Ethyl 2-[4-(2-benzyloxyethyl)phenoxy]-2-methylpropionate → Ethyl 2-[4-(2-hydroxy-ethyl)-phenoxy]-2-methyl-propionate

HRID 2121845ノート

反応式

HRID 2121845 の反応式
C([O:8][CH2:9][CH2:10][C:11]1[CH:25]=[CH:24][C:14]([O:15][C:16]([CH3:23])([CH3:22])[C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:13][CH:12]=1)C1C=CC=CC=1>C(O)C.[Pd]>[OH:8][CH2:9][CH2:10][C:11]1[CH:12]=[CH:13][C:14]([O:15][C:16]([CH3:22])([CH3:23])[C:17]([O:19][CH2:20][CH3:21])=[O:18])=[CH:24][CH:25]=1

参加物

4

反応物 1

HCID 15453494Ethyl 2-[4-(2-benzyloxyethyl)phenoxy]-2-methylpropionate

生成物 1

HCID 15229879Ethyl 2-[4-(2-hydroxy-ethyl)-phenoxy]-2-methyl-propionate収率 87.7%

試薬・触媒・溶媒 2

HCID 23938Palladium触媒HCID 702Ethanol溶媒

実験手順

To a solution of ethyl 2-[4-(2-benzyloxyethyl)phenoxy]-2-methylpropionate (480 mg) in ethanol (3.0 ml) was added 10% palladium on activated carbon (30 mg), and the mixture was stirred for 48 hours at room temperature under a hydrogen atmosphere. The catalyst was filtered off, and the solvent of the filtrate was removed under reduced pressure. Purification of the residue by medium pressure liquid column chromatography on silica gel (eluent:hexane/diethyl ether=1/1) gave ethyl 2-[4-(2-hydroxyethyl)phenoxy]-2-methylpropionate (310 mg).

後処理

  1. filtrationThe catalyst was filtered off
  2. customthe solvent of the filtrate was removed under reduced pressure
  3. customPurification of the residue by medium pressure liquid column chromatography on silica gel (eluent:hexane/diethyl ether=1/1)

出典と根拠

ORDレコード
ord-99d99ac2bd1e4ab6b09a18edc5e1833e
出典データセット
uspto-grants-2004_02
特許番号
US06696489B1

反応ノート

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