Calcium Carbonate → HCID 70353199、化合物
反応式
[C:1]([C:9]1[C:17]2[O:16][CH:15]=[CH:14][C:13]=2[CH:12]=[C:11]([CH2:18][C:19]([OH:21])=[O:20])[CH:10]=1)(=[O:8])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[OH-].[K+].[C:24]([C:32]1[C:40]2[O:39][CH:38]=[CH:37][C:36]=2[CH:35]=[C:34]([CH2:41][C:42]([O-:44])=[O:43])[CH:33]=1)(=[O:31])[C:25]1[CH:30]=[CH:29][CH:28]=[CH:27][CH:26]=1.[K+].C(=O)([O-])[O-].[Ca+2:50].[Cl-].[NH4+].[Ca]>CO.Cl.O>[C:1]([C:9]1[C:17]2[O:16][CH:15]=[CH:14][C:13]=2[CH:12]=[C:11]([CH2:18][C:19]([O-:21])=[O:20])[CH:10]=1)(=[O:8])[C:2]1[CH:3]=[CH:4][CH:5]=[CH:6][CH:7]=1.[Ca+2:50].[C:24]([C:32]1[C:40]2[O:39][CH:38]=[CH:37][C:36]=2[CH:35]=[C:34]([CH2:41][C:42]([O-:44])=[O:43])[CH:33]=1)(=[O:31])[C:25]1[CH:26]=[CH:27][CH:28]=[CH:29][CH:30]=1参加物
実験手順
To a solution of 200 mg of 7-benzoylbenzofuran-5-ylacetic acid in 5 ml of methanol is added a 1 molar equivalent of potassium hydroxide in the form of a 0.1N solution, thus, yielding a solution containing potassium 7-benzoylbenzofuran-5-ylacetate. A solution of 60 mg of calcium carbonate dissolved in the minimum amount of 1N hydrochloric acid necessary to effect solution of the calcium carbonate is buffered with 150 mg of solid ammonium chloride followed by the addition of 5 ml of water. The thus obtained buffered calcium solution is then added to the solution of potassium 7-benzoylbenzofuran-5-ylacetate and the precipitate which forms is collected by filtration, washed with water and air dried to yield calcium 7-benzoylbenzofuran-5-ylacetate.
後処理
- customthus, yielding a solution
- customThe thus obtained
- filtrationthe precipitate which forms is collected by filtration
- washwashed with water and air
- customdried
出典と根拠
- ORDレコード
- ord-dba6f3010fb043a098a32a851544e2f2
- 出典データセット
- uspto-grants-1988_10
- 特許番号
- US04780480
反応ノート
読み込み中…