KETALS

作品数：17被引量：29H指数：4
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相关领域：理学更多>>
相关作者：徐立进郑小燕王学业彭月明更多>>
相关机构：中国人民大学湘潭大学更多>>
相关期刊：《Journal of Wuhan University of Technology(Materials Science)》《Journal of Chemistry and Chemical Engineering》《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》《Chinese Journal of Chemistry》更多>>
相关基金：国家自然科学基金湖北省自然科学基金更多>>
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Bifunctional organocatalyst-catalyzed dynamic kinetic resolution of hemiketals for synthesis of chiral ketals via hydrogen bonding control
《Chinese Chemical Letters》2025年第1期248-252,共5页Meng Shan Yongmei Yu Mengli Sun Shuping Yang Mengqi Wang Bo Zhu Junbiao Chang 
supported by the National Natural Science Foundation of China(Nos.82130103,82151525 and 81903465);the Central Plains Scholars and Scientists Studio Fund(2018002);the Natural Science Foundation of Henan Province(No.212300410051);the Science and Technology Major Project of Henan Province(No.221100310300)。
Herein,we report the dynamic kinetic resolution asymmetric acylation ofγ-hydroxy-γ-perfluoroalkyl butenolides/phthalides catalyzed by amino acid-derived bifunctional organocatalysts,and a series of ketals were obtai...
关键词：Bifunctional organocatalyst Dynamic kinetic resolution Hemiketal Chiral ketals Hydrogen bonding 
Synthesis of 2,2-Bis-C-functionalized Chain Glucosid-3-ketals
《Chinese Journal of Chemistry》2012年第1期195-198,共4页张福义 刘虹 盛英明 刘宏民 
This work was supported by the National Natural Science Foundation of China （No. 20972142） and the State Key Laboratory of Bio-organic and Natural Prod- ucts Chemistry, CAS （08417）.
Novel 2,2-bis-C-functionalized chain glucosid-3-uloses have been synthesized in the form of ketal. The synthesis is rather convenient through one pot multistep reactions and no expensive reagents are involved. The pro...
关键词：2 2-bis-C-functionalized chain glucosid-3-ketal double-strand supramolecular stacking synthesis de-sign crystal structure AUTOXIDATION 
Polyaniline Supported 12-Tungstosilicic Acid as the Catalyst for Acetals and Ketals Synthesis被引量：1
《Journal of Wuhan University of Technology(Materials Science)》2009年第3期371-375,共5页杨永金 PHILIPPE G Merle 
Funded by the Natural Science Foundation of Hubei Province (No.2005ABA053);Hubei Key Laboratory of Pollutant Analysis & Reuse Technology;the National Natural Science Foundation of China (No. 20471044)
A novel environmental friendly catalyst, H4SiW12O40/PAn was prepared and identified by FT-IR, XRD and TG/DTA. The optimal synthetic protocol was a PAn to H4SiW12O40 mass ratio of 1 ： 1, a 20 mL of methanol and a reac...
关键词：12-tungstosilicic acid POLYANILINE ACETAL KETAL catalysis 
H4SiW6Mo6O40-Doped Polyaniline-Synthesis, characterization and catalytic properties of acetals and ketals被引量：2
《Journal of Chemistry and Chemical Engineering》2008年第4期35-41,共7页YANG Shui-jin DU xin—xian PhilippeG．Merle 
A new environmental friendly catalyst, HaSiWrMo6O40/PAn was prepared and identified by means of FT-IR, XRD and TG/DTA. The optimum conditions have been found, that was, mass ratio of m（PAn）： m（HaSiW6Mo6On.） was 1...
关键词：2 4-dimethyl-2-ethoxycarbonylmethyl-1 3-dioxo-lane H4SiW6Mo6O4O polyaniline ACETALATION KETALATION catalyst 
Catalytic synthesis of acetals and ketals with H3PW12O40/PAn被引量：11
《Rare Metals》2008年第1期89-94,共6页YANG Shuijin ZHANG Yijun DU Xinxian Philippe G. Merle 
supported by the Natural Science Foundation of Hubei Province,China(No.2005ABA053);Hubei Key Laboratory of Bioanalytical Technique,and the National Natural Science Foundation of China(No.20471044).
