Phenacyl bromide → 5-Iodo-1-phenacylpyrimidin-2-one
반응식
[I:1][C:2]1[CH:3]=[N:4][C:5](=[O:8])[NH:6][CH:7]=1.Br[CH2:10][C:11]([C:13]1[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=1)=[O:12]>C(N(CC)CC)C.C(O)C>[I:1][C:2]1[CH:3]=[N:4][C:5](=[O:8])[N:6]([CH2:10][C:11]([C:13]2[CH:18]=[CH:17][CH:16]=[CH:15][CH:14]=2)=[O:12])[CH:7]=1참가 물질
5
실험 절차
A suspension of 5-iodopyrimidin-2-one (556 mg) and α-bromoacetophenone (533 mg) in triethylamine (0.5 ml) and ethanol (50 ml) was stirred at ambient temperature for 71/2 hours. The resulting solution was evaporated and the residue triturated with water. This product was purified by preparative thin-layer chromatography on silica before crystallisation from ethyl acetate to give the title pyrimidinone: yield 253 mg: m.p. 155°-157°: λmaxEtOH 238.5 nm (ε 23070), 340 nm (ε 2400), λinf 250 nm (ε 17160), 275 nm (ε 1780).
후처리
- customThe resulting solution was evaporated
- customthe residue triturated with water
- customThis product was purified by preparative thin-layer chromatography on silica before crystallisation from ethyl acetate
출처 및 근거
- ORD 기록
- ord-e03a08e39a184094a14204bdf2a65dc9
- 출처 데이터셋
- uspto-grants-1987_01
- 특허 번호
- US04636509
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