Sodium Hydroxide → HCID 20130662、化合物

HRID 845964ノート

反応式

HRID 845964 の反応式
[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

  1. customThe solution is substantially evaporated down under reduced pressure
  2. stirringThe precipatate is shaken five times with 50 ml amounts of diethyl ether
  3. dry with materialthe organic phases are dried over anhydrous sodium sulphate
  4. 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

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