Benzyl Alcohol → 3-(2-Cyanophenyl)-5-(2-pyridyl)-1-benzyl-1,2-dihydropyridin-2-one

HRID 497833Notes

Reaction equation

HRID 497833 reaction equation
[C:1]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[C:10](=[O:21])[NH:11][CH:12]=[C:13]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][N:16]=2)[CH:14]=1)#[N:2].[CH2:22](O)[C:23]1[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=1.C1(P(C2C=CC=CC=2)C2C=CC=CC=2)C=CC=CC=1.CCOC(/N=N/C(OCC)=O)=O>O1CCCC1.C1(C)C=CC=CC=1>[C:1]([C:3]1[CH:8]=[CH:7][CH:6]=[CH:5][C:4]=1[C:9]1[C:10](=[O:21])[N:11]([CH2:22][C:23]2[CH:28]=[CH:27][CH:26]=[CH:25][CH:24]=2)[CH:12]=[C:13]([C:15]2[CH:20]=[CH:19][CH:18]=[CH:17][N:16]=2)[CH:14]=1)#[N:2]

Participants

7

Reactant 4

HCID 244Benzyl AlcoholHCID 11776TriphenylphosphineHCID 5462977Diethyl azodicarboxylateHCID 223189453-(2-Cyanophenyl)-5-(2-pyridyl)-2(1H)-pyridone

Product 1

HCID 99689943-(2-Cyanophenyl)-5-(2-pyridyl)-1-benzyl-1,2-dihydropyridin-2-oneYield 19.6%

Reagents, catalysts & solvents 2

HCID 1140TolueneSolventHCID 8028TetrahydrofuranSolvent

Procedure

3-(2-Cyanophenyl)-5-(2-pyridyl)-2(1H)-pyridone (46 mg), 36 mg of benzyl alcohol and 88 mg of triphenylphosphine were dissolved in 2 ml of tetrahydrofuran, 147 mg of a 40% solution of diethylazo dicarboxylate in toluene were added with ice cooling and the mixture was stirred at room temperature for 1 hour. The reaction solution was concentrated in vacuo and purified by a silica gel chromatography (hexane-ethyl acetate system) to give 12 mg of the title compound.

Workup

  1. concentrationThe reaction solution was concentrated in vacuo
  2. custompurified by a silica gel chromatography (hexane-ethyl acetate system)

Sources & evidence

ORD record
ord-ffe2c859c95f4de88670f861da73e627
Source dataset
uspto-grants-2005_09
Patent number
US06949571B2

Reaction notes

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