Intelligence Way from Eco-friendly Synthesis Strategy of New Heterocyclic Pyrazolic Carboxylic a-Amino Esters

查看全文 作　　者：EI Houssine [1,2]MABROUK;Nadia [2]ARROUSSE;Adil [3]KORCHI;Mohammed [1]LACHGAR;Ahmad [1]OUBAIR;Abdelrhani [4]ELACHQAR;Mohamed [5]JABHA;Mohammed [2]LACHKAR;Fadoua El [2]HAJJAJI;Zakia [2]RAIS;Mustapha [2]TALEB 机构地区：[1]Laboratory of Materials Engineering for the Environment&Natural Resources,Department of Chemistry,Faculty of Sciences and Technics,BP 509 Boutalamine,Errachidia,Moulay Ismail University Meknes,Morocco;[2]Laboratory of Engineering,Organometallic,Molecular and Environment(LlMMOME),Faculty of Sciences,University Sidi Mohamed Ben Abdellah,B.P.1796,Fez,Morocco;[3]Faculty of Sciences and Technologies,University Sidi Mohamed Ben Abdellah,Fez,Morocco;[4]Department of Chemistry,Faculty of Sciences Dhar El Mahraz,University Sidi Mohamed Ben Abdellah,B.P.1796,Fez,Morocco;[5]Natural Resources and Environment Team(RN&E),Faculty of Sciences and Technics,Errachidia,Moulay Ismail University,Morocco 出　　处：《Chemical Research in Chinese Universities》索引2020年第36卷第6期,共7页 基　　金：Supported by the Centre National de la Recherche Scientifique et Techniques,Rabat,Morocco(No.PROTARS D13/03). 摘　　要：The a-amino acid derivatives constitute a class of compounds of particular medicinal and synthetic attention and considerable interest has been devoted to their synthesis in recent years.In the present work,we develop the computational study of the synthesis reaction of new pyrazolyl a-amino esters derivatives using the Gaussian 09based on the DET/B3LYP density functional theorv method,with the base 6-31G(d.p)to ensure the possibility of carrying out these reactions within the laboratory of synthesis.Indeed,this research has encouraged us to establish an economical synthesis strategy of these products in overall vields of 73.5%to 87%to have access to new active biomolecule through the O-alkvlation reaction between methyl a-azidoglycinate N-benzoylated and primary pyrazole alcohols(3,5-dimethyl-1 H-pyrazol-1-yl)methanol,(1H-pyrazol-1-yl)methanol and(3-ethoxy-5-methyl-1H-pyrazol-1yl)methanoll under different operating conditions.The structure of the prepared heterocyclic systems was characterized by conventional spectroscopic techniques,like H NMR.I3℃NMR,and MS.The results revealed that the experimental study is in good correlation with the computational one. 关 键 词：a-Pyrazolyl amino ester Methyl a-azido glycinate N-benzoylated O-ALKYLATION DFT/B3LYP/6-31G(d,p)