Title : ( Efficient synthesis of novel 9H-xanthen-9-yl derivatives of bidentate heterocyclic nucleophiles by Fe(HSO4)3 as a catalyst )
Authors: Hossein Eshghi , Mehdi Bakavoli , javad abedini torghabeh , Mohammad Rahimizadeh ,
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Abstract
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.
Keywords
Xanthen; Ferric hydrogensulfate; Nucleophilic reagents; SN1 type
@article{paperid:1030052,
author = {Eshghi, Hossein and Bakavoli, Mehdi and Abedini Torghabeh, Javad and Rahimizadeh, Mohammad},
title = {Efficient synthesis of novel 9H-xanthen-9-yl derivatives of bidentate heterocyclic nucleophiles by Fe(HSO4)3 as a catalyst},
journal = {Chinese Chemical Letters},
year = {2012},
volume = {23},
number = {10},
month = {October},
issn = {1001-8417},
pages = {1153--1156},
numpages = {3},
keywords = {Xanthen; Ferric hydrogensulfate; Nucleophilic reagents; SN1 type},
}
%0 Journal Article
%T Efficient synthesis of novel 9H-xanthen-9-yl derivatives of bidentate heterocyclic nucleophiles by Fe(HSO4)3 as a catalyst
%A Eshghi, Hossein
%A Bakavoli, Mehdi
%A Abedini Torghabeh, Javad
%A Rahimizadeh, Mohammad
%J Chinese Chemical Letters
%@ 1001-8417
%D 2012
