On July 31, 2020, Mekki, Amel; Benmaati, Aouicha; Mokhtar, Adel; Hachemaoui, Mohammed; Zaoui, Farouk; Habib Zahmani, Hadjira; Sassi, Mohamed; Hacini, Salih; Boukoussa, Bouhadjar published an article.Category: esters-buliding-blocks The title of the article was Michael Addition of 1,3-Dicarbonyl Derivatives in the Presence of Zeolite Y as an Heterogeneous Catalyst. And the article contained the following:
This paper focuses on the preparation and modification of zeolite Y by different methods. The obtained samples were characterized by X-ray diffraction, X-ray fluorescence, nitrogen adsorption-desorption and zeta potential measurements. The obtained catalysts were tested in the Michael addition reaction. Several parameters affecting the Michael reaction such as the catalyst nature, catalyst mass, solvent and to generalize the reaction several acceptors were tested. The results showed that zeolite Y had a larger sp. surface area, but their modified counterparts showed weak surfaces due to the partial destruction of zeolite framework after the different treatments. The catalytic application of zeolite Y and its modified counterparts had shown interesting results via the addition of Michael with yields between 70 and 100%. Reuse of zeolite Y in several cycles showed that this catalyst was stable during six consecutive reuse tests. The experimental process involved the reaction of Methyl 2-cyclopentanonecarboxylate(cas: 10472-24-9).Category: esters-buliding-blocks
The Article related to zeolite y catalyst preparation surface area, dicarbonyl unsaturated compound zeolite y michael addition microwave irradiation, Alicyclic Compounds: General and other aspects.Category: esters-buliding-blocks
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics