مشخصات پژوهش

خانه /Preparation of various ...
عنوان
Preparation of various xanthene derivatives over sulfonic acid functionalized imidazolium salts (SAFIS) as novel, highly efcient and reusable catalysts
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چکیده
In this work, some novel sulfonic acid functionalized imidazolium salts (SAFIS), as a new category of ionic liquids, are synthesized by eco-friendly and simple procedures, and used as highly ef?cient and reusable catalysts to promote the following one-pot multicomponent organic transformations under solvent-free conditions: (i) the synthesis of 14-aryl14H-dibenzo[a,j]xanthenes from b-naphthol (2 eq.) and arylaldehydes (1 eq.), (ii) the preparation of tetrahydrobenzo[a]xanthene-11-ones from b-naphthol, arylaldehydes and dimedone, and (iii) the synthesis of 1,8-dioxo-octahydroxanthenes from dimedone (2 eq.) and aromatic aldehydes (1 eq.). Environmentally benign, simple methodologies, easy workup procedure, clean reaction, short reaction time, high yield and easy preparation of the catalysts are some advantages ofthis work.
پژوهشگران محمد علی زلفی گل (نفر اول)، وحید خاکی زاده (نفر دوم)، احمدرضا موسوی زارع (نفر سوم)، عبدالکریم زارع (نفر چهارم)، سیده بهاره عظیمی (نفر پنجم)، علیرضا حسنی نژاد (نفر ششم به بعد)، ژیلا اصغری (نفر ششم به بعد)