developed and used as recyclablecatalysts for the aza-Michael addition at room temperature without any organic solvent. [DABCO–PDO][OAc] was found to be the most efficientcatalyst, and the amount of catalyst was only 10 mol %. Various amines reacted with a wide range of α,β-unsaturated amides, smoothly affording target products in good to excellent yields within hours. Moreover, the catalyst could be reused
Ionic tagged DABCO grafted on magnetic nanoparticles: a water-compatible catalyst for the aqueous aza-Michael addition of amines to α,β-unsaturated amides
acrylique: C7H11ON E14 115° = 1,4990 = 1,030 La meilleure methode de synthese au laboratoire consiste a traiter le chlorure d'acroyle par l'amine en presence de triethylamine, en solution dans le benzene ou le toluene a une temperature inferieure B 10°. Ces monomeres reagissent des la temperature ordinaire sur les amines cycliques en donnant des combinaisons saturees.Text Table Text. β Morpholino-propionyl-morpholide
Nous avons 准备 les acrylamides deformule generale suivante:文本表文本。A = CH2:哌啶丙烯酸:C8H13ON E15 114°n20D = 1,5060d204 = 1,023 A = 0:吗啉丙烯酸:C7H11O2N E16 135° = 1,5080 = 1, 114°n20D = 1,5060d204 = 1,023 1,165 Pyrrolidide acrylique: C7H11ON E14 115° = 1,4990 = 1,030 La meilleure methode de synthese au labourtoire contains a traiter le chlorure d'acroyle par l'amine en present de triethylamine, en solution dans
Understanding water mediated proton migration in conversion of π-bond in olefinic carbon atoms into C–N bond to form β-amino adducts
作者:Prakash B. Rathod、K.S. Ajish Kumar、Anjali A. Athawale、Gopinadhanpillai Gopakumar、C.V.S. Brahmmananda Rao、Ashok K. Pandey
DOI:10.1016/j.tet.2021.132482
日期:2021.11
Effect of Counterion Structure on Rates and Diastereoselectivities in α,β-Unsaturated Iminium-Ion Diels–Alder Reactions
作者:David Marcoux、Pascal Bindschädler、Alexander W. H. Speed、Anna Chiu、Joseph E. Pero、George A. Borg、David A. Evans
DOI:10.1021/ol201448h
日期:2011.7.15
The use of cyclic α,β-unsaturated iminium-ion dienophiles is documented in two highly diastereoselective Diels–Alder (DA) reactions. The dienophilic counterion was found to have a significant effect on reactivity.