Toluene → HCID 86081346, compound

HRID 1436536Notes

Reaction equation

HRID 1436536 reaction equation
Cl[C:2]1[CH:3]=[C:4]([CH:9]=[C:10]([Cl:12])[N:11]=1)[C:5]([O:7][CH3:8])=[O:6].[C:13]1(C)C=CC=C[CH:14]=1.C([Sn](CCCC)(CCCC)C=C)CCC>C(OCC)C.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.C1C=CC(/C=C/C(/C=C/C2C=CC=CC=2)=O)=CC=1.[Pd].[Pd]>[CH3:8][O:7][C:5](=[O:6])[C:4]1[CH:3]=[C:2]([CH:13]=[CH2:14])[N:11]=[C:10]([Cl:12])[CH:9]=1

Participants

6

Reactant 3

HCID 1140TolueneHCID 81998TributylvinyltinHCID 93237Methyl 2,6-dichloroisonicotinate

Product 1

HCID 86081346HCID 86081346, compoundYield 70%

Reagents, catalysts & solvents 2

HCID 9811564Bis(dibenzylideneacetone)palladiumCatalystHCID 3283Diethyl EtherSolvent

Procedure

Add methyl 2,6-dichloroisonicotinate (3.8 g, 18.4 mmol), tetrakis(triphenylphosphine)palladium (0) (1.15 g, 0.99 mmol), triphenyhlphosphine (524 mg, 2 mmol) and toluene (40 mL) in a previously nitrogen-filled sealed vessel. Flush the reactants with nitrogen again. Add tributyl(vinyl)tin (6.98 mL, 24.0 mmol) under nitrogen and heat the sealed mixture at 95° C. overnight with vigorous stirring. Cool the reaction to room temperature, dilute with diethyl ether and filter through a filtering agent. Wash the organic filtrate with saturated aqueous ammonium chloride, saturated aqueous sodium bicarbonate, saturated aqueous sodium chloride, dry (magnesium sulfate), concentrate and purify (silica gel chromatography, eluting with 5:95 to 10:90 ethyl acetate:hexanes) to give the title compound (70%).

Workup

  1. additionfilled
  2. customsealed vessel
  3. customFlush the reactants with nitrogen again
  4. temperatureCool
  5. customthe reaction to room temperature
  6. filtrationfilter through a filtering agent
  7. washWash the organic filtrate with saturated aqueous ammonium chloride, saturated aqueous sodium bicarbonate, saturated aqueous sodium chloride
  8. dry with materialdry (magnesium sulfate)
  9. concentrationconcentrate
  10. custompurify
  11. wash(silica gel chromatography, eluting with 5:95 to 10:90 ethyl acetate:hexanes)

Sources & evidence

ORD record
ord-e866991acf25453099570789aafbeff6
Source dataset
uspto-grants-2009_11
Patent number
US07618978B2

Reaction notes

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