Ethanamine, 2,2,2-trifluoro- → 5-Iodo-N-(2,2,2-trifluoroethyl)-4-pyrimidinamine

Participants

Reaction Conditions

Reaction Steps

To a solution of 4-chloro-5-iodopyrimidine (0.250 g, 1.040 mmol) and 2,2,2-trifluoroethanamine (0.216 g, 2.184 mmol) in EtOH (volume: 2.080 ml) was added Hunig's Base (0.200 ml, 1.144 mmol). The reaction mixture was heated in a microwave for 4 h at 120° C. and then allowed to cool to room temperature. The solvent was evaporated. The crude material was dissolved in a minimal amount of CH2Cl2 to be chromatographed. Purification of the crude material by silica gel chromatography using an ISCO machine (24 g column, 35 mL/min, 0-90% EtOAc in hexanes over 25 min, ret. T=12 min) gave Intermediate 107A (0.188 g, 0.614 mmol, 59.1% yield) as a yellow residue. MS (ESI): m/z=303.9 [M+H]+ HPLC Peak ret. T=1.26 minutes was product. (HPLC conditions: Column:Luna C18 4.6×30 mm 3 u A:10:90 H2O:ACN NH4OAc/B:10:90 H2O:ACN NH4OAc; 0%-95% B in 2 min; 4 mL/min flow).

Provenance & Evidence