lithium bromide (LiBr);
quinoxaline;
1,2-diamine;
1,2-diketone;
green chemistry;
SOLVENT-FREE CONDITIONS;
REUSABLE CATALYST;
HIGHLY EFFICIENT;
FACILE SYNTHESIS;
REGIOSELECTIVE SYNTHESIS;
BIOLOGICAL EVALUATION;
ORGANIC-REACTIONS;
ADDITION-REACTION;
MICHAEL ADDITION;
ANTITUMOR AGENT;
D O I:
10.1080/17518251003619192
中图分类号:
O6 [化学];
学科分类号:
0703 ;
摘要:
An efficient, simple, and green procedure for the synthesis of quinoxaline derivatives is described. The condensation of 1,2-diamines with 1,2-diketones using lithium bromide (LiBr) in H(2)O/EtOH as a green reaction media at room temperature affords the title compounds in high to excellent yields and in short reaction times. [GRAPHICS] .