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Microwave-assisted multicomponent reaction for the synthesis of 2-amino-4H-chromene derivatives using ilmenite (FeTiO3) as a magnetic catalyst under solvent-free conditions

عنوان مقاله: Microwave-assisted multicomponent reaction for the synthesis of 2-amino-4H-chromene derivatives using ilmenite (FeTiO3) as a magnetic catalyst under solvent-free conditions
شناسه ملی مقاله: JR_AJGC-1-1_004
منتشر شده در شماره 1 دوره 1 فصل Summer در سال 1396
مشخصات نویسندگان مقاله:

Saeid Taghavi Fardood - Department of Chemistry, University of Zanjan, Zanjan, Iran
Ali Ramazani - Department of Chemistry, University of Zanjan, Zanjan, Iran
Pegah Azimzadeh Asiabi - Department of Chemistry, University of Zanjan, Zanjan, Iran
Yousef Bigdeli Fard - Department of Chemistry, Payame Noor University, Tehran, Iran

خلاصه مقاله:
A green and highly efficient method has been developed for the synthesis of 2-amino-4H-chromene derivatives in the presence of FeTiO3 as magnetic catalyst via one-pot three-component condensation reaction of aromatic aldehydes, malononitrile and α- or β-naphthol without solvent under microwave irradiation. Mild reaction conditions, short reaction times, simple work-up, use of an economically convenient catalyst, and excellent product yields are the advantageous features of this method. The catalyst can be easily recovered by a simple magnetic separation and can be recycled six times with no significant loss of catalytic activity.

کلمات کلیدی:
2-Amino-4H-Chromenes, Ilmenite, Three-component reaction, Microwave irradiation

صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/723245/