Sodium Hydroxide → HCID 20130662、化合物
反応式
[Cl:1][C:2]1[CH:12]=[CH:11][C:10]([N:13]2[C:22](=[O:23])[C:21]3[CH2:20][CH2:19][CH2:18][CH2:17][C:16]=3[N:15]([CH3:24])[C:14]2=[O:25])=[CH:9][C:3]=1[C:4]([O:6]CC)=[O:5].[OH-].[Na+]>C(O)C.O>[Cl:1][C:2]1[CH:12]=[CH:11][C:10]([N:13]2[C:22](=[O:23])[C:21]3[CH2:20][CH2:19][CH2:18][CH2:17][C:16]=3[N:15]([CH3:24])[C:14]2=[O:25])=[CH:9][C:3]=1[C:4]([OH:6])=[O:5]参加物
5
実験手順
A solution of 3.6 g of ethyl 2-chloro-5-[1,4,5,6,7,8-hexahydro-1-methyl-2,4-dioxo-3(2H)-quinazolinyl]-benzoate in 70 ml of ethanol is held at 60° C. for 10 minutes with 0.6 g of sodium hydroxide in 70 ml of water and subsequently stirred for 1 hour. The solution is substantially evaporated down under reduced pressure and the residue is brought to pH 1 with 2N hydrochloric acid. The precipatate is shaken five times with 50 ml amounts of diethyl ether and the organic phases are dried over anhydrous sodium sulphate and evaporated to dryness under reduced pressure. 2-Chloro-5-[1,4,5,6,7,8-hexahydro-1-methyl-2,4-dioxo-3(2H)-quinazolinyl]-benzoic acid is obtained.
後処理
- customThe solution is substantially evaporated down under reduced pressure
- stirringThe precipatate is shaken five times with 50 ml amounts of diethyl ether
- dry with materialthe organic phases are dried over anhydrous sodium sulphate
- customevaporated to dryness under reduced pressure
出典と根拠
- ORDレコード
- ord-25b81acac29443d7aeee167816b3c817
- 出典データセット
- uspto-grants-1988_07
- 特許番号
- US04760163
反応ノート
読み込み中…