Oxalic Acid → HCID 21423889, compound
Reaction equation
[C:1]([OH:6])(=[O:5])[C:2]([OH:4])=[O:3].[CH:7]1([S:13][CH:14]([CH2:21][S:22][CH:23]2[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]2)[CH2:15][N:16]2[CH:20]=[CH:19][N:18]=[CH:17]2)[CH2:12][CH2:11][CH2:10][CH2:9][CH2:8]1>>[C:1]([OH:6])(=[O:5])[C:2]([OH:4])=[O:3].[CH:7]1([S:13][CH:14]([CH2:21][S:22][CH:23]2[CH2:28][CH2:27][CH2:26][CH2:25][CH2:24]2)[CH2:15][N:16]2[CH:20]=[CH:19][N:18]=[CH:17]2)[CH2:8][CH2:9][CH2:10][CH2:11][CH2:12]1Participants
3
Procedure
Oxalic acid is added dropwise to a stirred solution of 3.2 g. of 1-[2',3'-bis(cyclohexylthio)propyl]imidazole in 300 ml. of anhydrous ether until precipitation is complete. The product is filtered off, washed with ether, air dried and recrystallized from ethyl acetate to yield 1-[2',3'-bis(cyclohexylthio)propyl]imidazole oxalate, m.p. 85.5°-88.5° C.
Workup
- customof anhydrous ether until precipitation
- filtrationThe product is filtered off
- washwashed with ether, air
- customdried
- customrecrystallized from ethyl acetate
Sources & evidence
- ORD record
- ord-285fa3e8b6994c05a7dbc8d49a31c4f1
- Source dataset
- uspto-grants-1977_07
- Patent number
- US04036974
Reaction notes
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