Hydrochloric Acid → 4-[4-(3,5-dichloro-phenyl)-4-trifluoromethyl-4,5-dihydro-3H-pyrrol-2-yl]-2-methyl-N-thietan-3-yl-benzamide

HRID 1844647Notes

Reaction equation

HRID 1844647 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([C:9]([CH2:31][N+:32]([O-])=O)([C:27]([F:30])([F:29])[F:28])[CH2:10][C:11]([C:13]2[CH:25]=[CH:24][C:16]([C:17]([NH:19][CH:20]3[CH2:23][S:22][CH2:21]3)=[O:18])=[C:15]([CH3:26])[CH:14]=2)=O)[CH:5]=[C:6]([Cl:8])[CH:7]=1.Cl.O>CN(C=O)C>[Cl:1][C:2]1[CH:3]=[C:4]([C:9]2([C:27]([F:30])([F:29])[F:28])[CH2:31][N:32]=[C:11]([C:13]3[CH:25]=[CH:24][C:16]([C:17]([NH:19][CH:20]4[CH2:23][S:22][CH2:21]4)=[O:18])=[C:15]([CH3:26])[CH:14]=3)[CH2:10]2)[CH:5]=[C:6]([Cl:8])[CH:7]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 962WaterHCID 674585224-[3-(3,5-dichloro-phenyl)-4,4,4-trifluoro-3-nitromethylbutyryl]-2-methyl-N-thietan-3-yl-benzamide

Product 1

HCID 666553094-[4-(3,5-dichloro-phenyl)-4-trifluoromethyl-4,5-dihydro-3H-pyrrol-2-yl]-2-methyl-N-thietan-3-yl-benzamideYield 16.9%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

To a solution of 4-[3-(3,5-dichloro-phenyl)-4,4,4-trifluoro-3-nitromethyl-butyryl]-2-methyl-N-thietan-3-yl-benzamide (Example I21) (78 mg) in DMF (1.5 ml) zinc powder (48 mg) was added at ambient temperature. The reaction mixture was heated to 80° C. and concentrated hydrochloric acid (0.3 ml) was added drop-wise. The reaction mixture was stirred at 80° C. for 4 hours. Water was added and the mixture was extracted twice with ethyl acetate. The combined organic phases were washed with brine, dried over sodium sulfate and concentrated. The residue was purified by prep. HPLC to give give 4-[4-(3,5-dichloro-phenyl)-4-trifluoromethyl-4,5-dihydro-3H-pyrrol-2-yl]-2-methyl-N-thietan-3-yl-benzamide (12 mg). 1H-NMR (400 MHz, CDCl3): 7.75-7.25 (m, 6H), 6.35 (s, 1H), 5.45 (m, 1H), 4.90 (d, 1H), 4.45 (d, 1H), 3.82 (d, 1H), 3.55-3.38 (m, 5H), 2.48 (s, 3H) ppm.

Workup

  1. customwas added at ambient temperature
  2. extractionthe mixture was extracted twice with ethyl acetate
  3. washThe combined organic phases were washed with brine
  4. dry with materialdried over sodium sulfate
  5. concentrationconcentrated
  6. customThe residue was purified by prep
  7. customHPLC to give

Sources & evidence

ORD record
ord-a3114ae96a4345368c2644e95ac9015a
Source dataset
uspto-grants-2015_02
Patent number
US08946447B2

Reaction notes

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