Chlorosuccinimide → N-[1-Cyano-2-(3,6-dichloro-2H-indazol-2-yl)-1-methylethyl]-4-trifluoromethoxybenzamide

HRID 415782Notes

Reaction equation

[Cl:1][C:2]1[CH:3]=[CH:4][C:5]2[C:9]([CH:10]=1)=[N:8][N:7]([CH2:11][C:12]([NH:16][C:17](=[O:29])[C:18]1[CH:23]=[CH:22][C:21]([O:24][C:25]([F:28])([F:27])[F:26])=[CH:20][CH:19]=1)([C:14]#[N:15])[CH3:13])[CH:6]=2.[Cl:30]N1C(=O)CCC1=O>C(#N)C.O>[C:14]([C:12]([NH:16][C:17](=[O:29])[C:18]1[CH:23]=[CH:22][C:21]([O:24][C:25]([F:26])([F:27])[F:28])=[CH:20][CH:19]=1)([CH3:13])[CH2:11][N:7]1[C:6]([Cl:30])=[C:5]2[C:9]([CH:10]=[C:2]([Cl:1])[CH:3]=[CH:4]2)=[N:8]1)#[N:15]

Participants

Conditions

Temperature: 60 °C

Procedure

A mixture of N-[2-(6-chloro-2H-indazol-2-yl)-1-cyano-1-methylethyl]-4-trifluoromethoxybenzamide (50 mg, described in Example 132), and N-chlorosuccinimide (16 mg) in acetonitrile (1 mL) was heated to 60° C. for 3.5 hours. The mixture was cooled to room temperature, diluted with water and extracted with ethyl acetate. The organic layer was collected, dried over sodium sulfate, filtered and concentrated under reduced pressure to give a residue that was purified by chromatography (SiO2, heptane/EA) to afford the title compound (46 mg, 85%). MS (ES): M/Z [M+H]=457. 1H NMR: (400 MHz, CHLOROFORM-d): 1.92 (s, 3H), 4.80 (d, J=14.3 Hz, 1H), 5.03 (d, J=14.3 Hz, 1H), 7.15 (dd, J=9.0, 1.4 Hz, 1H), 7.35 (d, J=8.5 Hz, 2H), 7.57 (d, J=9.0 Hz, 1H), 7.63 (s, 1H), 7.93 (d, J=8.7 Hz, 2H) and 8.65 (s, 1H). 19F NMR (376 MHz, CHLOROFORM-d): −58.1 (s, 3F).

Workup

temperatureThe mixture was cooled to room temperature
extractionextracted with ethyl acetate
customThe organic layer was collected
dry with materialdried over sodium sulfate
filtrationfiltered
concentrationconcentrated under reduced pressure
customto give a residue that
customwas purified by chromatography (SiO2, heptane/EA)

Sources & evidence

ORD record: ord-f536c93926a54f35855202282f38c151
Source dataset: uspto-grants-2012_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08088801B2

Reaction notes

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