KPTA and KBTA represent potentially useful potassium bases, filling a void that allows for metalations that are unattainable using the commercially available but markedly less basic KHMDS. The stabilities of stock solutions in neat Et3N The progress made in determining the solution structures was impeded by chronic challenges presented by the often-inexplicable disappearance of the 29 Si resonances, problems that were largely absent in previous studies of alkali metal silazide bases. Nonetheless, the assignments offer structural foundations for further work. Orthometalations taxed the limits of the KBTA basicity, but the variable yields showed promise, and the use of 1.0 M stock solutions in neat Et3N is noteworthy. With that said, we found no particular benefits of moving a step further down the periodic table. To the standard practitioner, the isostructural NaPTA and NaBTA may be a more appropriate first effort barring specific needs demanding a potassium counterion. In the free market of ideas, however, applications uniquely suited for KPTA and KBTA may be forthcoming.