An Efficient Synthesis of Symmetrical Bisamides Catalysed by Molecular iodine under Neutral Conditions
作者:Hongshe Wang、June Zeng
DOI:10.3184/174751912x13383107316656
日期:2012.8
An efficient synthesis of symmetrical bisamides is described in which aldehydes are reacted with amides in the presence of 5 mol% of iodine to give the corresponding bisamides in high yields under neutral conditions.
<i>p</i>-Toluene Sulfonic Acid–Catalyzed, Solvent-Free Synthesis of Symmetrical Bisamides by Reaction Between Aldehydes and Amides
作者:Mohammad Anary-Abbasinejad、Mohammad H. Mosslemin、Alireza Hassanabadi、Safiyeh Tajik Safa
DOI:10.1080/00397910903219617
日期:2010.7.12
Reaction between aldehydes and amides catalyzed by p-toluene sulfonic acid in solvent-free conditions provided a simple and efficient one-pot route for the synthesis of symmetrical bisamide derivatives in excellent yields.
Abstract Silica-bonded S-sulfonic acid nanoparticles (SBSSANPs) were easily synthesized from silica nanoparticles and showed to be an efficient catalyst in the synthesis the symmetrical N,N′-alkylidene bisamides. Reaction of aldehydes and amides in the presence of the catalyst afforded the corresponding bisamides in good to excellent yields. The extensive range of substrates suggests general applicability
ABSTRACT Efficient synthesis of symmetrical bisamides is achieved by hydroxyapatite catalyst. Hydroxyapatite catalyzes the reaction between aldehydes and amides to afford bisamides at reflux conditions in 87–95% yields in acetonitrile medium. The catalyst is readily recovered and reused at least three times without loss in its catalytic activity. This method is noteworthy that, symmetrical bisamides are
The action of thiophenol on bisamides and bisurethanes of some unsaturated aromatic and heterocyclic aldehydes, under irradiation with UV light, results in the addition of thiophenol to the double bond and formation of the corresponding bisamides and bisurethanes of β-phenyl-mercaptoaldehydes.