HCID 12642259, compound → HCID 178440131, compound

Participants

Reaction Steps

Under nitrogen, a solution of 18.9 g (100 mmol) of N-Boc glycine hydrazide (from step 2 of Example 3) in 100 mL of methanol is treated with 11.5 g (100 mmol) of ethyl iminobutyrate [P. Reynaud and R. C. Moreau, Bull. Soc. Chim. France, 2997 (1964)]. The reaction is stirred at reflux overnight and concentrated in vacuo. Purification by silica gel chromatography (Waters Prep-500A) gives 5-propyl-3-tert-butoxycarbonylaminomethyl-1H-1,2,4-triazole.

Provenance & Evidence