Benzoyl chloride → Phenyl-{5-[2,2,2-trifluoro-1-hydroxy-1-(1-methyl-1H-indol-3-yl)ethyl]indazol-1-yl}methanone

HRID 244416Notes

Reaction equation

[F:1][C:2]([F:25])([F:24])[C:3]([C:15]1[CH:16]=[C:17]2[C:21](=[CH:22][CH:23]=1)[NH:20][N:19]=[CH:18]2)([C:5]1[C:13]2[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=2)[N:7]([CH3:14])[CH:6]=1)[OH:4].[C:26](Cl)(=[O:33])[C:27]1[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1>N1C=CC=CC=1.CCOCC.O>[C:27]1([C:26]([N:20]2[C:21]3[C:17](=[CH:16][C:15]([C:3]([OH:4])([C:5]4[C:13]5[C:8](=[CH:9][CH:10]=[CH:11][CH:12]=5)[N:7]([CH3:14])[CH:6]=4)[C:2]([F:1])([F:24])[F:25])=[CH:23][CH:22]=3)[CH:18]=[N:19]2)=[O:33])[CH:32]=[CH:31][CH:30]=[CH:29][CH:28]=1

Participants

Conditions

Temperature: 100 °C

Procedure

A mixture of 2,2,2-trifluoro-1-(1H-indazol-5-yl)-1-(1-methyl-1H-indol-3-yl)ethanol (0.162 mmol) and benzoyl chloride (0.324 mmol) in 1 mL pyridine was heated at 100° C. After 2 hours, the mixture was cooled to room temperature and diluted with ether and water. The organic layer was washed with aqueous HCl and brine and dried over magnesium sulfate. The volatiles were removed in vacuo and the residue purified by flash silica gel chromatography using 33% ethyl acetate in hexanes. The product-rich fractions were concentrated in vacuo to provide 0.093 mmol of the title compound, m.p. 102° C.-103° C.

Workup

temperaturethe mixture was cooled to room temperature
washThe organic layer was washed with aqueous HCl and brine
dry with materialdried over magnesium sulfate
customThe volatiles were removed in vacuo
customthe residue purified by flash silica gel chromatography
concentrationThe product-rich fractions were concentrated in vacuo

Sources & evidence

ORD record: ord-9b342229bb9b4af99ec8604f724d6e34
Source dataset: uspto-grants-2014_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08658637B2

Reaction notes

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