2-Morpholinoethylamine → HCID 86588190, compound

Participants

Reaction Steps

To a solution of N-aminoethylmorpholine (228 mg, 10 mmole) in 2 mL anhydrous THF at −40° C. was added 0.8 mL of 2 M n-BuLi solution in cyclohexane. Some white solid was precipitated instantly. The suspension was stirred for about a half an hour. When the bath temperature reached −10° C., a solution of 5-phenylamino-[1,2,3]thiadiazole-4-carboxylic acid ethyl ester (60 mg, 0.24 mmole) in anhydrous THF was added to the mixture. After it was stirred at room temperature for an hour, the reaction was quenched with saturated NH4Cl solution. The solution was extracted with EtOAc and residue obtained after the removal of EtOAc was purified by preparative TLC (silica gel, CH2Cl2:MeOH=15:1). The title compound was isolated as a white powder in 60% yield (48 mg). 1H NMR (ppm, in CDCl3): 10.91 (br. s, 1H), 7.77 (br. s, 1H), 7.00-7.60 (m, 5H), 3.70 (m, 4H), 2.60 (m, 4H).

Provenance & Evidence