Diphosgene → HCID 22348338, compound
Reaction equation
[CH3:1][N:2]1[CH2:7][CH2:6][N:5]([S:8]([C:11]2[CH:17]=[CH:16][C:14]([NH2:15])=[CH:13][CH:12]=2)(=[O:10])=[O:9])[CH2:4][CH2:3]1.Cl[C:19]([O:22]C(Cl)=O)(Cl)Cl>C1C=CC=CC=1>[CH3:1][N:2]1[CH2:7][CH2:6][N:5]([S:8]([C:11]2[CH:17]=[CH:16][C:14]([N:15]=[C:19]=[O:22])=[CH:13][CH:12]=2)(=[O:10])=[O:9])[CH2:4][CH2:3]1Participants
4
Reactant 2
Product 1
Reagents, catalysts & solvents 1
Procedure
4-(4-Methylpiperazin-1-sulfonyl)aniline (0.5 g, 1.96 mmol) dissolved in anhydrous benzene was added dropwise to a solution of trichloromethylchloroformate (0.3 mL, 2.35 mmol) in anhydrous benzene at −10° C. The mixture was warmed to room temperature for 10 minutes, then heated to 90° C. for 2 h. The mixture was concentrated under reduced pressure to provide 4-[(4-methylpiperazin-1-yl)sulfonyl]phenyl isocyanate as a solid, used as an intermediate in the production of Compound 105. IR: 1166, 1339, 2265 cm1.