2,5-Hexanedione → 2-chloro-4-(2,5-dimethyl-1H-pyrrol-1-yl)benzenol
Reaction equation
[CH2:1]([CH2:5][C:6](=O)[CH3:7])[C:2]([CH3:4])=O.[NH2:9][C:10]1[CH:15]=[CH:14][C:13]([OH:16])=[C:12]([Cl:17])[CH:11]=1>>[Cl:17][C:12]1[CH:11]=[C:10]([N:9]2[C:6]([CH3:7])=[CH:5][CH:1]=[C:2]2[CH3:4])[CH:15]=[CH:14][C:13]=1[OH:16]Participants
3
Procedure
Utilizing the general procedure outlined in EXAMPLE 1, acetonyl acetone (0.83 mL, 7.0 mmol) and 4-amino-2-chlorophenol (1.0 g, 7.0 mmol) reacted to give 1-(3-chloro-4-hydroxyphenyl)-2,5-dimethylpyrrole as a brown solid: 1H NMR (CDCl3, 500 MHz) δ 7.22 (d, 1H), 7.10 (d, 1H), 7.05 (dd, 1H), 5.88 (s, 2H), 5.66 (br s, 1H), 2.03 (s, 6H); MS (ESI) 222 (M+H)+.
Workup
- customreacted
Sources & evidence
- ORD record
- ord-e4d858a8e7694ce38ca4b4f5f526bcb5
- Source dataset
- uspto-grants-2008_12
- Patent number
- US07465730B2
Reaction notes
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