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4-Bromophenol → 2-({4-[2-(4-Bromophenoxy)ethyl]-1,3-thiazol-2-yl}thio)-2-methylpropionic acid tert-butyl ester

HRID 914304
ノート
印刷プレビュー

反応式

HRID 914304 の反応式
[C:1]([O:5][C:6](=[O:19])[C:7]([S:10][C:11]1[S:12][CH:13]=[C:14]([CH2:16][CH2:17][OH:18])[N:15]=1)([CH3:9])[CH3:8])([CH3:4])([CH3:3])[CH3:2].[Br:20][C:21]1[CH:26]=[CH:25][C:24](O)=[CH:23][CH:22]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.[N+](C(OC(C)C)=O)(C(OC(C)C)=O)=[N-]>O1CCCC1>[C:1]([O:5][C:6](=[O:19])[C:7]([S:10][C:11]1[S:12][CH:13]=[C:14]([CH2:16][CH2:17][O:18][C:24]2[CH:25]=[CH:26][C:21]([Br:20])=[CH:22][CH:23]=2)[N:15]=1)([CH3:9])[CH3:8])([CH3:2])([CH3:4])[CH3:3]
参加物実験手順後処理出典と根拠反応ノート

参加物

6

反応物 4

HCID 78084-BromophenolHCID 11776TriphenylphosphineHCID 22145704Diisopropyl diazodicarboxylateHCID 597593522-{[4-(2-Hydroxyethyl)-1,3-thiazol-2-yl]thio}-2-methylpropionic acid tert-butyl ester

生成物 1

HCID 597593362-({4-[2-(4-Bromophenoxy)ethyl]-1,3-thiazol-2-yl}thio)-2-methylpropionic acid tert-butyl ester収率 74.4%

試薬・触媒・溶媒

1
HCID 8028Tetrahydrofuran溶媒

実験手順

2-{[4-(2-Hydroxyethyl)-1,3-thiazol-2-yl]thio}-2-methylpropionic acid tert-butyl ester (3.077 g) synthesized in Example 4 and 4-bromophenol (1.75 g) were dissolved in tetrahydrofuran (50 mL), triphenylphosphine (3.20 g) and diisopropyl diazodicarboxylate (40% toluene solution, 6.54 ml) were added under ice-cooling, and the mixture was stirred at room temperature for 12 hr. The reaction mixture was concentrated under reduced pressure, and the residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=10:1 to 5:1) to give the title compound (3.45 g) as a colorless oil.

後処理

  1. temperaturecooling
  2. concentrationThe reaction mixture was concentrated under reduced pressure
  3. customthe residue was purified by silica gel chromatography (elution solvent; hexane:ethyl acetate=10:1 to 5:1)

出典と根拠

ORDレコード
ord-95931ae4a31c4039959ae61d93f9ec88
出典データセット
uspto-grants-2011_09
DOI
10.6084/m9.figshare.5104873.v1
特許番号
US08026370B2

反応ノート

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