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trityl bromide versus nano-magnetic catalyst in the synthesis of henna-based xanthenes and bis-coumarins
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نویسنده
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zarei mahmoud ,zolfigol mohammad ali ,moosavi-zare ahmad reza ,noroozizadeh ehsan
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منبع
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journal of the iranian chemical society - 2017 - دوره : 14 - شماره : 10 - صفحه:2187 -2198
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چکیده
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In this work, trityl bromide (trbr) as a new, efficient, mild and neutral catalyst was used for the synthesis of henna-based xanthenes (aryl-5h-dibenzo[b,i]xanthene-5,7,12,14(13h)-tetraones) and bis-coumarins by in situ generation of trityl carbocation under solvent-free conditions in comparison with [fe3o4@sio2@(ch2)3-im-so3h]cl as an acidic and reusable catalyst for the first time.
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کلیدواژه
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trityl bromide ,[fe3o4@sio2@(ch2)3-im-so3h]cl ,bis-coumarin ,henna-based xanthene ,organocatalyst
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آدرس
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bu-ali sina university, faculty of chemistry, department of organic chemistry, iran, bu-ali sina university, faculty of chemistry, department of organic chemistry, iran, sayyed jamaleddin asadabadi university, iran, bu-ali sina university, faculty of chemistry, department of organic chemistry, iran
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Authors
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