Ethyl Acetate → 4-Chloro-6-(4-chlorophenyl)pyrimidine

HRID 1361496Notes

Reaction equation

HRID 1361496 reaction equation
Cl[C:2]1[N:7]=[C:6]([Cl:8])[CH:5]=[CH:4][N:3]=1.[Cl:9][C:10]1[CH:15]=[CH:14][C:13](B(O)O)=[CH:12][CH:11]=1.C([O-])([O-])=O.[Na+].[Na+].CCOC(C)=O>C1COCC1.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>[Cl:8][C:6]1[CH:5]=[C:4]([C:13]2[CH:14]=[CH:15][C:10]([Cl:9])=[CH:11][CH:12]=2)[N:3]=[CH:2][N:7]=1

Participants

7

Reactant 4

HCID 8857Ethyl AcetateHCID 10340Sodium CarbonateHCID 742994-Chlorophenylboronic acidHCID 775312,4-Dichloropyrimidine

Product 1

HCID 249020894-Chloro-6-(4-chlorophenyl)pyrimidineYield 71%

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 21881883Oxolane--water (1/1)Solvent

Procedure

To a solution of 2,4-dichloro-pyrimidine (1 eq) in THF/H2O (4:3) solution, was added 4-chloro phenyl boronic acid (1 eq), Pd(PPh3)4 (0.01 eq) and Na2CO3 (2 eq) under Ar. The reaction mixture was stirred at reflex for overnight. EtOAc (10 mL) was added. The organic phase was separated, dried over Na2SO4, and concentrated. The residue was purified by column chromatography (Ethyl acetate:Hexane:1:3) to give the desired product as a white powder (71% yield. MS: (ESI), MIZ, 225 (M+1). Retention time: 1.07 min (FA-non polar).

Workup

  1. customThe organic phase was separated
  2. dry with materialdried over Na2SO4
  3. concentrationconcentrated
  4. customThe residue was purified by column chromatography (Ethyl acetate:Hexane:1:3)

Sources & evidence

ORD record
ord-3d5e56d1b60d4eeab17c2be8ec83d113
Source dataset
uspto-grants-2011_02
Patent number
US07880002B2

Reaction notes

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