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Sulfur-Catalyzed Oxidative Condensation of Aryl Alkyl Ketones with o-Phenylenediamines: Access to Quinoxalines
被引:16
|作者:
Nguyen, Le Anh
[2
,3
]
Nguyen, Thi Thu Tram
[4
]
Ngo, Quoc Anh
[2
,3
]
Nguyen, Thanh Binh
[1
]
机构:
[1] Univ Paris Sud, Univ Paris Saclay, CNRS UPR 2301, Inst Chim Subst Naturelles, 1 Ave Terrasse, F-91198 Gif Sur Yvette, France
[2] Vietnam Acad Sci & Technol, Inst Chem, 18 Hoang Quoc Viet, Hanoi, Vietnam
[3] Vietnam Acad Sci & Technol, Grad Univ Sci & Technol, 18 Hoang Quoc Viet, Hanoi, Vietnam
[4] Can Tho Univ Med & Pharm, Fac Sci, Dept Chem, Can Tho, Vietnam
关键词:
sulfur catalysis;
quinoxaline;
DMSO;
ELEMENTAL SULFUR;
DERIVATIVES;
THIOAMIDES;
PHENAZINES;
DESIGN;
ALPHA;
UNIT;
D O I:
10.1002/adsc.202200527
中图分类号:
O69 [应用化学];
学科分类号:
081704 ;
摘要:
While elemental sulfur has been largely used as oxidant or sulfurating agent, its role as a catalyst has not been developed. We report here its catalytic activity in the oxidative condensation of o-phenylenediamines with acetophenones in DMSO to provide quinoxalines. The method was also extended to alpha-tetralones, propiophenones (R = Me) as well as higher homologues (R = Et, n-Pr) in place of acetophenones, leading to a wide range of naphthoquinoxalines and 3-substituted 2-arylquinoxalines.
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页码:2748 / 2752
页数:5
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