SYNTHESIS OF 1,8-DIOXO-OCTAHYDROXANTHENES WITH THIAMINE CHLORIDE IN ECO-FRINDLY AND SOLVENT FREE CONDITION

Journal of Chemical Reactivity and Synthesis

مقاله 3، دوره 7، شماره 4، اسفند 2017، صفحه 23-28   

نوع مقاله: Research Article

نویسندگان

Bahram Pourhasan^{* 1}؛ Mohammad Mahmudi Hashemi²؛ Ali Ezabadi²

¹Department of chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran;

²Department of chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran

چکیده

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.

کلیدواژه‌ها

octahydroxanthene؛ thiamine chloride؛ Solvent-free؛ dimedon