反应详情

To a suspension of 2-isopropylamino-6-methyl-pyrimidine-4-carboxylic acid amide (1.24 g, 6.4 mmol) in DCM (20 mL), pyridine (2.53 mL, 25.6 mmol) is added followed by TFFA (2.7 mL, 19.2 mmol). The reaction mixture is stirred for 4 h, and then is quenched with water. The mixture is extracted with DCM. The org. phase is washed with sat. aq. NaHCO3 and dried over MgSO4, filtered and evaporated. Purification by CC on silica gel (eluting with Heptane/EtOAc 4:1) affords the 2-isopropylamino-6-methyl-pyrimidine-4-carbonitrile as a yellow oil (2.81 g); LC-MS: tR=0.89; [M+H]+=177.04.

1. additionis added
2. customis quenched with water
3. extractionThe mixture is extracted with DCM
4. washphase is washed with sat. aq. NaHCO3
5. dry with materialdried over MgSO4
6. filtrationfiltered
7. customevaporated
8. customPurification by CC on silica gel (eluting with Heptane/EtOAc 4:1)