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

HRID 914331Notes

Reaction equation

HRID 914331 reaction equation
[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].[I: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(OCC)=O)(C(OCC)=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]([I:20])=[CH:22][CH:23]=2)[N:15]=1)([CH3:9])[CH3:8])([CH3:2])([CH3:4])[CH3:3]

Participants

6

Reactant 4

HCID 108944-IodophenolHCID 11776TriphenylphosphineHCID 14357405DiethyldiazodicarboxylateHCID 597593522-{[4-(2-Hydroxyethyl)-1,3-thiazol-2-yl]thio}-2-methylpropionic acid tert-butyl ester

Product 1

HCID 597590802-({4-[2-(4-Iodophenoxy)ethyl]-1,3-thiazol-2-yl}thio)-2-methylpropionic acid tert-butyl esterYield 64.3%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Procedure

2-{[4-(2-Hydroxyethyl)-1,3-thiazol-2-yl]thio}-2-methylpropionic acid tert-butyl ester (7.0 g) synthesized in Example 4 and 4-iodophenol (5.08 g) were dissolved in tetrahydrofuran (100 mL), triphenylphosphine (6.06 g) and diethyl diazodicarboxylate (4.02 g) were added under ice-cooling, and the mixture was stirred at room temperature for 8 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 give the title compound (7.5 g) as a colorless oil.

Workup

  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)

Sources & evidence

ORD record
ord-9a7a893891f74787a88a17d3ff5deb8f
Source dataset
uspto-grants-2011_09
Patent number
US08026370B2

Reaction notes

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