Methylparaben → Bis[4-(methoxycarbonyl)phenyl] butanedioate
Reaction equation
[CH3:1][O:2][C:3]([C:5]1[CH:6]=[CH:7][C:8]([OH:11])=[CH:9][CH:10]=1)=[O:4].[C:12](Cl)(=[O:18])[CH2:13][CH2:14][C:15](Cl)=[O:16]>>[CH3:1][O:2][C:3]([C:5]1[CH:10]=[CH:9][C:8]([O:11][C:12](=[O:18])[CH2:13][CH2:14][C:15]([O:11][C:8]2[CH:7]=[CH:6][C:5]([C:3]([O:2][CH3:1])=[O:4])=[CH:10][CH:9]=2)=[O:16])=[CH:7][CH:6]=1)=[O:4]Participants
3
Procedure
A similar procedure to Example 1 is carried out by using 15.2 g of methyl p-hydroxybenzoate and 7.8 g of succinic dichloride to yield di(p-methyloxycarbonylphenyl)succinate, m.p. 189.5°-190° C., as white crystals.
Sources & evidence
- ORD record
- ord-a6a23a7d99754595ba19915d197090de
- Source dataset
- uspto-grants-1987_12
- Patent number
- US04713474
Reaction notes
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