Tandem Synthesis of ۲,۳,۴,۵-Tetrasubstituted Pyrroles from Aromatic Aldehydes Using Diethylene Glycol-bis(۳-methylimidazolium) Dihydroxide as an Efficient Catalyst
عنوان مقاله: Tandem Synthesis of ۲,۳,۴,۵-Tetrasubstituted Pyrroles from Aromatic Aldehydes Using Diethylene Glycol-bis(۳-methylimidazolium) Dihydroxide as an Efficient Catalyst
شناسه ملی مقاله: JR_ORGC-2-1_002
منتشر شده در در سال 1395
شناسه ملی مقاله: JR_ORGC-2-1_002
منتشر شده در در سال 1395
مشخصات نویسندگان مقاله:
Khodabakhsh Niknam - Persian Gulf University
Mohsen Khataminejad - Persian Gulf University
خلاصه مقاله:
Khodabakhsh Niknam - Persian Gulf University
Mohsen Khataminejad - Persian Gulf University
A sequential process strategy was introduced for the synthesis of ۲,۳,۴,۵-tetrasubstituted pyrroles by the formation of benzoin from the corresponding aromatic aldehyde and followed by condensation reaction with ۱,۳-dicarbonyl compounds and ammonium acetate in the presence of diethylene glycol-bis(۳-methylimidazolium) dihydroxide as catalyst in refluxing ethanol. The recycled catalyst could be reused four times without appreciable loss in the catalytic activity.
کلمات کلیدی: Ionic Liquids, Pyrroles, Sequential process synthesis, Aromatic aldehydes, Catalyst
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1766365/