Oxalic Acid → 2-[4-(4-Isopropoxymethyl-benzyl)-phenyl]-imidazoline oxalate
Reaction equation
[C:1]([OH:6])(=[O:5])[C:2]([OH:4])=[O:3].[CH:7]([O:10][CH2:11][C:12]1[CH:29]=[CH:28][C:15]([CH2:16][C:17]2[CH:22]=[CH:21][C:20]([C:23]3[NH:24][CH2:25][CH2:26][N:27]=3)=[CH:19][CH:18]=2)=[CH:14][CH:13]=1)([CH3:9])[CH3:8]>>[C:1]([OH:6])(=[O:5])[C:2]([OH:4])=[O:3].[CH:7]([O:10][CH2:11][C:12]1[CH:29]=[CH:28][C:15]([CH2:16][C:17]2[CH:22]=[CH:21][C:20]([C:23]3[NH:27][CH2:26][CH2:25][N:24]=3)=[CH:19][CH:18]=2)=[CH:14][CH:13]=1)([CH3:9])[CH3:8]Participants
3
Procedure
Oxalic acid (129 mg, 1.43 mmol) was added to 2-[4-(4-isopropoxymethyl-benzyl)-phenyl]-imidazoline and recrystallized from acetone to give 2-[4-(4-isopropoxymethyl-benzyl)-phenyl]-imidazoline oxalate (507 mg) as a white crystalline solid, m.p. 156.3-156.7° C.; Analysis for C20H25N3O.C2H2O4: Calc.: C, 63.91; H, 6.58; N, 10.16; Found: C, H, 6.53; N, 10.24.
Workup
- customrecrystallized from acetone
Sources & evidence
- ORD record
- ord-58b62d0d93ba4443991848ff41571bbb
- Source dataset
- uspto-grants-2001_02
- Patent number
- US06184242B2
Reaction notes
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