HuagongsheHuagongshe Chemistry Print Report · For research reference only
1,2-Dichloroethane → 5-Bromo-N-methylpyrimidine-4-carboxamide
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | 1,2-Dichloroethane | HCID 11 | — |
| Reactant | 1-Hydroxybenzotriazole | HCID 75771 | — |
| Reactant | Diisopropylethylamine | HCID 81531 | — |
| Reactant | Methylamine hydrochloride | HCID 6364545 | — |
| Reactant | 5-Bromopyrimidine-4-carboxylic acid | HCID 21329200 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 5-Bromo-N-methylpyrimidine-4-carboxamide | HCID 83814743 | 35% |
Reaction Steps
To a mixture of 5-bromopyrimidine-4-carboxylic acid (0.3 g, 1.478 mmol) in DMF (3 mL) were added HOBt (0.260 g, 1.921 mmol), EDC (0.397 g, 2.069 mmol), methanamine HCl (0.200 g, 2.96 mmol), followed by N-ethyl-N-isopropylpropan-2-amine (0.772 mL, 4.43 mmol). The reaction mixture was stirred for 18 hours at room temperature. The crude residue was purified by preparative HPLC (Waters SunFire C18, 5 μm, 30 mm ID×75 mm column) eluting with 5% ACN (containing 0.035% TFA) in water (containing 0.05% TFA) to give the title compound as a light brown solid (0.11 g, 35%). ESI-MS m/z [M+H]+ calc'd for C6H7BrN3O, 216.0. found 216.0.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US09434743B2 |
| Source dataset | uspto-grants-2016_09 |
| ORD ID | ord-055340dfd0d44bdf8f11f2c55eb6e549 |
| Source note | uspto-grants-2016_09 |