共 50 条
SULFAMIC ACID (H2NSO3H): A LOW-COST, MILD, AND EFFICIENT CATALYST FOR THE SYNTHESIS OF SUBSTITUTED N-PHENYLPYRAZOLES UNDER SOLVENT-FREE CONDITIONS
被引:18
|作者:
Shetty, Mohan R.
[1
]
Samant, Shriniwas D.
[1
]
机构:
[1] Inst Chem Technol, Dept Chem, Bombay 400019, Maharashtra, India
关键词:
N-Phenylpyrazoles;
solid acid catalysis;
sulfamic acid;
ROOM-TEMPERATURE SYNTHESIS;
REUSABLE CATALYST;
PYRAZOLES;
DIAZEPINES;
NITROOLEFINS;
HETEROCYCLES;
ENAMINONES;
D O I:
10.1080/00397911.2010.540365
中图分类号:
O62 [有机化学];
学科分类号:
070303 ;
081704 ;
摘要:
N-Phenylpyrazoles are synthesized by condensing phenylhydrazine and 1,3-diketones in the presence of a catalytic amount of sulfamic acid, a mild and an efficient solid acid catalyst, under solvent-free conditions. This condensation proceeds smoothly in shorter reaction time.
引用
收藏
页码:1411 / 1418
页数:8
相关论文