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HETEROGENEOUS AND CATALYTIC THIOCYANATION OF AROMATIC COMPOUNDS IN AQUEOUS MEDIA
被引:33
作者:
Zolfigol, Mohammad Ali
[1
]
Khazaei, Ardeshir
[1
]
Mokhlesi, Mohammad
[1
]
Vahedi, Hoshang
[2
]
Sajadifar, Sami
[1
,2
]
Pirveysian, Mahtab
[1
]
机构:
[1] Bu Ali Sina Univ, Fac Chem, Hamadan, Iran
[2] Payame Noor Univ, Dept Chem, Tehran 193954697, Iran
关键词:
Silica sulfuric acid;
silica boron sulfonic acid;
thiocyanation;
water;
heterogeneous;
SILICA SULFURIC-ACID;
CARBONYL-COMPOUNDS;
SULFONIC-ACID;
AMMONIUM THIOCYANATE;
ARYL THIOCYANATES;
REGIOSELECTIVE THIOCYANATION;
ELECTROPHILIC THIOCYANATION;
FUNCTIONALIZED SILICA;
EFFICIENT;
OXIDATION;
D O I:
10.1080/10426507.2011.610846
中图分类号:
O61 [无机化学];
学科分类号:
070301 ;
081704 ;
摘要:
This article describes a highly efficient heterogeneous catalytic thiocyanation of indoles, substituted anilines (electron rich and electron deficient) and N-substituted aromatic amines in water under mild and green conditions. The reaction of substrates with KSCN in the presence of silica sulfuric acid (SSA) and silica boron sulfonic acid (SBSA) as heterogeneous catalysts and H2O2 or UHP (urea hydrogen peroxide) as green oxidants produces aryl thiocyanates in short reaction times and high yields. Moreover, in this article, some novel aryl thiocyanates were synthesized.
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页码:295 / 304
页数:10
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