4-Amino-m-cresol → 1-(4-Hydroxy-2-methylphenyl)-2,3-dihydropyrrolo[3,2-c]-cinnoline hydrochloride
Reaction equation
[Cl:1][C:2]1[C:11]2[C:6](=[CH:7][CH:8]=[CH:9][CH:10]=2)[N:5]=[N:4][C:3]=1[CH2:12][CH2:13]Cl.[OH:15][C:16]1[CH:21]=[CH:20][C:19]([NH2:22])=[C:18]([CH3:23])[CH:17]=1>O1CCOCC1>[ClH:1].[OH:15][C:16]1[CH:21]=[CH:20][C:19]([N:22]2[C:2]3[C:11]4[CH:10]=[CH:9][CH:8]=[CH:7][C:6]=4[N:5]=[N:4][C:3]=3[CH2:12][CH2:13]2)=[C:18]([CH3:23])[CH:17]=1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
4-Chloro-3-(2-chloroethyl)cinnoline (1 g, 0.0044 mol) and 4-hydroxy-2-methylphenylamine (0.54 g, 0.0044 mol) in 1,4 dioxan (20 ml) were heated under reflux for 20 hours. The solid obtained was collected by filtration and dried. Recrystallization from ethanol gave the title compound, 0.4 g, m.p. >300°
Workup
- temperatureunder reflux for 20 hours
- customThe solid obtained
- filtrationwas collected by filtration
- customdried
- customRecrystallization from ethanol
Sources & evidence
- ORD record
- ord-a1afc8196a0f48aaa3b96050e5d8c96b
- Source dataset
- uspto-grants-1991_01
- Patent number
- US04988695
Reaction notes
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