Sodium hydride → HCID 21948156, compound

HRID 2183775Notes

Reaction equation

HRID 2183775 reaction equation
[NH:1]([C:8]([NH:20][C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)=[CH:9][C:10]([C:12]1[C:13](Cl)=[N:14][C:15]([Cl:18])=[CH:16][CH:17]=1)=[O:11])[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1.[H-].[Na+]>C1COCC1>[NH:1]([CH:8]1[CH2:9][C:10](=[O:11])[C:12]2[C:13](=[N:14][C:15]([Cl:18])=[CH:16][CH:17]=2)[N:20]1[C:21]1[CH:26]=[CH:25][CH:24]=[CH:23][CH:22]=1)[C:2]1[CH:7]=[CH:6][CH:5]=[CH:4][CH:3]=1

Participants

4

Reactant 2

HCID 24758Sodium hydrideHCID 21948204HCID 21948204, compound

Product 1

HCID 21948156HCID 21948156, compoundYield 68%

Reagents, catalysts & solvents 1

HCID 8028TetrahydrofuranSolvent

Conditions

Temperature
80 °C

Procedure

A mixture of 3,3-dianilino-1-(2,6-dichloro-3-pyridinyl)-2-propen-1-one (0.08 g, 0.21 mmol) and NaH (0.009 g, 0.23 mmol) in THF (6 mL) was heated to 80° C. overnight. The reaction was cooled, concentrated in vacuo, diluted with water and extracted with EtOAc. The combined organic extracts were washed with brine, dried over Na2SO4, and concentrated in vacuo. Silica gel flash chromatography of the residue using 3:1 Hex:EtOAc provided 2-anilino-7-chloro-1-phenyl-2,3-dihydro-1,8-naphthyridin-4(1H)-one (49 mg, 68%) as an off-white solid: LC-MS RT: 2.56 min, MH+: 348.2. This transformation can be accomplished by using the combination of other aprotic solvents such as dioxane and DMF with other bases such as t-BuOK.

Workup

  1. temperatureThe reaction was cooled
  2. concentrationconcentrated in vacuo
  3. additiondiluted with water
  4. extractionextracted with EtOAc
  5. washThe combined organic extracts were washed with brine
  6. dry with materialdried over Na2SO4
  7. concentrationconcentrated in vacuo

Sources & evidence

ORD record
ord-f75f2b5c4c3d4e0c891af9e32e6e99db
Source dataset
uspto-grants-2005_05
Patent number
US06900205B2

Reaction notes

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