Three-Component Reaction of Sulfonamides with Acetylene and Amines
作者:B. A. Shainyan、V. I. Meshcheryakov、I. V. Sterkhova
DOI:10.1134/s107042801902009x
日期:2019.2
N-(2-Phenyl-1-piperidin-1-ylethylidene)tosylamide was synthesized by oxidative coupling of arenesulfonamides, acetylenes, and secondary amines. The reaction of phenylacetylene or propargyl alcohol with triflamide and piperidine under the same conditions unexpectedly gave N-[(1E)-piperidin-1-ylmethylidene]triflamide TfN=CHNC5H10 as a result of cleavage of the triple bond in the alkyne. A similar reaction