As part of this line of inquiry, we wished to investigate a related reaction with aziridines bearing remote silanols. This is an intriguing problem because silanols contain two oxygens capable of nucleophilic attack, and a variety of heterocycles could form depending on the mode of aziridine ring cleavage (Scheme 1B). Our past work with silanols has illustrated that the nature of the substrate strongly dictates the ring-size of the product heterocycle (Scheme 1A); with these aziridine silanols, 5, 7, or 8-membered heterocycles could conceivably form (Scheme 1B).