Acetic Anhydride → HCID 19095933、化合物
反応式
[OH:1][C:2]1[C:7]2=[CH:8][C:9]3[C:14]([N:6]2[CH2:5][CH:4]([C:15]([O:17][CH2:18][CH3:19])=[O:16])[C:3]=1[C:20]([O:22][CH2:23][CH3:24])=[O:21])=[CH:13][CH:12]=[CH:11][CH:10]=3.[C:25](OC(=O)C)(=[O:27])[CH3:26]>N1C=CC=CC=1>[C:25]([O:1][C:2]1[C:7]2=[CH:8][C:9]3[C:14]([N:6]2[CH2:5][CH:4]([C:15]([O:17][CH2:18][CH3:19])=[O:16])[C:3]=1[C:20]([O:22][CH2:23][CH3:24])=[O:21])=[CH:13][CH:12]=[CH:11][CH:10]=3)(=[O:27])[CH3:26]参加物
4
実験手順
From a mixture of 29.3 g of diethyl 6,7-dihydro-9-hydroxypyrido[1,2-a]indole-7,8-dicarboxylate, 100 ml of pyridine and 30 ml of acetic anhydride, the solvents were removed under reduced pressure and the residue was partitioned between ethyl acetate and 2M hydrochloric acid. The organic extract was washed with saturated sodium bicarbonate solution and water, dried and evaporated to give 33 g of diethyl 9-acetoxy-6,7-dihydropyrido[1,2-a]indole-7,8-dicarboxylate.
後処理
- customthe solvents were removed under reduced pressure
- customthe residue was partitioned between ethyl acetate and 2M hydrochloric acid
- extractionThe organic extract
- washwas washed with saturated sodium bicarbonate solution and water
- customdried
- customevaporated
出典と根拠
- ORDレコード
- ord-f40ad0f0844745faa02dbe3e7719ce53
- 出典データセット
- uspto-grants-1994_03
- 特許番号
- US05292747
反応ノート
読み込み中…