Multi-step reactions of N-monosubstituted (polyfluoroalkane)thioamides with alkyllithium reagents
作者:Sergiy S. Mikhailichenko、Alexander V. Rudnichenko、Vadim M. Timoshenko、Alexander N. Chernega、Yuriy G. Shermolovich、Fabienne Grellepois、Charles Portella
DOI:10.1016/j.jfluchem.2007.02.007
日期:2007.7
Reactions of N-alkyl- or N-aryl(perfluoroalkyl)thiocarboxamides with alkyl lithium reagents are described. Trifluorothioacetamides are converted into the corresponding lithium salts. Compounds bearing a long polyfluorinated chain terminated by a CHF2 group and compounds containing an N-alkyl substituent with a proton adjacent to nitrogen react further via a multi-step reaction sequence involving HF
描述了N-烷基-或N-芳基(全氟烷基)硫代羧酰胺与烷基锂试剂的反应。将三氟硫代乙酰胺转化为相应的锂盐。带有通过CHF 2基团终止的多氟长链的化合物和含有N-烷基取代基且质子与氮相邻的化合物进一步通过涉及HF消除,然后进行乙烯基氟取代和/或S N '型的多步反应序列进一步反应氟取代。这些转变导致不饱和的N-单取代的多氟代硫代酰胺。