Sodium hydride → 2-[4-(Benzyloxy)phenyl]oxirane

HRID 75146

Reaction equation

HRID 75146 reaction equation
[H-].[Na+].[I-].[CH3:4][S+](C)(C)=O.[CH2:9]([O:16][C:17]1[CH:24]=[CH:23][C:20]([CH:21]=[O:22])=[CH:19][CH:18]=1)[C:10]1[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=1>CS(C)=O.C1COCC1>[CH2:9]([O:16][C:17]1[CH:18]=[CH:19][C:20]([CH:21]2[CH2:4][O:22]2)=[CH:23][CH:24]=1)[C:10]1[CH:11]=[CH:12][CH:13]=[CH:14][CH:15]=1

Participants

6

Reactant 3

HCID 24758Sodium hydrideHCID 74498Sulfoxonium, trimethyl-, iodide (1:1)HCID 78109Benzaldehyde, 4-(phenylmethoxy)-

Product 1

HCID 132487172-[4-(Benzyloxy)phenyl]oxirane

Reagents, catalysts & solvents 2

HCID 679Dimethyl SulfoxideSolventHCID 8028TetrahydrofuranSolvent

Procedure

NaH (60%, 0.5 g, 23.6 mmol) was diluted in DMSO (50 mL) and stirred for 30 min at rt under nitrogen. Trimethylsulfoxonium iodide (7.8 g, 35.37 mmol) was added in portions at 0° C. The reaction mixture was stirred for 1 h. Then a solution of 4-benzyloxybenzaldehyde (5 g, 23.58 mmol) in THF (15 mL) was added. The reaction solution was stirred at rt for 3 h. The reaction mixture was poured into ice-water and extracted with ether. The organic layer was dried over Na2SO4 and concentrated to give 2-(4-(benzyloxy)phenyl)oxirane, which was used for the next step without further purification.

Workup

  1. stirringThe reaction mixture was stirred for 1 h
  2. stirringThe reaction solution was stirred at rt for 3 h
  3. extractionextracted with ether
  4. dry with materialThe organic layer was dried over Na2SO4
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-f83472feade14f389d273c03cc1e6dd5
Source dataset
uspto-grants-2014_09
Patent number
US08835426B2

Linked notes

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