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。
Reactions of polyfluoroalkanethioamides with tris(diethylamino)phosphine
作者:N. V. Pikun、S. S. Mykhaylychenko、E. B. Rusanov、Yu. G. Shermolovich
DOI:10.1134/s1070428013110031
日期:2013.11
Structure of reaction products obtained from tris(diethylamino)phosphine with N,Ndialkylpolyfluoroalkanethioamides depends on the length of the polyfluoroalkyl substituent in the latter. In the case of morpholides of perfluorothiopropionic and perfluorothiobutyric acids the main reaction products are fluoro-containing aminoacetylenes: 4-(perfluoroalkan-1-yn-1-yl)morpholines, and also tris(diethylamino)phosphine
First synthesis of 2-aminosubstituted-2-perfluoroalkyl-3,6-dihydro-2H-thiopyrans by hetero-Diels–Alder reactions of fluorinated thioamides under microwave heating
作者:Sergey S. Mikhailichenko、Jean-Philippe Bouillon、Thierry Besson、Yuri. G. Shermolovich
DOI:10.1016/j.tetlet.2009.12.064
日期:2010.2
This Letter presents the first examples of hetero-Diels-Alder reactions of polyfluoroalkanethiocarboxylic acid amides and 2,3-dimethylbutadiene under microwave heating. Cycloaddition reactions proved to be dependent on the nature of perfluoroalkyl chain and on the substituents attached to the nitrogen atom. Formation of ammonium salts was also performed by simple treatment of the corresponding cycloadducts with trifluoromethanesulfonic acid. In the case of octafluorobutyl-substituted derivative, one spontaneous desamination reaction took place leading to new 2H-thiopyran. (C) 2009 Elsevier Ltd. All rights reserved.