Sodium Chloride → HCID 54092158, compound

HRID 2051278Notes

Reaction equation

HRID 2051278 reaction equation
[S:1]1[CH:5]=[CH:4][CH:3]=[C:2]1[CH:6]=O.[CH3:8][C:9]1([CH3:16])[C:13](=[O:14])[CH:12]=[C:11]([CH3:15])[O:10]1.[OH-].[Na+].[Cl-].[Na+]>C(O)C>[CH3:8][C:9]1([CH3:16])[C:13](=[O:14])[CH:12]=[C:11]([CH:15]=[CH:6][C:2]2[S:1][CH:5]=[CH:4][CH:3]=2)[O:10]1

Participants

6

Reactant 4

HCID 5234Sodium ChlorideHCID 73642-ThiophenecarboxaldehydeHCID 14798Sodium HydroxideHCID 1370803(2H)-Furanone, 2,2,5-trimethyl-

Product 1

HCID 54092158HCID 54092158, compoundYield 43%

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

To a solution of 2-thiophenecarboxaldehyde (2.1 g, 19 mM) and 2,2,5-trimethyl-3(2H)-furanone (2.0 g, 15.9 mM) in ethanol (100 mL), was added 1N aqueous sodium hydroxide (1.6 mL, 1.6 mM). The reaction solution was stirred at room temperature for one day. After saturated aqueous sodium chloride (400 mL) was added, the aqueous layer was extracted with diethyl ether (3×100 mL). The combined ethereal extracts were washed with saturated aqueous sodium chloride (50 mL), dried over MgSO4, filtered and concentrated to give a yellow solid. The product was recrystallized from hexane to afford a yellow crystalline solid (1.5 g, 43% yield), m.p. 75°-77° C.

Workup

  1. extractionthe aqueous layer was extracted with diethyl ether (3×100 mL)
  2. washThe combined ethereal extracts were washed with saturated aqueous sodium chloride (50 mL)
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated
  6. customto give a yellow solid
  7. customThe product was recrystallized from hexane

Sources & evidence

ORD record
ord-2249f80b1e8a4e8fb66bd114501d5206
Source dataset
uspto-grants-1991_05
Patent number
US05017601

Reaction notes

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