p-Anisoyl chloride → tetrahydro-1-(5-t-butyl-1,3,4-thiadiazol-2-yl)-3-methyl-6-(4-methoxybenzoyloxy)-2(1 H)-pyrimidinone

HRID 435546Notes

Reaction equation

HRID 435546 reaction equation
[C:1]([C:5]1[S:9][C:8]([N:10]2[CH:15]([OH:16])[CH2:14][CH2:13][N:12]([CH3:17])[C:11]2=[O:18])=[N:7][N:6]=1)([CH3:4])([CH3:3])[CH3:2].C(N(CC)CC)C.[CH3:26][O:27][C:28]1[CH:36]=[CH:35][C:31]([C:32](Cl)=[O:33])=[CH:30][CH:29]=1>C1C=CC=CC=1>[C:1]([C:5]1[S:9][C:8]([N:10]2[CH:15]([O:16][C:32](=[O:33])[C:31]3[CH:35]=[CH:36][C:28]([O:27][CH3:26])=[CH:29][CH:30]=3)[CH2:14][CH2:13][N:12]([CH3:17])[C:11]2=[O:18])=[N:7][N:6]=1)([CH3:4])([CH3:2])[CH3:3]

Participants

5

Reactant 3

HCID 7477p-Anisoyl chlorideHCID 8471TriethylamineHCID 21400082tetrahydro-1-(5-t-butyl-1,3,4-thiadiazol-2-yl)-3-methyl-6-hydroxy-2(1H)-pyrimidinone

Product 1

HCID 21455432tetrahydro-1-(5-t-butyl-1,3,4-thiadiazol-2-yl)-3-methyl-6-(4-methoxybenzoyloxy)-2(1 H)-pyrimidinone

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent

Procedure

Tetrahydro-1-(5-t-butyl-1,3,4-thiadiazol-2-yl)-3 -methyl-6-hydroxy-2(1H)-pyrimidinone (0.05 mole), triethylamine (0.06 mole) and benzene (50 ml) are charged into a glass reaction vessel equipped with a mechanical stirrer, thermometer and reflux condenser. 4-Methoxybenzoyl chloride (0.05 mole) is then added dropwise with stirring. After the addition is completed, the reaction mixture is heated at reflux with continued stirring for a period of about 30 minutes. After this time the reaction mixture is filtered and the filtrate is stripped of solvent under reduced pressure to yield the desired product tetrahydro-1-(5-t-butyl-1,3,4 -thiadiazol-2-yl)-3-methyl-6-(4-methoxybenzoyloxy)-2(1 H)-pyrimidinone.

Workup

  1. customequipped with a mechanical stirrer
  2. temperaturethermometer and reflux condenser
  3. additionAfter the addition
  4. temperaturethe reaction mixture is heated
  5. temperatureat reflux
  6. stirringwith continued stirring for a period of about 30 minutes
  7. filtrationAfter this time the reaction mixture is filtered

Sources & evidence

ORD record
ord-73ea23cf65e94a7f8c316530d1bc0214
Source dataset
uspto-grants-1977_02
Patent number
US04006009

Reaction notes

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