Pourhasan, B., Mahmudi Hashemi, M., Ezabadi, A. (2017). SYNTHESIS OF 1,8-DIOXO-OCTAHYDROXANTHENES WITH THIAMINE CHLORIDE IN ECO-FRINDLY AND SOLVENT FREE CONDITION. International Journal of Heterocyclic Chemistry, 7(4), 23-28.
Bahram Pourhasan; Mohammad Mahmudi Hashemi; Ali Ezabadi. "SYNTHESIS OF 1,8-DIOXO-OCTAHYDROXANTHENES WITH THIAMINE CHLORIDE IN ECO-FRINDLY AND SOLVENT FREE CONDITION". International Journal of Heterocyclic Chemistry, 7, 4, 2017, 23-28.
Pourhasan, B., Mahmudi Hashemi, M., Ezabadi, A. (2017). 'SYNTHESIS OF 1,8-DIOXO-OCTAHYDROXANTHENES WITH THIAMINE CHLORIDE IN ECO-FRINDLY AND SOLVENT FREE CONDITION', International Journal of Heterocyclic Chemistry, 7(4), pp. 23-28.
Pourhasan, B., Mahmudi Hashemi, M., Ezabadi, A. SYNTHESIS OF 1,8-DIOXO-OCTAHYDROXANTHENES WITH THIAMINE CHLORIDE IN ECO-FRINDLY AND SOLVENT FREE CONDITION. International Journal of Heterocyclic Chemistry, 2017; 7(4): 23-28.
SYNTHESIS OF 1,8-DIOXO-OCTAHYDROXANTHENES WITH THIAMINE CHLORIDE IN ECO-FRINDLY AND SOLVENT FREE CONDITION
1Department of chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran;
2Department of chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran
Abstract
A novel, simple and environmentally friendly method is reported for the preparation of 1,8-dioxo-octahydroxanthene derivatives by the reaction of dimedon with various aromatic aldehydes, using thiamine chloride as a recyclable catalyst under solvent-free conditions. This procedure has following benefits; simple workup, moderate reaction times, good yields, and completely compatible with environment.
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