Ammonium Chloride → 4-Isopropyl-6-[4-(1-methyl-1H-indol-5-yl)-5-phenylamino-4H-[1,2,4]triazol-3-yl]-benzene-1,3-diol

HRID 1500654Notes

Reaction equation

[CH:1]([C:4]1[C:5]([O:34]C)=[CH:6][C:7]([O:32]C)=[C:8]([C:10]2[N:11]([C:22]3[CH:23]=[C:24]4[C:28](=[CH:29][CH:30]=3)[N:27]([CH3:31])[CH:26]=[CH:25]4)[C:12]([NH:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)=[N:13][N:14]=2)[CH:9]=1)([CH3:3])[CH3:2].[Cl-].[NH+]1C=CC=CC=1.[Cl-].[NH4+]>ClCCl>[CH:1]([C:4]1[CH:9]=[C:8]([C:10]2[N:11]([C:22]3[CH:23]=[C:24]4[C:28](=[CH:29][CH:30]=3)[N:27]([CH3:31])[CH:26]=[CH:25]4)[C:12]([NH:15][C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)=[N:13][N:14]=2)[C:7]([OH:32])=[CH:6][C:5]=1[OH:34])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 210 °C

Procedure

A flask was charged with [5-(5-Isopropyl-2,4-dimethoxy-phenyl)-4-(1-methyl-1H-indol-5-yl)-4H-[1,2,4]triazol-3-yl]-phenyl-amine (27 mg; 0.06 mmol) and pyridinium chloride (2 g.). The reactants were placed under a nitrogen atmosphere, and the reaction was heated to 210° C. for 25 minutes. To the cooled reaction mixture was added dichloromethane and saturated ammonium chloride solution. The organic fraction was isolated, and the product was purified by column chromatography to give 4-Isopropyl-6-[4-(1-methyl-1H-indol-5-yl)-5-phenylamino-4H-[1,2,4]triazol-3-yl]-benzene-1,3-diol (18 mg; 0.04 mmol.)

Workup

customTo the cooled reaction mixture
customThe organic fraction was isolated
customthe product was purified by column chromatography

Sources & evidence

ORD record: ord-5609e872100945f6b6af4a7188774ac1
Source dataset: uspto-grants-2015_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09206162B2

Reaction notes

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