Hydrazine hydrate (1:1) → (E)-(4-(4,4,4-trifluoro-3-(3,4,5-trichlorophenyl)but-1-en-1-yl)phenyl)hydrazine

HRID 1503016Notes

Reaction equation

[F:1][C:2]([F:34])([F:33])[CH:3]([C:24]1[CH:29]=[C:28]([Cl:30])[C:27]([Cl:31])=[C:26]([Cl:32])[CH:25]=1)/[CH:4]=[CH:5]/[C:6]1[CH:11]=[CH:10][C:9]([NH:12][N:13]2C(=O)C3C(=CC=CC=3)C2=O)=[CH:8][CH:7]=1.O.NN>CCO>[F:34][C:2]([F:1])([F:33])[CH:3]([C:24]1[CH:25]=[C:26]([Cl:32])[C:27]([Cl:31])=[C:28]([Cl:30])[CH:29]=1)/[CH:4]=[CH:5]/[C:6]1[CH:11]=[CH:10][C:9]([NH:12][NH2:13])=[CH:8][CH:7]=1

Participants

Conditions

Temperature: 85 °C

Procedure

To a stirred solution of (E)-2-(4-(4,4,4-trifluoro-3-(3,4,5-trichlorophenyl)but-1-enyl)phenylamino)isoindoline-1,3-dione (CI.16 g, 0.31 mmol) in EtOH (5 mL), was added hydrazine hydrate (0.076 g, 1.52 mmol), and the reaction mixture was heated at 85° C. for 1 h. The reaction mixture was cooled to ambient temperature and filtered, and the filtrate was concentrated under reduced pressure to afford the title compound as a solid (0.08 g, 66%) which was carried on to the next step without further purification.

Workup

temperatureThe reaction mixture was cooled to ambient temperature
filtrationfiltered
concentrationthe filtrate was concentrated under reduced pressure

Sources & evidence

ORD record: ord-1f7fad2b06af43128c7b1778944a8537
Source dataset: uspto-grants-2015_12
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09211281B2

Reaction notes

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