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

Temperature

120 °C

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 hr 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, tr=12 min) gave the title compound (0.188 g, 0.614 mmol, 59.1% yield) as a yellow residue. ESI MS (M+H)+=303.9.

1. temperatureto cool to room temperature
2. customThe solvent was evaporated
3. dissolutionThe crude material was dissolved in a minimal amount of CH2Cl2
4. customto be chromatographed
5. customPurification of the crude material by silica gel chromatography
6. customan ISCO machine (24 g column, 35 mL/min, 0-90% EtOAc in hexanes over 25 min, tr=12 min)

ORD record

ord-2c4ea895e7c5486bbb3236056a04048d

Source dataset

uspto-grants-2015_03

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08969586B2