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ChemicalBook CAS DataBase List 4-Amino-3-chlorobenzenesulfonic acid
98-35-1

4-Amino-3-chlorobenzenesulfonic acid synthesis

2synthesis methods
-

Yield:-

Steps:

5 2-Chloroaniline-4-sulphonic acid

EXAMPLE 5 2-Chloroaniline-4-sulphonic acid Starting from 293.5 g of 2-chloroaniline, 460 ml of o-dichlorobenzene and 225.5 g of monohydrate, the reaction was performed as in Example 4. After 4.3 hours at 200° C., the mixture was cooled, filtered off with suction and dried. The isolated solid weighed 489.3 g and contained 51.1% of 2-chloroaniline-4-sulphonic acid, based on the use of 2-chloroaniline, with a selectivity of 100%.

References:

US4968835,1990,A

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