A Mild and Efficient Method for the Synthesis of Acylals from Aromatic Aldehydes and Their Deprotections Catalyzed by Synthetic Phosphates under Solvent-Free Conditions  

作　　者：Fathallaah Bazi Bahija Mounir Mohammed Hamza Said Sebti 

机构地区：[1]Laboratoire de Chimie Analytique et physicochimie des Matériaux, Université Hassan II, Faculté des Sciences Ben M’Sik, Casablanca, Morocco [2]Laboratoire Matériaux, Substances Naturelles, Environnement & Modélisation (LMSNEM), Université Sidi Mohamed Ben Abdellah Fes, Faculté Polydisciplinaire, Taza, Morocco [3]Laboratoire de Chimie Physique Catalyse et Environnement, Université Hassan II, Faculté des Sciences Ben M’Sik, Casablanca, Morocco

出　　处：《Green and Sustainable Chemistry》2018年第4期334-344,共11页绿色与可持续化学（英文）

摘　　要：An efficient and clean preparation of acylals from aromatic aldehydes in the presence of synthetic phosphates (flourapatite and hydroxyapatite doped with ZnCl2 and ZnBr2) and acetic anhydride was achieved easily in high yields (86% - 97%) at room temperature under solvent-free conditions. Deprotection of the resulting acylals has also been attained by using the same catalysts under microwave irradiation. This method consistently has advantage of excellent yields (82% - 96%) and a short reaction time (3 - 4 min).An efficient and clean preparation of acylals from aromatic aldehydes in the presence of synthetic phosphates (flourapatite and hydroxyapatite doped with ZnCl2 and ZnBr2) and acetic anhydride was achieved easily in high yields (86% - 97%) at room temperature under solvent-free conditions. Deprotection of the resulting acylals has also been attained by using the same catalysts under microwave irradiation. This method consistently has advantage of excellent yields (82% - 96%) and a short reaction time (3 - 4 min).

关 键 词：SYNTHETIC PHOSPHATES Clean Process ACYLALS Protection DEPROTECTION 

分 类 号：O6[理学—化学]