کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5142084 | 1496026 | 2017 | 14 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Phosphoric acid supported on alumina: A useful and effective heterogeneous catalyst in the preparation of α-amidoalkyl-β-naphthols, α-carbamato-alkyl-β-naphthols, and 2-arylbenzothiazoles
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Phosphoric acid supported on alumina (H3PO4/Al2O3) is found to be an efficient catalyst for the three-component condensation reaction of β-naphthol, aromatic aldehydes and amides or carbamates to afford the corresponding α-amidoalkyl-β-naphthols, α-carbamato-alkyl-β-naphthols under solvent-free conditions. In addition, the preparation of 2-arylbenzothiazoles from the reaction of aromatic aldehydes and 2-aminothiophenol was described under mild and solvent-free conditions. The remarkable features of these catalytic procedures are high conversions, shorter reaction times, cleaner reaction, simple experimental, and work-up procedures. Phosphoric acid supported on alumina as catalyst can be reused several times without significant loss of its catalytic activity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Arabian Journal of Chemistry - Volume 10, Supplement 1, February 2017, Pages S42-S55
Journal: Arabian Journal of Chemistry - Volume 10, Supplement 1, February 2017, Pages S42-S55
نویسندگان
Hamid Reza Shaterian, Kobra Azizi, Nafiseh Fahimi,