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2,6-pyridinedicarboxylic acid as an efficient and mild organocatalyst for the one-pot synthesis of xanthene derivative
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نویسنده
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rezayati sobhan ,mirzajanzadeh ehsan ,seifournia hamed
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منبع
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asian journal of green chemistry - 2017 - دوره : 1 - شماره : 1 - صفحه:24 -33
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چکیده
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Simple and efficient protocols have been developed for the one-pot synthesis of aryl-14h-dibenzo[a,j]xanthenes and 1,8-dioxo-octahydro- xanthenes. (i) a cost-effective, simple and convenient procedure for the synthesis of aryl-14h-dibenzo[a,j]xanthenes has been developed via a one-pot condensation from substituted benzaldehydes (1 equiv) and β- naphthol (2 equiv) in the presence of 2,6-pyridinedicarboxylic acid (2,6- pdca) under solvent-free conditions. (ii) the one-pot condensation of substituted benzaldehydes (1 equiv) and 5,5-dimethyl-1,3- cyclohexanedione (dimedone) (2 equiv) in the presence of 2,6- pyridinedicarboxylic acid (2,6-pdca) under solvent-free conditions leads to 1,8-dioxo-octahydro-xanthenes. in these protocols several advantages such as: excellent yields, very short reaction times, easy work-up, simple methodology are offered.
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کلیدواژه
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6-pdca ,organocatalyst ,14-aryl-14h-dibenzo[a ,j]xanthenes ,8-dioxo-octahydro-xanthenes ,solvent-free conditions
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آدرس
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payame noor university, department of chemistry, ایران, islamic azad university, qaemshahr branch, department of chemistry, ایران, islamic azad university, qaemshahr branch, department of chemistry, ایران
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پست الکترونیکی
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hamed.seifournia@yahoo.com
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Authors
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