Phosgene → 3-Chloro-4-isocyanatobenzenesulfonamide
Reaction equation
[C:1](Cl)(Cl)=[O:2].[NH2:5][C:6]1[CH:11]=[CH:10][C:9]([S:12]([NH2:15])(=[O:14])=[O:13])=[CH:8][C:7]=1[Cl:16].C(N(C(C)C)C(C)C)C>ClCCl>[Cl:16][C:7]1[CH:8]=[C:9]([S:12]([NH2:15])(=[O:13])=[O:14])[CH:10]=[CH:11][C:6]=1[N:5]=[C:1]=[O:2]Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
In a round bottom flask containing a solution of phosgene (1.573 mL) in dichloromethane (5 mL) was added 4-amino-3-chlorobenzenesulfonamide (0.206 g) and N-ethyl-N-isopropylpropan-2-amine (0.521 mL). The resulting clear solution was stirred at room temperature overnight. The mixture was concentrated and further dried under vacuum to provide the title compound.
Workup
- concentrationThe mixture was concentrated
- customfurther dried under vacuum
Sources & evidence
- ORD record
- ord-fcd284f0b72a441d803185f2fe936b53
- Source dataset
- uspto-grants-2015_05
- Patent number
- US09034875B2
Reaction notes
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