Fe۳O۴@Silica Sulfuric Acid Nanoparticles as a Magnetically Recoverable Solid Acid Catalyst for the Synthesis of ۲,۳-Dihydroquinazolin-۴(۱H)-ones
عنوان مقاله: Fe۳O۴@Silica Sulfuric Acid Nanoparticles as a Magnetically Recoverable Solid Acid Catalyst for the Synthesis of ۲,۳-Dihydroquinazolin-۴(۱H)-ones
شناسه ملی مقاله: JR_ORGC-3-2_001
منتشر شده در در سال 1396
شناسه ملی مقاله: JR_ORGC-3-2_001
منتشر شده در در سال 1396
مشخصات نویسندگان مقاله:
Monire Beyki - Department of Chemistry, Payame Noor University (PNU)
Mehdi Fallah-Mehrjardi - Department of Chemistry, Payame Noor University, Tehran, ۱۹۳۹۵-۴۶۹۷, Iran
خلاصه مقاله:
Monire Beyki - Department of Chemistry, Payame Noor University (PNU)
Mehdi Fallah-Mehrjardi - Department of Chemistry, Payame Noor University, Tehran, ۱۹۳۹۵-۴۶۹۷, Iran
A new efficient method for the synthesis of ۲,۳-dihydroquinazolin-۴(۱H)-ones and spiroquinazolinones via a condensation reaction of aldehydes and ketones with anthranilamide in the presence of nano Fe۳O۴@SiO۲-SO۳H as catalyst in ethanol has been described. The reactions are completed in short times, and the corresponding dihydroquinazolinones are produced with high yields. The present procedure has several advantages, including short reaction times, high yields of products, facile experiment, simple work-up, eco-friendly reaction conditions, and reusability of the catalyst. The catalyst could simply be separated and recovered by an external magnet and reused in subsequent reactions with no considerable loss in activity.
کلمات کلیدی: Fe۳O۴@SiO۲-SO۳H, Nanomagnetic solid acid, ۲, ۳-Dihydroquinazolin-۴(۱H)-ones, Anthranilamide, Cyclocondensation
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1766262/