Efficient synthesis of novel 9H-xanthen-9-yl derivatives of bidentate heterocyclic nucleophiles by Fe(HSO4)3 as a catalyst

被引：0

作者：

Hossein Eshghi ^{[1
]}

Mehdi Bakavoli ^{[1
]}

Javad Abedini-Torghabeh ^{[1
]}

Mohammad Rahimizadeh ^{[1
]}

机构：

[1] Department of Chemistry,School of Sciences,Ferdowsi University of Mashhad,P.O.Box 91775-1436,Mashhad,Iran

来源：

Chinese Chemical Letters | 2012年 / 23卷 / 10期

关键词：

Xanthen; Ferric hydrogensulfate; Nucleophilic reagents; S_N1 type;

D O I：

暂无

中图分类号：

O643.32 [催化反应];

学科分类号：

081705 ;

摘要：

We have demonstrated the direct substitution of 9H-xanthen-9-ol with different nucleophilic reagents such as thiazoles, triazoles,tetrazoles,hydrazines and hydrazinecarboxamides in good to high yields.This reaction catalyzed by ferric hydrogensulfate as a heterogeneous acid catalyst in ethanol through SN1 type reaction of pyrylium with a nucleophilic reagent afforded the heterocycle- and aromatic-N-substituted xanthene derivatives as simple marked molecules in short reaction times.

引用

页码：1153 / 1156

页数：4

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