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Intelligence Way from Eco-friendly Synthesis Strategy of New Heterocyclic Pyrazolic Carboxylic a-Amino Esters: 《Chemical Research in Chinese Universities》2020年第6期1183-1189,共7页EI Houssine MABROUK Nadia ARROUSSE Adil KORCHI Mohammed LACHGAR Ahmad OUBAIR Abdelrhani ELACHQAR Mohamed JABHA Mohammed LACHKAR Fadoua El HAJJAJI Zakia RAIS Mustapha TALEB; Supported by the Centre National de la Recherche Scientifique et Techniques,Rabat,Morocco(No.PROTARS D13/03).; 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...; 关键词：a-Pyrazolyl amino ester Methyl a-azido glycinate N-benzoylated O-ALKYLATION DFT/B3LYP/6-31G(d p)

Total synthesis of D-glycero-D-mannno-heptose 1β, 7-bisphosphate with 3-O-amyl amine linker and its monophosphate derivative被引量：3: 《Chinese Journal of Natural Medicines》2020年第8期628-632,共5页ZOU Xiao-Peng QIN Chun-Jun HU Jing FU Jun-Jie TIAN Guang-Zong MOSCOVITZ Oren SEEBERGER Peter H. YIN Jian; supported by the National Natural Science Foundation of China(Nos.21877052 and 21907039);the Natural Science Foundation of Jiangsu Province(Nos.BK20180030and BK20190575);the High-end Foreign Experts Recruitment Program;National First-class Discipline Program of Light Industry Technology and Engineering(No.LITE2018-14);the 111 Project(No.111-2-06);the Max Planck Society International Partner Group Program;China Scholarship Council(CSC);the Max-Planck Society for generous financial support。; D-Glycero-D-mannno-heptose 1β,7-bisphosphate(HBPβ)is an important intermediate for constructing the core structure of Gram-negative bacterial lipopolysaccharides and was reported as a pathogen-associated molecular p...; 关键词：HBPβ-3-O-amyl amine HP-1α-O-amyl amine 3-O-Alkylation NIS-mediated phosphorylation

Environmentally Benign Synthetic Protocol for O-Alkylation of <i>β</i>-Naphthols and Hydroxy Pyridines in Aqueous Micellar Media: 《Green and Sustainable Chemistry》2012年第4期123-132,共10页Kancharla Rajendar Reddy Kamatala Chinna Rajanna Soma Ramgopal Mukka Satish Kumar Sariah Sana; Ultrasonic and microwave-assisted practical methods have been developed for the O-alkylation of aryl (β-naphthols) and Heteroaryl (hydroxy pyridines) in aqueous surfactant media in good to excellent yields. The devel...; 关键词：Ultrasonically ASSISTED Microwave ASSISTED Green Chemistry Micelles β-Naphthols Heteroaryl HYDROXY Compounds Alcohols

O-Alkylation of Chitosan for Gene Delivery by Using Ionic Liquid in an in- situ Reactor: 《Engineering（科研）》2012年第10期114-117,共4页Huiying Chen Shaohui Cui Yinan Zhao Bing Wang Shubiao Zhang Huiying Chen Xiaojun Peng; An in-situ reactor was elaborately designed for O-alkylation of chitosan in an ionic liquid ([BMIM]Cl) solvent, using N, N'-carbonyldiimidazole? as bonding agent. The original chitosan and the modified chitosan were c...; 关键词：Gene Delivery CHITOSAN ALKYLATION Ionic Liquid Iu-Situ REACTOR

Cerium(Ⅳ) ammonium nitrate(CAN) initiated O-alkylation of oximes with N-vinyl lactams被引量：1: 《Chinese Chemical Letters》2011年第6期655-658,共4页Jian Tao Wang Xiao Dong Jia Li Jun Peng Long Min Wu; Project 20572040 was supported by National Natural Science Foundation of China; O-Alkylation of oximes with N-vinylpyrrolidin-2-one or N-methyl-N-vinylacetamide was efficiently initiated by a catalytic amount of cerium（Ⅳ） ammonium nitrate（CAN）,giving the corresponding oxime ether derivatives...; 关键词：Cerium（Ⅳ） ammonium nitrate O-ALKYLATION Oxime N-Vinylpyrrolidin-2-one N-Methyl-N-vinylacetamide

One-step selective synthesis of branched 1-O-alkyl-glycerol/diglycerol monoethers by catalytic reductive alkylation of ketones: 《Science China Chemistry》2010年第9期1953-1956,共4页DAYOUB Wissam LEMAIRE Marc; Financial support allocated in the frame of the MIRA collaborative program between Shanghai City (China) and Région Rhone-Alpes; Branched 1-O-alkyl glycerol and diglycerol monoethers were obtained in good yields and high selectivity by a straightforward catalytic reductive alkylation of glycerol with relevant ketones in the presence of 0.5 mol%...; 关键词：GLYCEROL monoether diglycerol monoether 1-O-alkylation PD/C reduction

Synthesis and cytotoxicity of 28-carboxymethoxy lupane triterpenoids.Preference of 28-O-acylation over 28-O-alkylation of betulm by ethyl bromoacetate: 《Chinese Chemical Letters》2009年第10期1141-1144,共4页Aye Aye Mar Ali Koohang Nathan D.Majewski Erika L.Szotek David A.Eiznhamer Michael T.Flavin; 28-Carboxymethoxy lupane tritepenoids 3 and 4 were synthesized by alkylation of betulin with the THP protected 2- hydroxyethyl iodide followed by oxidation and reduction. Direct reaction of betulin （5） or betulone ...; 关键词：Betulinic acid BETULIN Betulonic acid 28-O-Alkylation 28-O-Acylation CYTOTOXICITY

Efficient and Convenient Synthesis of Diethers from Furoin Under Ultrasound and Solid-liquid Phase Transfer Catalysis Conditions: 《Chemical Research in Chinese Universities》2007年第4期486-488,共3页ZHANG Feng LI Ya-zhuo WANG Yun-xin GAO Da-wei SUN Ji-kui ZHANG Yu-min ZHAO Tian-qi CHEN Xiao-dong; Supported by the Natural Science Foundation of Jilin Province,China(No.1999010540).; Compounds having an active hydroxy group, such as, acyloins can be easily alkylated by alkyl halides in the presence of a phase transfer catalyst （PTC）. The reaction is usually carried out in the presence of con-cen...; 关键词：ULTRASOUND Phase transfer catalysis Furoin O-ALKYLATION

Synthesis of diethers derived from furoin by phase transfer catalysis under microwave irradiation: 《Chinese Chemical Letters》2007年第7期791-794,共4页Feng Zhang Ya Zhuo Li Da Wei Gao Ji Kui Sun Yu Min Zhang; Natural Science Foundation of Jilin Province, China （No. 1999010540）.; A series of new diethers were obtained by alkylation of furoin under microwave irradiation （MWI） in phase transfer catalysis （PTC） conditions. The products of alkyl halides were synthesized in good yields （〉75%...; 关键词：Microwave irradiation FUROIN Phase transfer catalysis O-ALKYLATION

Facile O-alkylation of highly hydrophilic hyperbranched polyglycerol被引量：1: 《Chinese Chemical Letters》2007年第2期192-194,共3页De Cheng Wan Jun Jie Yuan Zheng Long Yang Hong Ting Pu; A facile and selective route for O-alkylation of highly hydrophilic, multifunctional hyperbranched polyglycerol (PG) under non-aqueous phase transfer catalyzed conditions in dimethyl sulfoxide was developed, through w...; 关键词：Hyperbranched polyglycerol O-ALKYLATION Phase transfer SELECTIVITY

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