Iodoethane → 4-Chloro-5-ethyl-5,7-dihydro-pyrrolo[2,3-d]pyrimidin-6-one

Beteiligte Stoffe

Reaktionsbedingungen

Reaktionsschritte

Add 4-chloro-5,7-dihydro-pyrrolo[2,3-d]pyrimidin-6-one (0.5 g; 0.0029 mol; 1.0 equiv) in THF (20 mL) and cool to −78° C. under argon atmosphere. Add drop-wise lithium hexamethyl-disilazide (5.89 mL, 0.0059 mol; 2.0 equiv; 1 M in THF). Stir at −78° C. for 30 min. Add drop-wise ethyl iodide (0.48 mL; 0.0059 mol; 2.0 equiv) and allow the reaction temperature to come to 0° C. slowly. Stir for 4 h. Quench with saturated ammonium chloride aqueous and extract with EA. Evaporate the organic layer to get the title compound (0.24 g; 41.38%).

Herkunft & Nachweise