Methanol → 2-[2-(2,4,5-Trichloro-phenoxy)-acetylamino]-isonicotinamide

HRID 1945455

Reaction equation

HRID 1945455 reaction equation
[Cl:1][C:2]1[CH:12]=[C:11]([Cl:13])[C:10]([Cl:14])=[CH:9][C:3]=1[O:4][CH2:5][C:6]([OH:8])=O.[NH2:15][C:16]1[CH:17]=[C:18]([CH:22]=[CH:23][N:24]=1)[C:19]([NH2:21])=[O:20].C1CN([P+](ON2N=NC3C=CC=CC2=3)(N2CCCC2)N2CCCC2)CC1.F[P-](F)(F)(F)(F)F.CO>CN(C1C=CN=CC=1)C.CN(C=O)C>[Cl:1][C:2]1[CH:12]=[C:11]([Cl:13])[C:10]([Cl:14])=[CH:9][C:3]=1[O:4][CH2:5][C:6]([NH:15][C:16]1[CH:17]=[C:18]([CH:22]=[CH:23][N:24]=1)[C:19]([NH2:21])=[O:20])=[O:8]

Participants

7

Reactant 4

HCID 887MethanolHCID 1480Trichlorophenoxyacetic acidHCID 3516532-AminoisonicotinamideHCID 2724699PyBOP

Product 1

HCID 580013202-[2-(2,4,5-Trichloro-phenoxy)-acetylamino]-isonicotinamideYield 41.1%

Reagents, catalysts & solvents 2

HCID 142844-(Dimethylamino)pyridineCatalystHCID 6228DimethylformamideSolvent

Procedure

To solution of (2,4,5-trichloro-phenoxyacetic acid (100 mg, 0.39 mmol), 2-amino isonicotinamide (107 mg, 0.78 mmol) and DMAP (96.22 mg, 0.78 mmol) in DMF 12 ml was added PyBOP (409.7 mg, 0.78 mmol), and stirred room temperature. Reaction mixture was poured onto ice cold water, diluted by methanol/MC mixture (10%). The organic phase was separated, sequentially washed with aqueous sodium bicarbonate, brine and water, dried over anhydrous MgSO4, and concentrated. The residue was purified by PLC (EtoAC:Hexane:MeOH=3:6:1-2:4:1) to afford 2-[2-(2,4,5-trichloro-phenoxy)-acetylamino]-isonicotinamide as a colorless solid (0.06 g, 41% yield).

Workup

  1. customReaction mixture
  2. additionwas poured onto ice cold water
  3. customThe organic phase was separated
  4. washsequentially washed with aqueous sodium bicarbonate, brine and water
  5. dry with materialdried over anhydrous MgSO4
  6. concentrationconcentrated
  7. customThe residue was purified by PLC (EtoAC:Hexane:MeOH=3:6:1-2:4:1)

Sources & evidence

ORD record
ord-474952af8a0f467a9705947702d17dea
Source dataset
uspto-grants-2013_03
Patent number
US08394799B2

Linked notes

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