4-(Trifluoromethyl)phenylboronic acid → 2-(Ethyloxy)-2-oxoethyl 4-{5-[4-(trifluoromethyl)phenyl]-2-pyridyl}-1-piperazinecarboxylate

HRID 2246202Notes

Reaction equation

HRID 2246202 reaction equation
Br[C:2]1[CH:3]=[CH:4][C:5]([N:8]2[CH2:13][CH2:12][N:11]([C:14]([O:16][CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])=[O:15])[CH2:10][CH2:9]2)=[N:6][CH:7]=1.[F:23][C:24]([F:35])([F:34])[C:25]1[CH:30]=[CH:29][C:28](B(O)O)=[CH:27][CH:26]=1>C(OCC)(=O)C.C1CCCCC1.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>[F:23][C:24]([F:35])([F:34])[C:25]1[CH:30]=[CH:29][C:28]([C:2]2[CH:3]=[CH:4][C:5]([N:8]3[CH2:13][CH2:12][N:11]([C:14]([O:16][CH2:17][C:18]([O:20][CH2:21][CH3:22])=[O:19])=[O:15])[CH2:10][CH2:9]3)=[N:6][CH:7]=2)=[CH:27][CH:26]=1

Participants

6

Reactant 2

HCID 27343894-(Trifluoromethyl)phenylboronic acidHCID 602095502-(Ethyloxy)-2-oxoethyl 4-(5-bromo-2-pyridyl)-1-piperazinecarboxylate

Product 1

HCID 602095522-(Ethyloxy)-2-oxoethyl 4-{5-[4-(trifluoromethyl)phenyl]-2-pyridyl}-1-piperazinecarboxylate

Reagents, catalysts & solvents 3

HCID 178418397HCID 178418397, compoundCatalystHCID 8078CyclohexaneSolventHCID 8857Ethyl AcetateSolvent

Procedure

The process is performed according to the procedure described in Example 1 (step 1.3.). Starting with 4 g (10.75 mmol) of 2-(ethyloxy)-2-oxoethyl 4-(5-bromo-2-pyridyl)-1-piperazinecarboxylate, obtained in step 3.3. of Example 3, 5.50 g (28.96 mmol) of 4-(trifluoromethyl)-phenylboronic acid, 9.12 g (42.99 mmol) of hydrated potassium phosphate and 1.24 g (1.07 mmol) of tetrakis(triphenylphosphine)palladium, and after chromatography on silica gel, eluting with a 30/70 mixture of ethyl acetate and cyclohexane, 2.78 g of product are obtained in the form of a white solid.

Workup

  1. customobtained in step 3.3
  2. customare obtained in the form of a white solid

Sources & evidence

ORD record
ord-aca8de081972484fa8fc7fd399a8b2a1
Source dataset
uspto-grants-2010_03
Patent number
US07687503B2

Reaction notes

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