iron ore pellet, a natural and reusable catalyst for synthesis of pyrano[2,3-d]pyrimidine and dihydropyrano[c]chromene derivatives in aqueous media

نویسندگان

enayatollah sheikhhosseini

tayebeh sattaei mokhtari

malihe faryabi

adeleh rafiepour

shahla soltaninejad

چکیده

we wish to report a mild and efficient one-pot three-component reaction of an aryl aldehyde, malononitrile and barbituric acid or 4-hydroxycoumarinfor the synthesis ofpyrano[2,3-d]pyrimidine and dihydropyrano[c]chromene derivatives in the presence of iron ore pellet as a natural and reusable catalyst under heterogeneous and green conditions. the present methodology offers several advantages such as excellent yields, simple procedure and work up steps, short reaction times and easy recovery of the catalyst. we have also demonstrated that the catalyst can be reused successfully after six times using the same catalyst with high yields. use of water as the reaction medium makes the process environmentally benign.

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Iron Ore Pellet, A Natural and Reusable Catalyst for Synthesis of Pyrano[2,3-d]pyrimidine and Dihydropyrano[c]chromene Derivatives in Aqueous Media

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عنوان ژورنال:
iranian journal of chemistry and chemical engineering (ijcce)

ناشر: iranian institute of research and development in chemical industries (irdci)-acecr

ISSN 1021-9986

دوره 35

شماره 1 2016

کلمات کلیدی
[ ' n a t u r a l c a t a l y s t ' , ' p y r a n o [ 2 ' , 3 , ' d ] p y r i m i d i n e ' , ' d i h y d r o p y r a n o [ c ] c h r o m e n e ' , ' a q u e o u s m e d i a ' , ' h e t e r o g e n e o u s c a t a l y s t ' ]

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