Sodium hydride → HCID 53815443, compound

HRID 2225681Notes

Reaction equation

HRID 2225681 reaction equation
[CH3:1][O:2][C:3](=[O:13])[C:4](=[O:12])[C:5]1[CH:10]=[CH:9][C:8]([OH:11])=[CH:7][CH:6]=1.[H-].[Na+].S([O-])(=O)(=O)C.[C:21]1([S:27][CH2:28][CH2:29]O)[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1>CN(C)C=O>[CH3:1][O:2][C:3](=[O:13])[C:4](=[O:12])[C:5]1[CH:10]=[CH:9][C:8]([O:11][CH2:29][CH2:28][S:27][C:21]2[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=2)=[CH:7][CH:6]=1

Participants

6

Reactant 4

HCID 24758Sodium hydrideHCID 696852-(Phenylthio)ethanolHCID 85257MethanesulfonateHCID 3084696Benzeneacetic acid, 4-hydroxy-alpha-oxo-, methyl ester

Product 1

HCID 53815443HCID 53815443, compoundYield 39.3%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
60 °C

Procedure

A stirred mixture of 4-hydroxy-alpha-oxobenzeneacetic acid methyl ester (0.724 g) in dimethylformamide (10 mL) under argon was treated with 55% sodium hydride (0.175 g), stirred for 15 minutes and treated with the mesylate of 2-phenylthioethanol (1.16 g). The mixture was heated at 60° C. for five hours and worked up as in Example 20. The material was purified by HPLC (dichloromethane-hexane; 4:1) and crystallized from diethyl etherhexane to provide 0.5 g of alpha-oxo-4-[[2-(phenylthio)ethyl]oxy]benzeneacetic acid methyl ester, mp 49°-51° C.

Workup

  1. customThe material was purified by HPLC (dichloromethane-hexane; 4:1)
  2. customcrystallized from diethyl etherhexane

Sources & evidence

ORD record
ord-ff3a50bfdfe540f1aea9f284bfbf8916
Source dataset
uspto-grants-1994_09
Patent number
US05344843

Reaction notes

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