Ethyl-2,3-epoxy-3-(4-benzyloxyphenyl)propionate → 3-(4-Benzyloxyphenyl)-2-hydroxypropionic acid ethyl ester

HRID 1354879ノート

反応式

HRID 1354879 の反応式
[CH2:1]([O:3][C:4](=[O:22])[CH:5]1[O:21][CH:6]1[C:7]1[CH:12]=[CH:11][C:10]([O:13][CH2:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)=[CH:9][CH:8]=1)[CH3:2].[H][H]>[Pd].O1CCOCC1>[OH:21][CH:5]([CH2:6][C:7]1[CH:12]=[CH:11][C:10]([O:13][CH2:14][C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=2)=[CH:9][CH:8]=1)[C:4]([O:3][CH2:1][CH3:2])=[O:22]

参加物

5

反応物 2

HCID 11277925Ethyl-2,3-epoxy-3-(4-benzyloxyphenyl)propionate2 回HCID 178418361HCID 178418361、化合物

生成物 1

HCID 151861533-(4-Benzyloxyphenyl)-2-hydroxypropionic acid ethyl ester収率 80%

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 312751,4-Dioxane溶媒

実験手順

A mixture of ethyl-2,3-epoxy-3-(4-benzyloxyphenyl)propionate of the formula (9) (125 g) obtained according to the procedure described in step (ii) above, 5% Pd/C catalyst (12.5 g) and 1,4-dioxane (750 ml) was hydrogenated at room temperature at 5–10 psi of hydrogen pressure for a period of 10–15 h. The progress of the reaction was monitored by TLC. After completion of the reaction, the catalyst was filtered and the solvent was removed under reduced pressure to afford the title compound of the formula (10) (100–105 g, 80–83%).

後処理

  1. customobtained
  2. customAfter completion of the reaction
  3. filtrationthe catalyst was filtered
  4. customthe solvent was removed under reduced pressure

出典と根拠

ORDレコード
ord-640d49268bdd43fe89f65387505440d5
出典データセット
uspto-grants-2007_05
特許番号
US07223881B2

反応ノート

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