The reaction between dry arenediazonium o-benzenedisulfonimides and sodium thioacetate or thiobenzoate in anhydrous acetonitrile at room temperature is an efficient and safe procedure, of general validity, for the preparation of S-aryl thiol esters. The products can be easily purified and the yields are always very high. Of the 28 considered examples, the average yield of the S-aryl thioacetates was 86% and that of the S-aryl thiobenzoates 88%. It was possible to recover, in good amount and from all the reactions, o-benzenedisulfonimide, reusable for the preparation of arenediazonium salts.
An Improved, General Procedure to S-Aryl Thiol Esters: A New Synthetic Application of Dry Arenediazonium o-Benzenedisulfonimides
BARBERO, Margherita;DEGANI, Jacopo;DUGHERA, Stefano;FOCHI, Rita
2003-01-01
Abstract
The reaction between dry arenediazonium o-benzenedisulfonimides and sodium thioacetate or thiobenzoate in anhydrous acetonitrile at room temperature is an efficient and safe procedure, of general validity, for the preparation of S-aryl thiol esters. The products can be easily purified and the yields are always very high. Of the 28 considered examples, the average yield of the S-aryl thioacetates was 86% and that of the S-aryl thiobenzoates 88%. It was possible to recover, in good amount and from all the reactions, o-benzenedisulfonimide, reusable for the preparation of arenediazonium salts.
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