Reaction of 3-trimethylsilyl-2-propiolyl chloride with ethylenediamine and hexamethylenediamine provided previously unknown bis(trimethylsilylpropiolyl)amides. Reactions of the acyl halide with 1,2-phenylenediamine and 2-aminoethanethiol proceeded regioselectively at a single reaction center to furnish amino- and thioamides of trimethylsilylpropiolic acid.