DIFLUOROMETHYLENE

作品数：10被引量：12H指数：2
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相关领域：理学更多>>
相关机构：上海大学更多>>
相关期刊：《Science China Chemistry》《Chinese Journal of Chemistry》《Chinese Chemical Letters》更多>>
相关基金：国家自然科学基金国家重点基础研究发展计划广东省自然科学基金更多>>
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Metal-free regioselective construction of 2-aryl-2H-tetrazol-5-yl difluoromethylene phosphonates被引量：1
《Chinese Chemical Letters》2022年第2期863-866,共4页Shi-Jing Zhai Dominique Cahard Fa-Guang Zhang Jun-An Ma 
supported by the National Natural Science Foundation of China (Nos.21772142,21901181 and 21961142015);the National Key Research and Development Program of China (No.2019YFA0905100);Tianjin Municipal Science & Technology Commission (No.19JCQNJC04700);the CNRS in France。
Three bench-stable difluoromethylene phosphonate hydrazones were prepared from simple diethyl(difluoromethyl)phosphonate within two steps in good yields. The [3 + 2] cycloaddition reaction of these diazo precursors wi...
关键词：TETRAZOLE Cycloaddition Difluoromethylene phosphonate Regioselectivity Diazonium salt 
Cu（I）-Catalyzed Three-Component Coupling of Trifluoromethyl Ketone N-Tosylhydrazones, Alkynes and Azides： Synthesis of Difluoromethylene Substituted 1,2,3-Triazoles被引量：5
《Chinese Journal of Chemistry》2017年第4期387-391,共5页Zhikun Zhang Qi Zhou Weizhi Yu Tianjiao Li Yan Zhang Jianbo Wang 
A Cul-catalyzed three-component coupling of trifluoromethyl ketone N-tosylhydrazones, alkynes and azides has been developed. The reaction represents a straightforward method to access difluoromethylene substituted 1,2...
关键词：Cu（I）-catalysis metal carbene migratory insertion β-fluoride elimination triazole 
Design and concise synthesis of gem-difluoromethylenated analogue of 7-epi-castanospermine被引量：3
《Chinese Chemical Letters》2014年第8期1115-1120,共6页Xin-Yi Jiang Xiu-Hua Xu Feng-Ling Qing 
the National Natural Science Foundation of China (Nos. 21272036, 21332010);the National Basic Research Program of China (No. 2012CB21600)
A novel gem-difluoromethylenated castanospermine analogue B was designed and synthesized, starting from 3-bromo-3,3-difluoropropene and L-（-）-malic acid. The key steps involve substitution cyclization reaction and R...
关键词：lndolizidine CASTANOSPERMINE gem-Difluoromethylene CYCLIZATION DIHYDROXYLATION 
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