: tert-butyl, benzyl, allyl, and isopropyl esters were successful. In addition, we demonstrated the direct synthesis
MoO2Cl2 as a novel catalyst for Friedel–Crafts acylation and sulfonylation
作者:Rita G. de Noronha、Ana C. Fernandes、Carlos C. Romão
DOI:10.1016/j.tetlet.2009.01.039
日期:2009.4
The use of MoO2Cl2 as a novel catalyst for Friedel–Craftsacylation and sulfonylation is described. A series of aromatic ketones and sulfones were prepared in moderate to good yields using acyl chloride or sulfonyl chloride in the presence of MoO2Cl2 (20 mol %), under solvent-free conditions.
[EN] ARYL GLUCOSIDE DERIVATIVE AND USE THEREOF IN DRUG<br/>[FR] DÉRIVÉ D'ARYLGLUCOSIDE ET SON UTILISATION DANS UN MÉDICAMENT<br/>[ZH] 芳基葡糖苷衍生物及其在药物中的用途