반응식
Cl.[Cl:2][C:3]1[CH:12]=[C:11]2[C:6]([C:7]([N:13]([C:17]3[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[CH:19][CH:18]=3)[N:14]=CC)=[N:8][CH:9]=[N:10]2)=[CH:5][CH:4]=1.Cl>C(O)C>[Cl:2][C:3]1[CH:12]=[C:11]2[C:6]([C:7]([N:13]([C:17]3[CH:22]=[CH:21][C:20]([O:23][CH3:24])=[CH:19][CH:18]=3)[NH2:14])=[N:8][CH:9]=[N:10]2)=[CH:5][CH:4]=1참가 물질
4
실험 절차
A suspension of acetaldehyde N1 -(7-chloroquinazolin-4-yl)-p-methoxyphenylhydrazone hydrochloride (15.0g.) in ethanol (120ml.; dried over magnesium ethoxide) was cooled and stirred at 5°-10° C for 3 hrs. during the passage of dry hydrogen chloride. The mixture was then left at 0°-5° C. for 3 days before separation by filtration. The solid was washed with dry ether (10ml.), and then dissolved in a mixture of water (30ml.), saturated sodium acetate solution (5ml.) and ethyl acetate (25ml.). The aqueous layer was extracted with more ethyl acetate (2 × 15ml.), and the extracts washed with water (20ml.), dried (Na2SO4) and evaporated to give N1 -(7-chloroquinazolin-4-yl)-p-methoxyphenylhydrazine, m.p. 124°-127° C.
후처리
- temperaturewas cooled
- waitThe mixture was then left at 0°-5° C. for 3 days before separation by filtration
- washThe solid was washed with dry ether (10ml.)
- dissolutiondissolved in a mixture of water (30ml.), saturated sodium acetate solution (5ml.) and ethyl acetate (25ml.)
- extractionThe aqueous layer was extracted with more ethyl acetate (2 × 15ml.)
- washthe extracts washed with water (20ml.)
- dry with materialdried (Na2SO4)
- customevaporated
출처 및 근거
- ORD 기록
- ord-5bc2e9d69aee48f691891766db751553
- 출처 데이터셋
- uspto-grants-1977_03
- 특허 번호
- US04012513
연결된 노트
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