Water → 2-Amino3-cyano-4-methyl-5-[3,5-di(trifluoromethyl)phenyl]pyridine

HRID 1078224Notes

Reaction equation

HRID 1078224 reaction equation
[NH2:1][C:2]1[C:7]([C:8]#[N:9])=[C:6]([CH3:10])[C:5](Br)=[CH:4][N:3]=1.[F:12][C:13]([F:28])([F:27])[C:14]1[CH:15]=[C:16](B(O)O)[CH:17]=[C:18]([C:20]([F:23])([F:22])[F:21])[CH:19]=1.C(=O)([O-])[O-].[K+].[K+].O>C1(C)C=CC=CC=1.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>[NH2:1][C:2]1[C:7]([C:8]#[N:9])=[C:6]([CH3:10])[C:5]([C:16]2[CH:17]=[C:18]([C:20]([F:23])([F:21])[F:22])[CH:19]=[C:14]([C:13]([F:12])([F:28])[F:27])[CH:15]=2)=[CH:4][N:3]=1

Participants

7

Reactant 4

HCID 962WaterHCID 11430Potassium CarbonateHCID 1562653,5-Bis-trifluoromethylphenylboronic acidHCID 113218062-Amino-5-bromo-4-methylnicotinonitrile

Product 1

HCID 197071972-Amino3-cyano-4-methyl-5-[3,5-di(trifluoromethyl)phenyl]pyridine

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 1140TolueneSolvent

Procedure

A stirred solution of 1.7 grams (0.008 mole) of 2-amino-5-bromo-3-cyano-4-methylpyridine, 3.2 grams (0.012 mole) of 3,5-di(trifluoromethyl)phenylboronic acid (commercially available), 4.3 grams (0.031 mole) of potassium carbonate and 0.3 gram of tetrakis(triphenylphosphine)palladium(0) in 150 mL of toluene is heated at 90° C. for about 20 hours. After this time, the reaction mixture is stirred with 100 mL of water, and the organic layer is separated. The organic layer is concentrated under reduced pressure, yielding 2-amino-3-cyano-4-methyl-5-[3,5-di(trifluoromethyl)phenyl]pyridine.

Workup

  1. customthe organic layer is separated
  2. concentrationThe organic layer is concentrated under reduced pressure

Sources & evidence

ORD record
ord-b6cdd17baa9c4c27bc481591867837b4
Source dataset
uspto-grants-1996_08
Patent number
US05547954

Reaction notes

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