Benzene → HCID 22766881, compound

HRID 1764459Notes

Reaction equation

HRID 1764459 reaction equation
[Cl:1][C:2]1[S:6][C:5]([N:7]=[C:8]=[O:9])=[N:4][CH:3]=1.C1C=CC=CC=1.[CH2:16]([NH:18][CH2:19][CH:20]=[O:21])[CH3:17]>C(O)C.O>[CH2:16]([N:18]([CH2:19][CH:20]=[O:21])[C:8]([NH:7][C:5]1[S:6][C:2]([Cl:1])=[CH:3][N:4]=1)=[O:9])[CH3:17]

Participants

5

Reactant 3

HCID 241BenzeneHCID 205484642-(Ethylamino)acetaldehydeHCID 23062251HCID 23062251, compound

Product 1

HCID 22766881HCID 22766881, compound

Reagents, catalysts & solvents 1

HCID 19096565Water ethanolSolvent

Procedure

5-Chlorothiazol-2-yl isocyanate dimer (17.0 grams), benzene (70 ml) and the dimethyl acetal of 2-ethylaminoacetaldehyde (13.5 grams) are charged into a glass reaction vessel equipped with a mechanical stirrer and thermometer. The reaction mixture is then stirred at room temperature for a period of about 1 hour. After this time the reaction mixture is filtered, and the filtrate is stripped of solvent under reduced pressure, leaving an oil. This oil is dissolved in an ethanol-water mixture, and the solution is filtered. The filtrate is then stripped of solvents under vacuum to yield the desired product the dimethyl acetal of 2-[1-ethyl-3-(5-chlorothiazol-2-yl)ureido]acetaldehyde.

Workup

  1. customequipped with a mechanical stirrer
  2. filtrationAfter this time the reaction mixture is filtered
  3. customleaving an oil
  4. filtrationthe solution is filtered

Sources & evidence

ORD record
ord-02fb3b82116d4a838c63d9d8cf1b7b88
Source dataset
uspto-grants-1978_09
Patent number
US04116969

Reaction notes

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