Hydrochloric Acid → 1,2,3,9-Tetrahydro-3-[(5-methyl-1H-imidazol-4-yl)methyl]-9-methyl-4H-carbazol-4-one hydrochloride monohydrate
Reaction equation
[CH3:1][C:2]1[NH:6][CH:5]=[N:4][C:3]=1[CH2:7][CH:8]1[C:20](=[O:21])[C:19]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[N:12]([CH3:22])[C:11]=2[CH2:10][CH2:9]1.[ClH:23]>>[OH2:21].[ClH:23].[CH3:1][C:2]1[NH:6][CH:5]=[N:4][C:3]=1[CH2:7][CH:8]1[C:20](=[O:21])[C:19]2[C:18]3[C:13](=[CH:14][CH:15]=[CH:16][CH:17]=3)[N:12]([CH3:22])[C:11]=2[CH2:10][CH2:9]1Participants
3
Procedure
A suspension of 1,2,3,9-tetrahydro-3-[(5-methyl-1H-imidazol-4-yl)methyl]-9-methyl-4H-carbazol-4-one (20 g) in IMS (200 ml) was heated to boiling and 2N hydrochloric acid (50 ml) was added. The resulting solution was allowed to cool to 20°, the resultant suspension was stirred for 1 h and then cooled at 4° for 2 h. The product was filtered off and dried in vacuo at 55° to yield the title compound (20.8 g), m.p. 290° (decomp.).
Workup
- additionwas added
- temperatureto cool to 20°
- temperaturecooled at 4° for 2 h
- filtrationThe product was filtered off
- customdried in vacuo at 55°
Sources & evidence
- ORD record
- ord-8522def93a83470bba1226cca4071fec
- Source dataset
- uspto-grants-1989_08
- Patent number
- US04859662
Reaction notes
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