Potassium Carbonate → HCID 86719116, compound

HRID 572937Notes

Reaction equation

HRID 572937 reaction equation
Br[C:2]1[CH:3]=[C:4]([CH2:8][C:9]([O:11][CH3:12])=[O:10])[CH:5]=[CH:6][CH:7]=1.CC1(C)C(C)(C)OB([C:21]2[CH2:26][CH2:25][N:24]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:23][CH:22]=2)O1.C([O-])([O-])=O.[K+].[K+]>CN(C=O)C.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[CH3:12][O:11][C:9](=[O:10])[CH2:8][C:4]1[CH:3]=[C:2]([C:21]2[CH2:26][CH2:25][N:24]([C:27]([O:29][C:30]([CH3:33])([CH3:32])[CH3:31])=[O:28])[CH2:23][CH:22]=2)[CH:7]=[CH:6][CH:5]=1

Participants

6

Reactant 3

HCID 11430Potassium CarbonateHCID 4642098Tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-1,2,3,6-tetrahydropyridine-1-carboxylateHCID 11746402Methyl 2-(3-bromophenyl)acetate

Product 1

HCID 86719116HCID 86719116, compound

Reagents, catalysts & solvents 2

HCID 178418228Bis(cyclopenta-1,4-dien-1-yl(diphenyl)phosphane);dichloropalladium;iron(2+)CatalystHCID 6228DimethylformamideSolvent

Procedure

The solution of methyl 2-(3-bromophenyl)acetate (288.9 mg, 1.26 mmol), tert-butyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-5,6-dihydropyridine-1(2H)-carboxylate (300 mg, 0.97 mmol), PdCl2(dppf) (35.5 mg, 4.8% mmol) and K2CO3 (268.1 mg, 1.94 mmol) in DMF (20 mL) was stirred at 90 degree under N2 overnight. After cooling to room temperature, the mixture was filtered with celite, diluted with EtOAc, washed with water, dried over Na2SO4 and evaporated under reduced pressure. The residue was purified by a standard method to get desired product. LC-MS: m/z (M+H)=332.4

Workup

  1. filtrationthe mixture was filtered with celite
  2. additiondiluted with EtOAc
  3. washwashed with water
  4. dry with materialdried over Na2SO4
  5. customevaporated under reduced pressure
  6. customThe residue was purified by a standard method

Sources & evidence

ORD record
ord-80c0209c1e874245a395f8381c535564
Source dataset
uspto-grants-2015_05
Patent number
US09029531B2

Reaction notes

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