Hydrochloric Acid → HCID 23729194, compound

HRID 2273287Notes

Reaction equation

HRID 2273287 reaction equation
[F:1][C:2]([F:21])([F:20])[C:3]([C:5]1[NH:9][C:8]2[CH:10]=[C:11]([C:16]([F:19])([F:18])[F:17])[C:12]([C:14]#[N:15])=[CH:13][C:7]=2[N:6]=1)=[O:4].[CH2:22](Br)[C:23]#[CH:24].[In].Cl>C1COCC1.O.C(OCC)(=O)C>[OH:4][C:3]([C:5]1[NH:9][C:8]2[CH:10]=[C:11]([C:16]([F:17])([F:18])[F:19])[C:12]([C:14]#[N:15])=[CH:13][C:7]=2[N:6]=1)([C:2]([F:20])([F:1])[F:21])[CH2:24][C:23]#[CH:22]

Participants

8

Reactant 4

HCID 313Hydrochloric AcidHCID 7842Propargyl bromideHCID 5359967IndiumHCID 86614855HCID 86614855, compound

Product 1

HCID 23729194HCID 23729194, compound

Reagents, catalysts & solvents 3

HCID 962WaterSolventHCID 8028TetrahydrofuranSolventHCID 8857Ethyl AcetateSolvent

Procedure

2-(2,2,2-Trifluoro-acetyl)-6-trifluoromethyl-1H-benzoimidazole-5-carbonitrile (0.31 g; 0.94 mmol), propargyl bromide (80% in toluene; 1.1 mL; 12.3 mmol) and indium (1.08 g; 9.5 mmol) were suspended in THF (12 mL) and 0.03 M HCl (10 mL) and stirred vigorously overnight. The reaction mixture was then diluted with water (60 mL) and ethyl acetate (40 mL), the layers were separated and the aqueous layer was extracted with ethyl acetate (3×20 mL). The combined extracts were washed with brine (50 mL) and dried over Na2SO4 to yield a crude material. The crude material was purified by column chromatography (SiO2; 20% ethyl acetate/hexanes) to yield the title compound as an off-white solid.

Workup

  1. customthe layers were separated
  2. extractionthe aqueous layer was extracted with ethyl acetate (3×20 mL)
  3. washThe combined extracts were washed with brine (50 mL)
  4. dry with materialdried over Na2SO4
  5. customto yield a crude material
  6. customThe crude material was purified by column chromatography (SiO2; 20% ethyl acetate/hexanes)

Sources & evidence

ORD record
ord-ab2ca6dbe74e403a92a2fdf09f122f78
Source dataset
uspto-grants-2015_09
Patent number
US09120830B2

Reaction notes

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