Veratrole → 4-(3,4-Dimethoxybenzoyl)-5-ethyl-2-imidazolidinone
Reaction equation
[CH2:1]([CH:3]1[CH:7]([C:8]([OH:10])=O)[NH:6][C:5](=[O:11])[NH:4]1)[CH3:2].[CH3:12][O:13][C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][C:15]=1[O:20][CH3:21]>>[CH3:12][O:13][C:14]1[CH:19]=[C:18]([CH:17]=[CH:16][C:15]=1[O:20][CH3:21])[C:8]([CH:7]1[CH:3]([CH2:1][CH3:2])[NH:4][C:5](=[O:11])[NH:6]1)=[O:10]Participants
3
Conditions
- Temperature
- 100 °C
Procedure
In 100 g PPA are suspended 15.8 g 4-ethyl-2-oxoimidazolidine-5-carboxylic acid and 13.8 g 1,2-dimethoxybenzene. The mixture is rapidly stirred and heated for 5 hours at 100° C. The reaction mixture is quenched with water and the product separates as a solid. The solid is collected and washed with water and dried. Purification is effected by chromatography over silica gel.
Workup
- customThe reaction mixture is quenched with water
- customThe solid is collected
- washwashed with water
- customdried
- customPurification
Sources & evidence
- ORD record
- ord-fa1bad0c5c654454b1385555b3940788
- Source dataset
- uspto-grants-1983_10
- Patent number
- US04410540
Reaction notes
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