Acetic Anhydride → HCID 12803438, compound

HRID 2291132Notes

Reaction equation

HRID 2291132 reaction equation
[CH3:1][O:2][CH2:3][CH2:4][N:5]1[CH:9]=[C:8]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)[NH:7][C:6]1=[O:16].[C:17](OC(=O)C)(=[O:19])[CH3:18]>>[CH3:1][O:2][CH2:3][CH2:4][N:5]1[CH:9]=[C:8]([C:10]2[CH:15]=[CH:14][CH:13]=[CH:12][CH:11]=2)[N:7]([C:17](=[O:19])[CH3:18])[C:6]1=[O:16]

Participants

3

Reactant 2

HCID 7918Acetic AnhydrideHCID 12803422HCID 12803422, compound

Product 1

HCID 12803438HCID 12803438, compound

Procedure

Approximately 21.8 g of 1-(2-methoxyethyl)-4-phenyl-4-imidazolin-2-one and 120 ml. of acetic anhydride is refluxed together for four hours. The acetic anhydride is distilled out at reduced pressure. The residual semisolid is recrystallized from ether to yield the title compound as a white solid; m.p. 73°-75° C.

Workup

  1. distillationThe acetic anhydride is distilled out at reduced pressure
  2. customThe residual semisolid is recrystallized from ether

Sources & evidence

ORD record
ord-bc38f368800a46bfbbdf5bc88fd28e9a
Source dataset
uspto-grants-1986_10
Patent number
US04620009

Reaction notes

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