2-(Methylamino)acetaldehyde → 2-[1-Methyl-3-(5-methyl-1,3,4-thiadiazol-2-yl)ureido]acetaldehyde

HRID 1729950Notes

Reaction equation

HRID 1729950 reaction equation
[CH3:1][C:2]1[S:6][C:5]([N:7]=[C:8]=[O:9])=[N:4][N:3]=1.[CH3:10][NH:11][CH2:12][CH:13]=[O:14]>C1C=CC=CC=1>[CH3:10][N:11]([CH2:12][CH:13]=[O:14])[C:8]([NH:7][C:5]1[S:6][C:2]([CH3:1])=[N:3][N:4]=1)=[O:9]

Participants

4

Reactant 2

HCID 133161322-(Methylamino)acetaldehydeHCID 542820282-Isocyanato-5-methyl-1,3,4-thiadiazole

Product 1

HCID 203926712-[1-Methyl-3-(5-methyl-1,3,4-thiadiazol-2-yl)ureido]acetaldehyde

Reagents, catalysts & solvents 1

HCID 241BenzeneSolvent2×

Procedure

A mixture of 5-methyl-1,3,4-thiadiazol-2-yl isocyanate dimer (0.05 mole), the dimethyl acetal of 2-methylaminoacetaldehyde (0.1 mole) and benzene (60 ml) are charged into a glass reaction vessel equipped with a mechanical stirrer and reflux condenser. The reaction mixture is heated at reflux for a period of about 15 minutes. After this time the mixture is stripped of benzene under reduced pressure to yield a solid product as the residue. The residue is then recrystallized to yield the desired product dimethyl acetal of 2-[1-methyl-3-(5-methyl-1,3,4-thiadiazol-2-yl)ureido]-acetaldehyde.

Workup

  1. customequipped with a mechanical stirrer
  2. temperaturereflux condenser
  3. temperatureThe reaction mixture is heated
  4. temperatureat reflux for a period of about 15 minutes
  5. customto yield a solid product as the residue
  6. customThe residue is then recrystallized

Sources & evidence

ORD record
ord-136c34b92c904fada0fffdd957267238
Source dataset
uspto-grants-1976_11
Patent number
US03990882

Reaction notes

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