Efficient Tosylation of Dihydroxybenzenes in a Two-Phase Water–Dichloromethane System

The effect of the structure of the catalyst and the type of base on the reaction rate and product yield of the tosylation of dihydroxybenzenes in a two-phase water–dichloromethane system in the presence of pyridine N-oxide derivatives was demonstrated. It was found that with 4-dimethylaminopyridine...

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Bibliographic Details
Published in:Theoretical and experimental chemistry 2020-03, Vol.56 (1), p.46-49
Main Authors: Anishchenko, V. N., Redko, A. N., Rybachenko, V. I.
Format: Article
Language:English
Subjects:
Carbonates
Catalysis
Chemical tests and reagents
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Dichloromethane
Dihydroxybenzenes
Potassium carbonate
Pyridine
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Summary:The effect of the structure of the catalyst and the type of base on the reaction rate and product yield of the tosylation of dihydroxybenzenes in a two-phase water–dichloromethane system in the presence of pyridine N-oxide derivatives was demonstrated. It was found that with 4-dimethylaminopyridine N-oxide and potassium carbonate it is possible to obtain dihydroxybenzene tosylates with yields of more than 90%.
ISSN:0040-5760
1573-935X
DOI:10.1007/s11237-020-09639-1