Potassium Carbonate → Ethyl 2-({[5-(biphenyl-4-yl)-1-(biphenyl-4-ylmethyl)-4,6-difluoro-1H-benzimidazol-2-yl]oxy}methyl)cyclopropanecarboxylate

HRID 340799

Reaction equation

HRID 340799 reaction equation
[C:1]1([C:30]2[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=2)[CH:6]=[CH:5][C:4]([CH2:7][N:8]2[C:12]3[CH:13]=[C:14]([F:19])[C:15](I)=[C:16]([F:17])[C:11]=3[N:10]=[C:9]2[O:20][CH2:21][CH:22]2[CH2:24][CH:23]2[C:25]([O:27][CH2:28][CH3:29])=[O:26])=[CH:3][CH:2]=1.B(O)(O)[C:37]1[CH:38]=[CH:39][C:40]([C:43]2[CH:44]=[CH:45][CH:46]=[CH:47][CH:48]=2)=[CH:41][CH:42]=1.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.CCOC(C)=O.O.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>[C:40]1([C:43]2[CH:48]=[CH:47][CH:46]=[CH:45][CH:44]=2)[CH:41]=[CH:42][C:37]([C:15]2[C:14]([F:19])=[CH:13][C:12]3[N:8]([CH2:7][C:4]4[CH:3]=[CH:2][C:1]([C:30]5[CH:35]=[CH:34][CH:33]=[CH:32][CH:31]=5)=[CH:6][CH:5]=4)[C:9]([O:20][CH2:21][CH:22]4[CH2:24][CH:23]4[C:25]([O:27][CH2:28][CH3:29])=[O:26])=[N:10][C:11]=3[C:16]=2[F:17])=[CH:38][CH:39]=1

Participants

8

Reactant 3

HCID 11430Potassium CarbonateHCID 1512531,1'-Biphenyl-4-yl-boronic acidHCID 67409526Ethyl 2-({[1-(biphenyl-4-ylmethyl)-4,6-difluoro-5-iodo-1H-benzimidazol-2-yl]oxy}methyl)cyclopropanecarboxylate

Product 1

HCID 71073938Ethyl 2-({[5-(biphenyl-4-yl)-1-(biphenyl-4-ylmethyl)-4,6-difluoro-1H-benzimidazol-2-yl]oxy}methyl)cyclopropanecarboxylate

Reagents, catalysts & solvents 4

HCID 178418397HCID 178418397, compoundCatalystHCID 962WaterSolventHCID 6228DimethylformamideSolventHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
120 °C

Procedure

A solution of Ethyl 2-({[1-(biphenyl-4-ylmethyl)-4,6-difluoro-5-iodo-1H-benzimidazol-2-yl]oxy}methyl)cyclo-propanecarboxylate (0.0440 g, 0.748 mmol), biphenylboronic acid (0.163 g, 0.823 mmol), and Pd(PPh3)4 (0.035 g, 0.030 mmol) in 7.5 mL of DMF was treated with a 1 M solution of K2CO3 (1.50 mL). The resulting yellow solution was heated at 120° C. for 45 min., and then diluted with EtOAc and H2O. The layers were separated and the aqueous layer was extracted with EtOAc. The combined organic layers were washed with brine, dried over Na2SO4, filtered, and concentrated. Purification of the resulting residue by flash chromatography (0% then 0-20% then 20-30% EtOAc/hexanes) afforded the title compound as a white solid. LCMS: calculated for C39H32F2N2O3 614.68, observed m/e 615.1 (M+H)+ (Rt 2.78/4 min).

Workup

  1. customThe layers were separated
  2. extractionthe aqueous layer was extracted with EtOAc
  3. washThe combined organic layers were washed with brine
  4. dry with materialdried over Na2SO4
  5. filtrationfiltered
  6. concentrationconcentrated
  7. customPurification of the resulting residue by flash chromatography (0%

Sources & evidence

ORD record
ord-d6ea4f8aeb654a95b79e587152b52390
Source dataset
uspto-grants-2014_11
Patent number
US08895596B2

Linked notes

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