a study for the synthesis of dibenzo [a,j] xanthenes and 1-amidoalkyl 2-naphthols catalyzed by [hmim][hso4] as a green, efficient and reusable catalyst under solventfree conditions

نویسندگان

leila khazdooz

amin zarei

abdol r. hajipour

nafisehsadat sheikhan

چکیده

a convenient and efficient procedure for the synthesis of 14-aryl or alkyl-14h-dibenzo[a,j]xanthenes by condensation of 2-naphthol and aldehydes in the presence of methylimidazolium hydrogensulfate, as a brönsted acidic ionic liquid ([hmim]hso4), is described. both aromatic and aliphatic aldehydes reactedeasily to afford the corresponding 14-aryl or alkyl-14h-dibenzo[a,j]xanthenes in good yields under solvent-free conditions. moreover, the synthesis of 1-amidoalkyl 2-naphthols is studied by condensation of aromatic aldehydes with amides or urea and 2-naphthol in the presence of [hmim]hso4. using solventfreeconditions, non-toxic and inexpensive materials, simple and clean work-up, short reaction times and high yields of the products are the advantages of this method.

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منابع مشابه

A study for the synthesis of dibenzo [a,j] xanthenes and 1-amidoalkyl 2-naphthols catalyzed by [Hmim][HSO4] as a green, efficient and reusable catalyst under solventfree conditions

A convenient and efficient procedure for the synthesis of 14-aryl or alkyl-14H-dibenzo[a,j]xanthenes by condensation of 2-naphthol and aldehydes in the presence of Methylimidazolium hydrogensulfate, as a Brönsted acidic ionic liquid ([Hmim]HSO4), is described. Both aromatic and aliphatic aldehydes reacted easily to afford the corresponding 14-aryl or alkyl-14H-dibenzo[a,j]xanthenes in good yiel...

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A study for the synthesis of dibenzo [a,j] xanthenes and 1-amidoalkyl 2-naphthols catalyzed by [Hmim][HSO4] as a green, efficient and reusable catalyst under solventfree conditions

A convenient and efficient procedure for the synthesis of 14-aryl or alkyl-14H-dibenzo[a,j]xanthenes by condensation of 2-naphthol and aldehydes in the presence of Methylimidazolium hydrogensulfate, as a Brönsted acidic ionic liquid ([Hmim]HSO4), is described. Both aromatic and aliphatic aldehydes reacted easily to afford the corresponding 14-aryl or alkyl-14H-dibenzo[a,j]xanthenes in good yiel...

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A fast, simple and convenient procedure for the synthesis of fused pyrimidinone derivatives by using [Hmim][HSO4] as a green, efficient and reusable catalyst under solvent-free conditions

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عنوان ژورنال:
iranian journal of catalysis

ناشر: islamic azad university, shahreza branch

ISSN 2252-0236

دوره 1

شماره 1 2011

کلمات کلیدی
[ ' m e t h y l i m i d a z o l i u m h y d r o g e n s u l f a t e ' , ' d i b e n z o x a n t h e n e ' , ' a m i d o a l k y l n a p h t h o l s ' , 2 , ' n a p h t h o l ' , ' a l d e h y d e ' ]

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