Premium
An Easy and Efficient Method for the Synthesis of Quinoxalines Using Recyclable and Heterogeneous Nanomagnetic‐Supported Acid Catalyst under Solvent‐Free Condition
Author(s) -
Harsha Kachigere B.,
Rangappa Shobith,
Preetham Habbanakuppe D.,
Swaroop Toreshettahally R.,
Gilandoust Maryam,
Rakesh Kodgahally S.,
Rangappa Kanchugarakoppal S.
Publication year - 2018
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201800053
Subject(s) - catalysis , yield (engineering) , solvent , reaction conditions , heterogeneous catalysis , chemistry , combinatorial chemistry , organic chemistry , chemical engineering , materials science , engineering , metallurgy
Synthesis of quinoxalines from o ‐phenylenediamines ( o ‐PDs) with electronically diversified 1,2‐diketones and α‐bromoketones via simple cyclocondensation reaction using an heterogeneous nano‐ϒ‐Fe 2 O 3 ‐SO 3 H catalyst has been reported under solvent free condition. Low cost, easy workup, high yield, operational simplicity, less reaction time, environmentally benign nature and catalyst is magnetically retrievable and can be reused up to five catalytic cycles without significant loss in the product yields are the noteworthy features of this protocol.