1,2-Dimethoxyethane → HCID 57917411, compound

HRID 69287Notes

Reaction equation

HRID 69287 reaction equation
Cl[C:2]1[CH:3]=[CH:4][C:5]2[N:6]([C:8]([CH2:11][C:12]3[C:13]([F:23])=[C:14]4[C:18](=[CH:19][C:20]=3[F:21])[N:17]([CH3:22])[N:16]=[CH:15]4)=[CH:9][N:10]=2)[N:7]=1.COCCOC.[CH3:30][N:31]1[CH:35]=[C:34](B2OC(C)(C)C(C)(C)O2)[CH:33]=[N:32]1>C(Cl)Cl.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>[F:23][C:13]1[C:12]([CH2:11][C:8]2[N:6]3[N:7]=[C:2]([C:34]4[CH:33]=[N:32][N:31]([CH3:30])[CH:35]=4)[CH:3]=[CH:4][C:5]3=[N:10][CH:9]=2)=[C:20]([F:21])[CH:19]=[C:18]2[C:14]=1[CH:15]=[N:16][N:17]2[CH3:22]

Participants

6

Reactant 3

HCID 80711,2-DimethoxyethaneHCID 27739871-Methyl-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-pyrazoleHCID 581475346-chloro-3-((4,6-difluoro-1-methyl-1H-indazol-5-yl)methyl)imidazo[1,2-b]pyridazine

Product 1

HCID 57917411HCID 57917411, compound

Reagents, catalysts & solvents 2

HCID 178418476HCID 178418476, compoundCatalystHCID 6344DichloromethaneSolvent

Procedure

In a microwave vial were introduced under argon 1-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (23 mg, 0.112 mmol) and 6-chloro-3-(4,6-difluoro-1-methyl-1H-indazol-5-ylmethyl)-imidazo[1,2-b]pyridazine (Stage 284.1, 25 mg, 0.075 mmol) with 0.3 mL DME. The solution was degassed with argon, before adding PdCl2(PPh3)2 (1.5 mg) and 2 M K2CO3 (0.101 mL). The RM was then stirred at 80°-90° C. for 30 min. Additional 1-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (10 mg, 0.048 mmol) and PdCl2(PPh3)2 (1.5 mg) were added. The RM was then diluted with DCM and washed with sat. aqueous NaHCO3 and brine. The organic layer was dried over Na2SO4, filtered, evaporated to dryness and the residue was purified (CombiFlash® Companion System®, with RediSep® silica gel column, EtOAc/MeOH=100:0->80:20) to afford the title compound as a beige crystalline powder (tR 3.91 min (conditions 3), MH+=380.2, 1H-NMR in DMSO-d6: 8.36 (s, 1H); 8.18 (s, 1H); 8.05 (s, 1H); 8.02 (d, 1H); 7.50 (m, 2H); 7.45 (s, 1H); 4.40 (s, 2H); 3.97 (s, 3H); 3.90 (s, 3H)).

Workup

  1. additionIn a microwave vial were introduced under argon 1-methyl-4-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-1H-pyrazole (23 mg, 0.112 mmol)
  2. customThe solution was degassed with argon
  3. additionbefore adding PdCl2(PPh3)2 (1.5 mg) and 2 M K2CO3 (0.101 mL)
  4. washwashed with sat. aqueous NaHCO3 and brine
  5. dry with materialThe organic layer was dried over Na2SO4
  6. filtrationfiltered
  7. customevaporated to dryness
  8. customthe residue was purified (CombiFlash® Companion System®, with RediSep® silica gel column, EtOAc/MeOH=100:0->80:20)

Sources & evidence

ORD record
ord-6ae1a834e862443d94b695b187a1e2e1
Source dataset
uspto-grants-2014_09
Patent number
US08822468B2

Reaction notes

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