1,1,3,3,3-Pentafluoropropene secondary amine adducts new selective fluorinating agents
作者:Henryk Koroniak、Justyna Walkowiak、Krzysztof Grys、Andrzej Rajchel、Adam Alty、Rick Du Boisson
DOI:10.1016/j.jfluchem.2006.07.006
日期:2006.9
of two products (1-dialkylamine-1,3,3,3-tetrafluoropropene and N,N-dialkyl-1,1,3,3,3-pentafluoropropylamine) in different ratios. Those reaction mixtures, however, were found to be efficient fluorinating agents replacing hydroxyl groups in alcohols into fluorine. In general, they react with alcohols yielding corresponding fluorides, equimolar amounts of appropriate 3,3,3-trifluoropropionamide and hydrogen
在五氟丙烯PFP中添加仲胺SA(二甲胺DMA,二乙胺DEA,吡咯烷Pyr,哌啶Pip,吗啉Mor)会产生两种产物(1-二烷基胺-1,3,3,3-四氟丙烯和N的混合物)ñ-二烷基-1,1,3,3,3-五氟丙胺)的比例不同。然而,发现那些反应混合物是将醇中的羟基取代为氟的有效氟化剂。通常,它们与醇反应产生相应的氟化物,等摩尔量的适当的3,3,3-三氟丙酰胺和氟化氢。包括辛醇和苄醇的脂肪族伯醇仅产生烷基氟化物。除了所需的氟化物外,仲醇和叔醇通常还会产生大量的烯烃。