Hydrochloric Acid → HCID 66794638, compound

HRID 2069592Notes

Reaction equation

HRID 2069592 reaction equation
Cl.[Cl:2][C:3]1[CH:8]=[C:7]([Cl:9])[CH:6]=[CH:5][C:4]=1/[C:10](/[CH2:40][CH3:41])=[C:11](\[C:27]1[CH:32]=[CH:31][C:30](/[CH:33]=[CH:34]/[C:35]([O:37][CH2:38][CH3:39])=[O:36])=[CH:29][CH:28]=1)/[C:12]1[CH:13]=[C:14]2[C:18](=[CH:19][CH:20]=1)[N:17](C1CCCCO1)[N:16]=[CH:15]2>C(O)C.C(Cl)Cl>[Cl:2][C:3]1[CH:8]=[C:7]([Cl:9])[CH:6]=[CH:5][C:4]=1/[C:10](/[CH2:40][CH3:41])=[C:11](\[C:27]1[CH:32]=[CH:31][C:30](/[CH:33]=[CH:34]/[C:35]([O:37][CH2:38][CH3:39])=[O:36])=[CH:29][CH:28]=1)/[C:12]1[CH:13]=[C:14]2[C:18](=[CH:19][CH:20]=1)[NH:17][N:16]=[CH:15]2

Participants

5

Reactant 2

HCID 313Hydrochloric AcidHCID 66794633HCID 66794633, compound

Product 1

HCID 66794638HCID 66794638, compoundYield 92.7%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 6344DichloromethaneSolvent

Conditions

Temperature
70 °C

Procedure

A solution of HCl (5.0 mL, 2.0 M in diethyl ether) was added to a solution of (E)-ethyl 3-(4-((E)-2-(2,4-dichlorophenyl)-1-(1-(tetrahydro-2H-pyran-2-yl)-1H-indazol-5-yl)but-1-en-1-yl)phenyl)acrylate (3.0 g, 5.2 mmol) in ethyl alcohol (25 mL) at room temperature. The resulting mixture was heated at 70° C. for 2 h. Upon completion, the mixture was cooled down to room temperature and concentrated to give a pale yellow solid. This crude material was dissolved in DCM and washed with water (50 mL), washed with brine (50 mL), dried over sodium sulfate, filtered, and concentrated. The crude product was purified by silica gel chromatography (0-100% ethyl acetate in hexanes) to give the title compound (2.37 g) as a pale yellow solid. 1H NMR (400 MHz, DMSO-d6): δ 13.17 (s, 1H), 8.11 (s, 1H), 7.69 (s, 1H), 7.58-7.52 (m, 2H), 7.48 (d, 1H), 7.43 (d, 2H), 7.36-7.32 (m, 2H), 7.19 (dd, 1H), 6.97 (d, 2H), 6.49 (d, 1H), 4.15 (q, 2H), 2.39 (q, 2H), 1.22 (t, 3H), 0.90 (t, 3H); LCMS: 491 (M+H)+.

Workup

  1. temperatureUpon completion, the mixture was cooled down to room temperature
  2. concentrationconcentrated
  3. customto give a pale yellow solid
  4. washwashed with water (50 mL)
  5. washwashed with brine (50 mL)
  6. dry with materialdried over sodium sulfate
  7. filtrationfiltered
  8. concentrationconcentrated
  9. customThe crude product was purified by silica gel chromatography (0-100% ethyl acetate in hexanes)

Sources & evidence

ORD record
ord-d68884f40dfd48bebedb2ee6fb3f0616
Source dataset
uspto-grants-2012_10
Patent number
US08299112B2

Reaction notes

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