Triethylamine → 4-{4-[3-(2,6-Dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-ylmethoxy]-2-methyl-phenylethynyl}-benzoic acid methyl ester

HRID 424845

Reaction equation

HRID 424845 reaction equation
Br[C:2]1[CH:25]=[CH:24][C:5]([O:6][CH2:7][C:8]2[N:12]([C:13]3[C:18]([Cl:19])=[CH:17][CH:16]=[CH:15][C:14]=3[Cl:20])[N:11]=[N:10][C:9]=2[CH:21]([CH3:23])[CH3:22])=[CH:4][C:3]=1[CH3:26].[CH3:27][O:28][C:29](=[O:38])[C:30]1[CH:35]=[CH:34][C:33]([C:36]#[CH:37])=[CH:32][CH:31]=1.C(N(CC)CC)C>CN(C=O)C.[O-]S(C(F)(F)F)(=O)=O.[Zn+2].[O-]S(C(F)(F)F)(=O)=O>[CH3:27][O:28][C:29](=[O:38])[C:30]1[CH:35]=[CH:34][C:33]([C:36]#[C:37][C:2]2[CH:25]=[CH:24][C:5]([O:6][CH2:7][C:8]3[N:12]([C:13]4[C:18]([Cl:19])=[CH:17][CH:16]=[CH:15][C:14]=4[Cl:20])[N:11]=[N:10][C:9]=3[CH:21]([CH3:22])[CH3:23])=[CH:4][C:3]=2[CH3:26])=[CH:32][CH:31]=1

Participants

6

Reactant 3

HCID 8471TriethylamineHCID 640163Methyl 4-ethynylbenzoateHCID 667040695-(4-Bromo-3-methyl-phenoxymethyl)-1-(2,6-dichloro-phenyl)-4-isopropyl-1H-[1,2,3]triazole

Product 1

HCID 667041244-{4-[3-(2,6-Dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-ylmethoxy]-2-methyl-phenylethynyl}-benzoic acid methyl esterYield 64.6%

Reagents, catalysts & solvents 2

HCID 104671Zinc trifluoromethanesulfonateCatalystHCID 6228DimethylformamideSolvent

Conditions

Temperature
80 °C

Procedure

To a room temperature solution of 5-(4-bromo-3-methyl-phenoxymethyl)-1-(2,6-dichloro-phenyl)-4-isopropyl-1H-[1,2,3]triazole (50 mg, 0.110 mmol) in DMF (1 mL) are added 4-ethynyl-benzoic acid methyl ester (18 mg, 0.110 mmol) and triethylamine (107 μL, 0.770 mmol). The reaction mixture is degassed for 20 minutes with nitrogen. To the reaction mixture are added dichloro(bistriphenylphosphine) palladium (II) (8 mg, 0.011 mmol, 10 mol %) and zinc (II) triflate (40 mg, 0.110 mmol). The reaction mixture is heated to 80° C. After 3 h, the reaction is concentrated and the residue is chromatographed (40 g SiO2, 0% to 5% EtOAc/Hexanes) to yield 4-{4-[3-(2,6-Dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-ylmethoxy]-2-methyl-phenylethynyl}-benzoic acid methyl ester (38 mg, 64%). LC/MS m/e 534.2 (M+1).

Workup

  1. customThe reaction mixture is degassed for 20 minutes with nitrogen
  2. concentrationthe reaction is concentrated
  3. customthe residue is chromatographed (40 g SiO2, 0% to 5% EtOAc/Hexanes)

Sources & evidence

ORD record
ord-a3db19c76cf545ee94149b48c2b17fae
Source dataset
uspto-grants-2012_01
Patent number
US08106077B2

Linked notes

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