Benzene → HCID 22766846, compound

Reaction equation

[I: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:19][CH2:20][CH:21]=[O:22])[C:17]#[CH:18]>C(O)C.O>[CH2:16]([N:19]([CH2:20][CH:21]=[O:22])[C:8]([NH:7][C:5]1[S:6][C:2]([I:1])=[CH:3][N:4]=1)=[O:9])[C:17]#[CH:18]

Participants

Procedure

5-Iodothiazol-2-yl isocyanate dimer (17.0 grams), benzene (70 ml) and the dimethyl acetal of 2-propargylaminoacetaldehyde (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-propargyl-3-(5-iodothiazol-2-yl)ureido]acetaldehyde.