Ethyl Acetate → HCID 59654999, compound

HRID 2053451Notes

Reaction equation

HRID 2053451 reaction equation
[CH2:1]([N:8]1[C:17]2[C:12](=[CH:13][C:14]([Cl:18])=[CH:15][CH:16]=2)[C:11](OS(C(F)(F)F)(=O)=O)=[C:10]([C:27]2[O:31][N:30]=[C:29]([CH3:32])[CH:28]=2)[C:9]1=[O:33])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[CH2:34]([C:36]1[CH:41]=[CH:40][C:39](B(O)O)=[CH:38][CH:37]=1)[CH3:35].C([O-])([O-])=O.[Na+].[Na+].CCOC(C)=O>O1CCOCC1.C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1>[CH2:1]([N:8]1[C:17]2[C:12](=[CH:13][C:14]([Cl:18])=[CH:15][CH:16]=2)[C:11]([C:39]2[CH:40]=[CH:41][C:36]([CH2:34][CH3:35])=[CH:37][CH:38]=2)=[C:10]([C:27]2[O:31][N:30]=[C:29]([CH3:32])[CH:28]=2)[C:9]1=[O:33])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

7

Reactant 4

HCID 8857Ethyl AcetateHCID 10340Sodium CarbonateHCID 2734352Boronic acid, (4-ethylphenyl)-HCID 59654957HCID 59654957, compound

Product 1

HCID 59654999HCID 59654999, compoundYield 81.1%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 312751,4-DioxaneSolvent

Conditions

Temperature
100 °C

Procedure

A mixture of trifluoro-methanesulfonic acid 1-benzyl-6-chloro-3-(3-methyl-isoxazol-5-yl)-2-oxo-1,2-dihydro-quinolin-4-yl ester (40 mg, 0.080 mmol), 4-ethylbenzeneboronic acid (14.4 mg, 0.096 mmol), Pd(PPh3)4 (9.2 mg, 0.0080 mmol) and Na2CO3 (80 ul, 0.16 mmol, 2.0 M)in 1 ml of 1,4-dioxane was stirred at 100° C. for 1 h, then cooled to rt. Treated with 40 ml of EtOAc, the mixture was washed with H2O (2×10 ml), brine (10 mL) and dried (Na2SO4). Removal of the solvent under reduced pressure followed by flash chromatography of the residue on silica gel (25% EtOAc/hexane) gave 29.5 mg (81%) of product as a white solid: 1H-NMR (CDCl3; 400 MHz) δ7.41 (dd, 1H, J=9.0, 2.2 Hz), 7.24-7.38 (m, 8H), 7.15 (d, 2H, J=8.0 Hz), 6.48 (s, 1H), 5.64 (s, 2H), 3.71 (s, 1H), 2.74 (q, 2H, J=7.6 Hz), 2.23 (s, 3H), 1.31 (t, 2H, J=7.6 Hz),. Mass spectrum (ESI, m/z): Calcd. for C28H23ClN2O2, 455.1 (M+H), found 455.1.

Workup

  1. temperaturecooled to rt
  2. washthe mixture was washed with H2O (2×10 ml), brine (10 mL)
  3. dry with materialdried (Na2SO4)
  4. customRemoval of the solvent under reduced pressure

Sources & evidence

ORD record
ord-0305cfc643b44f1ebaf32f07bcfbfb98
Source dataset
uspto-grants-2008_02
Patent number
US07326788B2

Reaction notes

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