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ChemicalBook CAS DataBase List 2-TOLUENESULFONIC ACID
88-20-0

2-TOLUENESULFONIC ACID synthesis

10synthesis methods
-

Yield:-

Reaction Conditions:

in toluene

Steps:

5 Example 5
Example 5 Toluene (27.0 parts) was added dropwise at 25° C. to 550 parts of 1,2-dichlorobenzene solution containing 71.0 parts of 1,3,5-triethylbenzene-2-sulfonic acid. The resulting solution was maintained at 80° C. for 4 hours for reaction. A sample was collected from the reaction mixture and analyzed by the HPLC external standard method with the result given below. Toluene=2.7 parts, conversion=90%. Toluene-4-sulfonic acid=39.7 pats, yield based on consumed toluene=87%. Toluene-2-sulfonic acid=5.9 parts, yield based on consumed toluene=13%.

References:

Konishi Chemical Ind. Co., Ltd. US5596128, 1997, A

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