1,2-Dimethoxyethane → 2-Chloro-4-(2-chloropyridin-3-yl)pyrimidine

HRID 2361006Notes

Reaction equation

HRID 2361006 reaction equation
[Cl:1][C:2]1[N:7]=[C:6](Cl)[CH:5]=[CH:4][N:3]=1.[Cl:9][C:10]1[C:15](B(O)O)=[CH:14][CH:13]=[CH:12][N:11]=1.COCCOC.C([O-])(O)=O.[Na+]>CCOC(C)=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:1][C:2]1[N:7]=[C:6]([C:15]2[C:10]([Cl:9])=[N:11][CH:12]=[CH:13][CH:14]=2)[CH:5]=[CH:4][N:3]=1

Participants

7

Reactant 4

HCID 80711,2-DimethoxyethaneHCID 775312,4-DichloropyrimidineHCID 516892Sodium BicarbonateHCID 2762704(2-Chloropyridin-3-yl)boronic acid

Product 1

HCID 249019302-Chloro-4-(2-chloropyridin-3-yl)pyrimidine

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 8857Ethyl AcetateSolvent

Conditions

Temperature
90 °C

Procedure

To 2,4-dichloropyrimidine (2.00 g, 13.4 mmol), 2-choropyridine-3-boronic acid (3.16 g, 20.1 mmol) and Pd(PPh3)4 (1.55 g, 1.30 mmol), was added DME (30.0 mL) and 1 M NaHCO3 (13.0 mL). The resulting mixture was heated to 90° C. for 17 hours, then diluted with EtOAc and extracted with saturated sodium carbonate, water, and brine. The organics were dried over sodium sulfate, filtered and concentrated. The resulting solid was triturated with ether and dried to yield the desired product. MS m/z=226 [M+H]+. Calc'd for C9H5Cl2N4: 225.12.

Workup

  1. extractionextracted with saturated sodium carbonate, water, and brine
  2. dry with materialThe organics were dried over sodium sulfate
  3. filtrationfiltered
  4. concentrationconcentrated
  5. customThe resulting solid was triturated with ether
  6. customdried

Sources & evidence

ORD record
ord-ad159907f21d468db1c72097b8d6adc8
Source dataset
uspto-grants-2014_04
Patent number
US08686155B2

Reaction notes

Loading…