Sodium Bicarbonate → 2-carboxy-8-(4-(quinolin-2-ylmethoxy)phenoxymethyl)-4-oxo-4H-1-benzopyran

HRID 1090786ノート

反応式

HRID 1090786 の反応式
[C:1]([C:6]1[O:7][C:8]2[C:16]([CH2:17][O:18][C:19]3[CH:24]=[CH:23][C:22]([O:25][CH2:26][C:27]4[CH:36]=[CH:35][C:34]5[C:29](=[CH:30][CH:31]=[CH:32][CH:33]=5)[N:28]=4)=[CH:21][CH:20]=3)=[CH:15][CH:14]=[CH:13][C:9]=2[C:10](=[O:12])[CH:11]=1)([O:3]CC)=[O:2].C(=O)(O)[O-].[Na+]>C(O)C.O>[C:1]([C:6]1[O:7][C:8]2[C:16]([CH2:17][O:18][C:19]3[CH:20]=[CH:21][C:22]([O:25][CH2:26][C:27]4[CH:36]=[CH:35][C:34]5[C:29](=[CH:30][CH:31]=[CH:32][CH:33]=5)[N:28]=4)=[CH:23][CH:24]=3)=[CH:15][CH:14]=[CH:13][C:9]=2[C:10](=[O:12])[CH:11]=1)([OH:3])=[O:2]

参加物

5

反応物 2

HCID 516892Sodium BicarbonateHCID 19913843HCID 19913843、化合物

生成物 1

HCID 148423732-carboxy-8-(4-(quinolin-2-ylmethoxy)phenoxymethyl)-4-oxo-4H-1-benzopyran収率 61.7%

試薬・触媒・溶媒 2

HCID 702Ethanol溶媒HCID 962Water溶媒

実験手順

0.74 g of 2-carboethoxy-8-(4-(quinoline-2-ylmethoxy)phenoxymethyl)-4-oxo-4H-1-benzopyran and 0.7 g sodium bicarbonate are combined in 50 ml of ethanol and 5 ml of water. After refluxing for 1.5 hours the mixture is concentrated and the residue diluted with ether. The resulting solid is collected, suspended in water and the pH adjusted to 6 with 1 molar hydrochloric acid. The resulting solid is crystallized from aqueous acetic acid, then tetrahydrofuran/hexane to give 0.43 g 2-carboxy-8-(4- (quinolin-2-ylmethoxy)phenoxymethyl)-4-oxo-4H-1-benzopyran; m.p. 221°-24° C.

後処理

  1. temperatureAfter refluxing for 1.5 hours the mixture
  2. concentrationis concentrated
  3. additionthe residue diluted with ether
  4. customThe resulting solid is collected
  5. customThe resulting solid is crystallized from aqueous acetic acid

出典と根拠

ORDレコード
ord-d50b8d91f5c4412b8e38e27725015535
出典データセット
uspto-grants-1992_01
特許番号
US05082849

反応ノート

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