Huagongshe화공사 화학 정보 인쇄 보고서 · 연구 참고용
Sodium Carbonate → 2,4-Dimethoxy-5-pyrazin-2-yl-pyrimidine
참여 물질
| 역할 | 이름 | HCID | 투입량 |
|---|---|---|---|
| 반응물 | Sodium Carbonate | HCID 10340 | — |
| 반응물 | Triphenylphosphine | HCID 11776 | — |
| 반응물 | Iodopyrazine | HCID 642841 | — |
| 반응물 | (2,4-Dimethoxypyrimidin-5-yl)boronic acid | HCID 2736209 | — |
| 촉매 | palladium(II) acetate | HCID 167845 | — |
| 용매 | 1-Propanol | HCID 1031 | — |
| 생성물 | 2,4-Dimethoxy-5-pyrazin-2-yl-pyrimidine | HCID 58994206 | 45.4% |
반응 단계
2,4-Dimethoxy-pyrimidine-5-boronic acid (1.33 g, 7.27 mmol) was dissolved in degassed n-PrOH (20 ml) and then 2-iodo-pyrazine (1.0 g, 4.85 mmol), Na2CO3 (1.02 g, 9.70 mmol), PPh3 (127 mg, 0.48 mmol) and Pd(OAc)2 (54 mg) were added. The suspension was stirred at reflux for 4 hours. The solvent was evaporated under vacuum and the crude was partitioned between water and DCM. The organic phase was dried (Na2SO4) and evaporated. The crude was purified by flash chromatography eluting with DCM-MeOH—NH4OH (99-1-0.1) to give 481 mg of the title compound (45% yield).
출처 및 근거
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| 특허 번호 | US07727988B2 |
| 출처 데이터셋 | uspto-grants-2010_06 |
| ORD ID | ord-d9b136ad99c54c0f9e509de38773057c |
| 출처 메모 | uspto-grants-2010_06 |