Morpholine → 4-(3-Chloro-6-methylpyrazin-2-yl)morpholine
반응식
[Cl:1][C:2]1[C:7](Cl)=[N:6][C:5]([CH3:9])=[CH:4][N:3]=1.[NH:10]1[CH2:15][CH2:14][O:13][CH2:12][CH2:11]1>CCOCC>[Cl:1][C:2]1[C:7]([N:10]2[CH2:15][CH2:14][O:13][CH2:12][CH2:11]2)=[N:6][C:5]([CH3:9])=[CH:4][N:3]=1참가 물질
4
실험 절차
16.3 g of 2,3-dichloro-5-methyl-pyrazine and 100 ml of morpholine are warmed to 100° C. for 6 hours. The reaction mixture is then diluted with 200 ml of ether and again extracted by shaking with water. The ether phase is dried over sodium sulphate and evaporated in a waterpump vacuum. The residue is distilled in a waterpump vacuum. 2-Chloro-3-morpholinyl-5-methyl-pyrazine, boiling point 166°-167° C./15 mm Hg, is thus obtained.
후처리
- extractionagain extracted
- dry with materialThe ether phase is dried over sodium sulphate
- customevaporated in a waterpump vacuum
- distillationThe residue is distilled in a waterpump vacuum
출처 및 근거
- ORD 기록
- ord-442bfea1f1c64e4ab0fe836cb66c86cd
- 출처 데이터셋
- uspto-grants-1983_10
- 특허 번호
- US04410530
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