A new environmental friendly catalyst H3PW12O40/PAn was prepared and identified by means of FT-IR,XRD,and TG/DTA.The optimum conditions have been found;that is,the mass ratio of PAn to H3PW12O40 is 1：1.5,the volume o...
关键词：phosphotungstic acid ACETAL KETAL POLYANILINE CATALYSIS 
Tungstophosphoric heteropolyacid supported onto neutral alumina: characterization and synthesis of acetals and ketals被引量：6
《Rare Metals》2007年第2期152-157,共6页GAO Jinzhang WEI Yunxia WANG Xuemei YANG Wu 
This work was supported in part by the Combined Project between the Educational Commission and the Economic Com-mission of Gansu Province (No. 99CX-04);the Natural Science Foundation of Gansu Province (No. 3ZS041-A25-028),;the Invention Project of Science & Technology, China (No. KJCXGC-01, NWNU).
Tungstophosphoric acid （HPW） catalyst supported on the neural alumina was studied. It was prepared by means of an equilibrium and incipient wetness impregnation technique. Solution of HPW in 50% V/V ethanol-water wa...
关键词：HETEROPOLYACID tungstophosphodc catalyst catalytic activity ACETAL ketal. 
Catalytic synthesis of acetals and ketals with H3PW6Mo6O40/TiO2被引量：1
《Journal of Chemistry and Chemical Engineering》2007年第1期8-11,39,共5页YANG Shui-jin TONG Wen-long Philippe G. Merle 
Acknowledgements： This work was financially supported by the Natural Science Foundation of Hubei Province, China （No. 2005ABA053） and the National Natural Science Foundation of China （No. 20471044）.
A new environmental friendly catalyst, H3PW6Mo6O40/TiO2 was prepared. The optimum conditions have been found, that is, mass ratio of m （TiO2）： m （H3PW6Mo6O40） is 1：2.0, volume of water is 30 mL, the reflux react...
关键词：H3PW6MO6O40 TiO2 ACETALATION KETALATION CATALYSIS 
Eco-friendly one-pot synthesis of acetals and ketals by heterogeneously catalyzed liquid-solid phase reaction被引量：5
《Rare Metals》2006年第6期625-629,共5页YANG Shuijin WANG Min LIANG Yongguang SUN Jutang 
This work was financially supported by the Natural Science Foundation of Hubei Province, China (No. 2005ABA053) and the National Natural Science Foundation of China (No. 20471044).
Twelve classes of acetals and ketals were synthesized from aldehyde/ketone and glycol using ZiSiW12O40/TiO2 as a novel eco-friendly catalyst. The physical characterizations were carried out by TG/DTA, FT-IR, XRD, and ...
关键词：catalysis heteropoly acid ACETALATION KETALATION ZiSiW12O40/TiO2 
Synthesis of acetals and ketals catalyzed by tungstosilicic acid supported on active carbon被引量：9
《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》2005年第5期373-377,共5页杨水金 杜心贤 贺兰 孙聚堂 
Project supported by the Natural Science Foundation of HubeiProvince Education Committee (No. 2004D007) and the NationalNatural Science Foundation of China (No. 20471044)
Catalytic activity of activated carbon supported tungstosilicic acidin synthesizing 2-methyl-2-ethoxycarbonylmethyl- 1,3-dioxolane, 2,4-dimethyl-2-ethoxycarbonylmethyl-1,3-dioxolane, cyclohexanone ethylene ketal, cycl...
关键词：Tungstosilicic acid Aceta KETAL Active carbon CATALYSIS 
Stable Send-ketals of 3',5'-O-(Tetraisopropyldisiloxane-1,3-diyl)-2'-Ketouridine
《Chinese Chemical Letters》1998年第11期989-992,共4页Guo Chen CHI Zhong Biao ZHANG Xiao Hua Xu and Ru Yu CHEN (Insitute of Elemento-Organic Chemistry, State Key Laboratory of Elemento-Organic Chemistry,Nankai University, Tianjin, 300071) 
A series of stable semi-ketals were obtained via the reactions of 3',5'-O-(tetraisopropyldisiloxane-1,3-diyl)-2'-ketouridine 1 with primary alcohols. In the addition reaction,only a single diastereomer was observed. T...
关键词：NUCLEOSIDE ketonucleoside semi-ketal configuration 
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