SYNTHESIS OF 2-POLYFLUOROALKYL-2,3-DIHYDRO-1,3,4-THIADIAZOLES <i>VIA</i> REGIOSELECTIVE [3+2] CYCLOADDITION OF NITRILE IMINES TO POLYFLUOROALKANETHIOAMIDES
DOI:
https://doi.org/10.1007/4095Keywords:
2, 3-dihydro-1, 3, 4-thiadiazole, nitrile imine, polyfluoroalkanethiocarboxylic acids, thioamide, [3 2] cycloaddition, quantumchemical calculationsAbstract
[3+2] Cycloaddition reactions of polyfluoroalkanethioamides with nitrile imines, generated in situ by dehydrochlorination of the corresponding hydrazonoyl chlorides, in the presence of triethylamine, were studied. A new method was proposed on the basis of these reactions for the synthesis of 2-polyfluoroalkyl-2,3-dihydro-1,3,4-thiadiazoles.
Authors: Sergiy S. Mykhaylychenko, Nadezhda V. Pikun, Eduard B. Rusanov, Alexander B. Rozhenko, Yuriy G. Shermolovich*