A green and efficient process for the synthesis of Benzothiazinones using Phosphate fertilizers MAP, DAP and TSP as heterogeneous catalysts
Open Access
- 20 October 2019
- journal article
- Published by The Turkish Chemical Society in Journal of the Turkish Chemical Society Section A: Chemistry
- Vol. 6 (3) , 349-354
Abstract
The aim of this work is to prove the efficiency of the Phosphate fertilizers mono-ammonium phosphate (MAP), di-ammonium phosphate (DAP) and triple-super phosphate (TSP) as a “green” heterogeneous catalysts for the synthesis of 2-aryl-2H-benzo[b][1,4]thiazin-3(4H)-ones via the C-S and C-N coupling process of gem-dicyano epoxide with α-aminothiophenol. To optimize the reaction conditions, the synthesis was conducted with a range of solvents, catalyst amounts and catalyst particle sizes. Also, the potential recyclability of the catalysts was confirmed by running the reaction using the recycled catalyst.Keywords
Funding Information
- University of Ibn Tofail
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