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微波促进的葡萄糖烯与硝酮的1,3-偶极环加成反应 被引量:1
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作者 李小六 王彦坡 +2 位作者 陈华 李志伟 邢春勇 《有机化学》 SCIE CAS CSCD 北大核心 2008年第10期1750-1755,共6页
在微波辐射下,葡萄糖烯(1)与硝酮2环加成反应的效率大大提到,在乙二醇二甲醚溶液中,200℃封管反应2min,环加成反应产物的收率可高达96%,而且反应的立体选择性无明显变化.利用环加成产物可进一步合成各种含官能团的碳糖苷衍生物,找到了... 在微波辐射下,葡萄糖烯(1)与硝酮2环加成反应的效率大大提到,在乙二醇二甲醚溶液中,200℃封管反应2min,环加成反应产物的收率可高达96%,而且反应的立体选择性无明显变化.利用环加成产物可进一步合成各种含官能团的碳糖苷衍生物,找到了一种合成碳糖苷衍生物中间体的简便有效方法. 展开更多
关键词 微波促进 1 3-偶极环加成反应 外糖烯 硝酮 螺异嗯唑烷糖苷
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Synthesis of Novel Fuctionalized Glycosides Based on 1,3-Dipolar Cycloaddition
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作者 Li Xiao-liu, Zhang Ping-zhu, Wang Yan-po, Chen Hua(Department of Chemistry, Laboratory of Chemical Biology, Hebei University, Baoding, Hebei 071002, China) 《复旦学报(自然科学版)》 CAS CSCD 北大核心 2007年第5期585-,共1页
1 Results 1,3-Dipolar cycloaddition reaction is one of the most common methods for preparing various five membered heterocycles,and provides a conveniet protocols for constructing C-C bond with functional groups.The r... 1 Results 1,3-Dipolar cycloaddition reaction is one of the most common methods for preparing various five membered heterocycles,and provides a conveniet protocols for constructing C-C bond with functional groups.The reaction has also been successfully used in the syntheses of C-glycosides and other sacharride derivatives.We wish to present herein our recent approaches on the synthesis of novel C-amino-glycosides,C-aminodisaccharides,spiro heterocyclic glycosides and heterocycle linked C-disaccharides,et... 展开更多
关键词 1 3-Dipolar cycloaddition reaction exo-glycal NITRONE nitrile oxide
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Stereoselective Synthesis of Novel C-Disaccharides via Suzuki Cross-Coupling Reaction
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作者 LI, Xiao-Liu XU, Xiao-Ming +1 位作者 TIAN, Jun LI, Ying-Xia 《Chinese Journal of Chemistry》 SCIE CAS CSCD 2005年第11期1564-1568,共5页
Novel β-C-disaccharides containing a three carbon linkage using exo-glycal as the precursor were prepared stereoselectively. The synthesis was achieved by the tandem reactions of the stereoselective hydroboration of ... Novel β-C-disaccharides containing a three carbon linkage using exo-glycal as the precursor were prepared stereoselectively. The synthesis was achieved by the tandem reactions of the stereoselective hydroboration of exo-glycal and Suzuki cross-coupling reaction with an iodovinyl sugar, and followed by hydrogenated deprotection under the catalysis of Pd(OH)2/C. 展开更多
关键词 exo-glycal Suzuki coupling reaction C-DISACCHARIDE
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New Approach to the Synthesis of C-Glycosides
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作者 Xiaoliu Li Kefang Duan Zhiwei Li Haiyang Liu Hua Chen 《复旦学报(自然科学版)》 CAS CSCD 北大核心 2005年第5期724-725,共2页
关键词 配糖 碳水化合物 合成方法 烯糖
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