Diethylamine → 1-(1,1-Dimethylethyl) 2-methyl 1,2-piperazinedicarboxylate

Participants

Reaction Steps

To a solution of piperazine-1,2,4-tricarboxylic acid 1-tert-butyl ester 4-(9H-fluoren-9-ylmethyl) ester 2-methyl ester (2.03 mmol) in DMF (4.0 mL) was added diethylamine (5%) and the resulting solution was stirred at room temperature overnight. The reaction mixture was concentrated in vacuo and purified using ethyl acetate/methanol (10%). ESI-MS m/z: 245 (M+1), UV retention time: 0.78 min.

Provenance & Evidence