Dimethylformamide → 2-[4-(4-Acetoxybenzoyl)benzylthio]-3,5-dimethylthieno[2,3-d]pyrimidin-4(3H)-one

HRID 1291339Notes

Reaction equation

HRID 1291339 reaction equation
[CH3:1][N:2]1[C:7](=[O:8])[C:6]2[C:9]([CH3:12])=[CH:10][S:11][C:5]=2[N:4]=[C:3]1[SH:13].[OH-].[Na+].O.CN(C=O)C.[C:22]([O:25][C:26]1[CH:41]=[CH:40][C:29]([C:30]([C:32]2[CH:39]=[CH:38][C:35]([CH2:36]Br)=[CH:34][CH:33]=2)=[O:31])=[CH:28][CH:27]=1)(=[O:24])[CH3:23]>C(O)C.O>[C:22]([O:25][C:26]1[CH:41]=[CH:40][C:29]([C:30]([C:32]2[CH:33]=[CH:34][C:35]([CH2:36][S:13][C:3]3[N:2]([CH3:1])[C:7](=[O:8])[C:6]4[C:9]([CH3:12])=[CH:10][S:11][C:5]=4[N:4]=3)=[CH:38][CH:39]=2)=[O:31])=[CH:28][CH:27]=1)(=[O:24])[CH3:23]

Participants

7

Reactant 4

HCID 6228DimethylformamideHCID 189192074-(4-Acetoxybenzoyl)benzyl bromideHCID 23719242Sodium hydroxide--water (1/1/1)HCID 178431876HCID 178431876, compound

Product 1

HCID 189192392-[4-(4-Acetoxybenzoyl)benzylthio]-3,5-dimethylthieno[2,3-d]pyrimidin-4(3H)-oneYield 29%

Reagents, catalysts & solvents 2

HCID 702EthanolSolventHCID 962WaterSolvent

Conditions

Temperature
60 °C

Procedure

To a solution of 3,5-dimethyl-2-mercaptothieno[2,3-d]pyrimidin-4(3H)-one (1.40 g) and 1N-sodium hydroxide/water (6.7 ml) in ethanol (13 ml)-DMF (25 ml) was added 4-(4-acetoxybenzoyl)benzyl bromide (2.68 g) and the mixture was stirred at room temperature at 60° C. for 1 hour. This reaction mixture was poured in water and extracted with ethyl acetate. The extract was washed with water, dried, and concentrated, and the residue was recrystallized from methanol to provide the title compound as colorless solid (887 mg).

Workup

  1. extractionextracted with ethyl acetate
  2. washThe extract was washed with water
  3. customdried
  4. concentrationconcentrated
  5. customthe residue was recrystallized from methanol

Sources & evidence

ORD record
ord-ef82eec2593b49b6b179ab00753fd34a
Source dataset
uspto-grants-1998_05
Patent number
US05753664

Reaction notes

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