Réaction #722357

Équation de réaction

triethylamine

3-pyrrolecarboxylic acid

β-alanine benzyl ester p-toluenesulfonate

diethyl phosphorocyanidate

→

benzyl 3-(3-pyrrolecarboxamido)-propionate

Solvants

dimethylformamide

dimethylformamide

dimethylformamide

Conditions de réaction

Traitement

1. 1
   workup.STIRRINGThe reaction mixture was stirred at 0° C. for 1 hour

Mode opératoire

Into a solution of 1.67 g (15 mmol) of 3-pyrrolecarboxylic acid and 6.33 g (18 mmol) of β-alanine benzyl ester p-toluenesulfonate in 20 ml of dimethylformamide, a solution of 2.94 g (18 mmol) of diethyl phosphorocyanidate in 10 ml of dimethylformamide was added dropwise under ice cooling and stirring. A solution of 3.64 g (36 mmol) of triethylamine in 20 ml of dimethylformamide was then added dropwise. The reaction mixture was stirred at 0° C. for 1 hour and then at room temperature for 24 hours.

Source