Sodium Carbonate → HCID 57722838, compound

HRID 1987123Notes

Reaction equation

HRID 1987123 reaction equation
[Si:1]([O:8][CH:9]([C:11]1[CH:12]=[CH:13][C:14]2[CH:25]=[CH:24][C:18]3=[N:19][CH:20]=[C:21](Cl)[CH:22]=[C:17]3[C:16](=[O:26])[C:15]=2[CH:27]=1)[CH3:10])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2].[CH3:28][N:29]1[CH:33]=[C:32](B2OC(C)(C)C(C)(C)O2)[CH:31]=[N:30]1.C(=O)([O-])[O-].[Na+].[Na+]>Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[Si:1]([O:8][CH:9]([C:11]1[CH:12]=[CH:13][C:14]2[CH:25]=[CH:24][C:18]3=[N:19][CH:20]=[C:21]([C:32]4[CH:31]=[N:30][N:29]([CH3:28])[CH:33]=4)[CH:22]=[C:17]3[C:16](=[O:26])[C:15]=2[CH:27]=1)[CH3:10])([C:4]([CH3:7])([CH3:6])[CH3:5])([CH3:3])[CH3:2]

Participants

5

Reactant 3

HCID 10340Sodium CarbonateHCID 27739871-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 57722880HCID 57722880, compound

Product 1

HCID 57722838HCID 57722838, compound

Reagents, catalysts & solvents 1

HCID 178418476HCID 178418476, compoundCatalyst

Conditions

Temperature
100 °C

Procedure

A test tube fitted with a teflon septum was charged with 7-(1-{[tert-butyl(dimethyl)silyl]oxy}ethyl)-3-chloro-5H-benzo[4,5]cyclohepta[1,2-b]pyridin-5-one (50 mg, 0.13 mmol), PdCl2(PPh3)2 (9 mg, 0.013 mmol), 1-methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazole (78 mg, 0.38 mmol), and sodium carbonate (40 mg, 0.38 mmol). The tube was evacuated and backfilled with argon three times. Fully degassed dioxane (1.2 mL) was added and the mixture was stirred at 100° C. overnight. The solution was diluted with ethyl acetate, washed with water and brine, dried over magnesium sulfate, concentrated in vacuo, and purified via flash chromatography (silica, 20-100% ethyl acetate/hexanes) to afford the title compound. 1H NMR (600 MHz, CDCl3) δ 8.99 (d, 1H); 8.58 (d, 1H); 8.19 (d, 1H); 7.90 (d, 1H); 7.97 (s, 1H); 7.72 (dd, 1H); 7.56 (d, 1H); 7.32 (d, 1H); 7.22 (d, 1H); 5.01 (q, 1H); 3.97 (s, 3H); 1.44 (d, 3H); 0.90 (s, 9H); 0.06 (s, 3H); −0.02 (s, 3H). LRMS (APCI) calc'd for (C26H32N3O2Si) [M+H]+, 446.2; found, 446.2.

Workup

  1. customThe tube was evacuated
  2. additionFully degassed dioxane (1.2 mL) was added
  3. additionThe solution was diluted with ethyl acetate
  4. washwashed with water and brine
  5. dry with materialdried over magnesium sulfate
  6. concentrationconcentrated in vacuo
  7. custompurified via flash chromatography (silica, 20-100% ethyl acetate/hexanes)

Sources & evidence

ORD record
ord-ee637a7f59124cb18a27f47742476665
Source dataset
uspto-grants-2009_06
Patent number
US07550478B2

Reaction notes

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