Table 2.

Synthesis of deutero 1,2,4-triazolo[1,5-a]pyridines^a.

D content (%)b	Yield (%)	D content (%)b	Yield (%)
14	40	15	40
16	42	17	46

^aConditions: salt 1a (0.20 mmol), RCN (0.2 mmol), t-BuOK (1.0 mmol), D₂O (1.5 mL), rt, overnight under air. ^bD content (%) was determined by ¹H NMR.