HCID 14650456、化合物 → HCID 14650449、化合物

HRID 1200193ノート

反応式

HRID 1200193 の反応式
[C:1]1([C:7]2[O:8][C:9]3[C:17]([CH2:18][C:19]([O:21]CC)=[O:20])=[CH:16][CH:15]=[CH:14][C:10]=3[C:11](=[O:13])[CH:12]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH:2]=1>C(O)(=O)C.O>[C:1]1([C:7]2[O:8][C:9]3[C:17]([CH2:18][C:19]([OH:21])=[O:20])=[CH:16][CH:15]=[CH:14][C:10]=3[C:11](=[O:13])[CH:12]=2)[CH2:6][CH2:5][CH2:4][CH2:3][CH:2]=1

参加物

4

反応物 1

HCID 14650456HCID 14650456、化合物

生成物 1

HCID 14650449HCID 14650449、化合物収率 68%

試薬・触媒・溶媒 2

HCID 176Acetic Acid溶媒HCID 962Water溶媒

実験手順

Ethyl [2-(1-cyclohexenyl)-4-oxo-4H-[1]-benzopyran-8-yl]acetate (2.5 g) was dissolved in acetic acid (35 ml) and to the solution was added 50% sulfulic acid (30 ml). The mixture was relfuxed for 4 hours. The reaction mixture was diluted with water and crystals deposited were filtered off and recrystallized from the mixed solvent of ethyl acetate and methanol to obtain the title compound, yield 68%.

後処理

  1. filtrationdeposited were filtered off
  2. customrecrystallized from the mixed solvent of ethyl acetate and methanol

出典と根拠

ORDレコード
ord-86bfc59aafc7461d8d9bfb6f89c8fc53
出典データセット
uspto-grants-1990_02
特許番号
US04904690

反応ノート

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