Ethyl 3-bromopropionate → ethyl 3-(5-amino-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)propanoate

Participants

Reaction Conditions

Reaction Steps

To a solution of 5-Amino-4-(4-cyclopropyl-naphthalen-1-yl)-4H-[1,2,4]triazole-3-thiol (0.35 g, 1.239 mmol) in DMF (2.5 mL) was added 3-Bromo-propionic acid ethyl ester (158 μL, 224 mg; 1.239 mmol) and heated to 60° C. for 20 hours. The reaction mixture was concentrated and sonicated with ethyl ether several times, decanting the ethyl ether layer. The resulting light yellow oil was placed on high vacuum to afford crude ethyl 3-(5-amino-4-(4-cyclopropylnaphthalen-1-yl)-4H-1,2,4-triazol-3-ylthio)propanoate as a light brown oily foam which was used directly in the next step (0.409 g, 87%).

Provenance & Evidence