Benzoic Acid → 5-[4-[2-[4-Methyl-2-propyl-6-oxo-1,6-dihydropyrimidin-1-yl]ethoxy]phenylmethylene]thiazolidine-2,4-dione

HRID 842005Notes

Reaction equation

HRID 842005 reaction equation
[CH3:1][C:2]1[N:3]=[C:4]([CH2:20][CH2:21][CH3:22])[N:5]([CH2:9][CH2:10][O:11][C:12]2[CH:19]=[CH:18][C:15]([CH:16]=O)=[CH:14][CH:13]=2)[C:6](=[O:8])[CH:7]=1.[S:23]1[CH2:27][C:26](=[O:28])[NH:25][C:24]1=[O:29].C(O)(=O)C1C=CC=CC=1.N1CCCCC1>C1(C)C=CC=CC=1.O>[CH3:1][C:2]1[N:3]=[C:4]([CH2:20][CH2:21][CH3:22])[N:5]([CH2:9][CH2:10][O:11][C:12]2[CH:19]=[CH:18][C:15]([CH:16]=[C:27]3[S:23][C:24](=[O:29])[NH:25][C:26]3=[O:28])=[CH:14][CH:13]=2)[C:6](=[O:8])[CH:7]=1

Participants

7

Reactant 4

HCID 243Benzoic AcidHCID 5437ThiazolidinedioneHCID 8082PiperidineHCID 118227094-[2-[4-Methyl-2-propyl-6-oxo 1,6-dihydro-1-pyrimidinyl]ethoxy]benzaldehyde

Product 1

HCID 539648275-[4-[2-[4-Methyl-2-propyl-6-oxo-1,6-dihydropyrimidin-1-yl]ethoxy]phenylmethylene]thiazolidine-2,4-dioneYield 125.7%

Reagents, catalysts & solvents 2

HCID 962WaterSolventHCID 1140TolueneSolvent

Procedure

A mixture of 4-[2-[4-methyl-2-propyl-6-oxo-1,6-dihydro-1-pyrimidinyl]ethoxy]benzaldehyde (10 g, 24.5 mmol) (obtained from preparation 1), thiazolidine-2,4-dione (3.5 g, 30 mmol), benzoic acid (388 mg, 3.18 mmol) and piperidine (352 μl, 303 mg, 3.68 mmol) in toluene (50 ml) was refluxed for 1 h with continuous removal of water. The reaction mixture was cooled to room temperature and the resultant crystalline compound was filtered and washed with water and dried to afford the title compound (12.3 g, 99%), mp 240-242° C.

Workup

  1. filtrationthe resultant crystalline compound was filtered
  2. washwashed with water
  3. customdried

Sources & evidence

ORD record
ord-466ef6e4ce284f94a78c4c02183fc704
Source dataset
uspto-grants-2002_04
Patent number
US06372750B2

Reaction notes

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