A versatile difluorovinylation method: Cross-coupling reactions of the 2,2-difluorovinylzinc–TMEDA complex with alkenyl, alkynyl, allyl, and benzyl halides
2-difluorovinylzinc–TMEDA complex was prepared via a deprotonation–transmetallation sequence starting from commercially available 1,1-difluoroethylene. The complex thus formed was successfully applied to transition metal-catalyzed cross-coupling reactions with a wide range of organic halides, which led to the syntheses of 2,2-difluorovinyl compounds. On treatment with the difluorovinylzinc–TMEDA complex in the presence
Visible light photocatalytic decarboxylative monofluoroalkenylation of α-amino acids with gem-difluoroalkenes
作者:Jingjing Li、Quentin Lefebvre、Haijun Yang、Yufen Zhao、Hua Fu
DOI:10.1039/c7cc05758j
日期:——
A novel, efficient and general visible-light photocatalytic decarboxylative monofluoroalkenylation of N-protected α-amino acids with gem-difluoroalkenes is reported, affording the corresponding α-amino monofluoroalkenes.
reported. By taking advantage of the in situ generated α-CF3-benzylsilver intermediates derivedfrom the nucleophilic addition of silver fluoride to gem-difluoroalkenes, this strategy bypasses the use of a strong base, thus enabling a mild and general synthetic method for ready access to non-symmetric α,α-disubstituted trifluoroethane derivatives.
Metal-Free Access to (<i>E/Z</i>
)-α-Fluorovinyl Phosphorus Compounds from <i>gem</i>
-Difluorostyrenes
作者:Yingyuan Peng、Xiaofei Zhang、Xueyu Qi、Qian He、Bin Zhang、Jian Hao、Chunhao Yang
DOI:10.1002/ejoc.201801602
日期:2019.2.7
A facile and efficient method to synthesize (E/Z)‐α‐fluorovinyl phosphorus compounds from gem‐difluorostyrenes and diphenylphosphine oxide/dialkyl phosphate in the presence of DBU at room temperature was developed. This method may provide a practical and concise route for the synthesis of these phosphorus compounds in material chemistry and drug discovery in the future.
[EN] ANTIFUNGAL AZOLE DERIVATIVES HAVING A FLUOROVINYL MOIETY AND PROCESS FOR THE PREPARATION THEREOF<br/>[FR] DERIVES AZOLE ANTIFONGIQUES CONTENANT UN GROUPE FONCTIONNEL FLUOROVINYLE ET PROCEDE DE PREPARATION ASSOCIE
申请人:KOREA RES INST CHEM TECH
公开号:WO2005014583A1
公开(公告)日:2005-02-17
An azole derivative of formula (I) having a fluorovinyl moiety or a pharmaceutically acceptable salt thereof is superior to the conventional antifungal drugs in antifungal activity against a wide spectrum of pathogenic fungi, and has advantageously low toxicity.