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

HRID 593915Notes

Reaction equation

HRID 593915 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-0254fb41133c4a6f83c3da10a91fe8ff
Source dataset
uspto-grants-2016_01
Patent number
US09242961B2

Reaction notes

Loading…