Sodium Carbonate → 3-(6-Morpholinopyridin-3-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indazole-6-carbaldehyde

HRID 447363Notes

Reaction equation

HRID 447363 reaction equation
I[C:2]1[C:10]2[C:5](=[CH:6][C:7]([CH:11]=[O:12])=[CH:8][CH:9]=2)[N:4]([CH2:13][O:14][CH2:15][CH2:16][Si:17]([CH3:20])([CH3:19])[CH3:18])[N:3]=1.CC1(C)C(C)(C)OB([C:29]2[CH:30]=[CH:31][C:32]([N:35]3[CH2:40][CH2:39][O:38][CH2:37][CH2:36]3)=[N:33][CH:34]=2)O1.C([O-])([O-])=O.[Na+].[Na+]>COCCOC.O.CCO.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>[O:38]1[CH2:39][CH2:40][N:35]([C:32]2[N:33]=[CH:34][C:29]([C:2]3[C:10]4[C:5](=[CH:6][C:7]([CH:11]=[O:12])=[CH:8][CH:9]=4)[N:4]([CH2:13][O:14][CH2:15][CH2:16][Si:17]([CH3:20])([CH3:19])[CH3:18])[N:3]=3)=[CH:30][CH:31]=2)[CH2:36][CH2:37]1

Participants

6

Reactant 3

HCID 10340Sodium CarbonateHCID 27953634-(5-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-2-pyridinyl)morpholineHCID 581896963-iodo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indazole-6-carbaldehyde

Product 1

HCID 866588313-(6-Morpholinopyridin-3-yl)-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indazole-6-carbaldehydeYield 97.8%

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 86587095Dimethoxyethane ethanol waterSolvent

Conditions

Temperature
125 °C

Procedure

A mixture 3-iodo-1-((2-(trimethylsilyl)ethoxy)methyl)-1H-indazole-6-carbaldehyde (25 mg, 0.62 mmol), 4-(5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridin-2-yl)morpholine (22 mg, 0.75 mmol), PdCl2(PPh3)2 (4 mg, 0.006 mmol) and 2M Na2CO3 (0.31 mL, 0.62 mmol) in DME/H2O/EtOH (2.8 mL/0.8 mL/0.4 mL) was sealed and heated with stirring under microwave irradiation at 125° C. for 4 h. Solvent was removed and the crude product was purified by silica gel chromatography (95:5 CH2Cl2/MeOH) to yield a bright yellow foam (266 mg, 97%). 1H NMR (400 MHz, CD3OD) δ 10.02 (s, 1H), 8.60 (d, J=2.3 Hz, 1H), 8.13 (s, 1H), 7.99 (dd, J=8.9, 2.5 Hz, 1H), 7.94 (d, J=8.6 Hz, 1H), 7.64 (dd, J=8.7, 1.1 Hz, 1H), 6.80 (d, J=9.1 Hz, 1H), 5.78 (s, 2H), 3.76 (t, J=4.7 Hz, 4H), 3.61 (t, J=8.0 Hz, 2H), 3.49 (t, J=5.1 Hz, 4H), 0.84 (t, J=8.0 Hz, 2H), −0.12 (s, 9H); MS ESI 439.3 [M+H]+, calcd for [C23H30N4O3Si+H]+ 439.21.

Workup

  1. temperatureheated
  2. customSolvent was removed
  3. customthe crude product was purified by silica gel chromatography (95:5 CH2Cl2/MeOH)

Sources & evidence

ORD record
ord-bbe58454783f4ae1ad80fee6c74bbda1
Source dataset
uspto-grants-2013_07
Patent number
US08481533B2

Reaction notes

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