Title : ( Efficient Solvent Free Synthesis of 12-Aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones and 3H-Spiro[isobenzofuran-1,9'-xanthen]-3-one Derivatives Using Cobalt Hydrogensulfate as a Green, Heterogeneous and Reusable Catalyst )
Authors: Hossein Eshghi , melika eftekhar , Mohammad Rahimizadeh , Maede Hasanpour Mansour , Mehdi Bakavoli ,
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Abstract
Cobalt hydrogensulfate is an efficient catalyst for the condensation of β-naphthol, aromatic aldehydes and 5,5-dimethyl-1,3-cyclohexanedione at 120 °C to afford 9,9-dimethyl-12-phenyl-8,10,11,12-tetrahydro-9-H-benzo[a]xanthen-11-one derivatives in high yields. Also, polycondensation reactions of phenols with phthalic anhydride were carried out in the presence of cobalt hydrogensulphate under solvent -free conditions. Simple and convenient procedure, high conversion, reusability of catalyst, easy purification and short reaction time are the advantageous features of this method.
Keywords
, Cobalt hydrogensulfate, Heterogeneous and reusable catalyst, Xanthene derivatives, Solvent free
@article{paperid:1055628,
author = {Eshghi, Hossein and Eftekhar, Melika and Rahimizadeh, Mohammad and Hasanpour Mansour, Maede and Bakavoli, Mehdi},
title = {Efficient Solvent Free Synthesis of 12-Aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones and 3H-Spiro[isobenzofuran-1,9'-xanthen]-3-one Derivatives Using Cobalt Hydrogensulfate as a Green, Heterogeneous and Reusable Catalyst},
journal = {Organic Chemistry Research},
year = {2016},
volume = {2},
number = {1},
month = {March},
issn = {2383-242X},
pages = {20--27},
numpages = {7},
keywords = {Cobalt hydrogensulfate; Heterogeneous and reusable catalyst; Xanthene derivatives; Solvent free},
}
%0 Journal Article
%T Efficient Solvent Free Synthesis of 12-Aryl-8,9,10,12-tetrahydrobenzo[a]-xanthen-11-ones and 3H-Spiro[isobenzofuran-1,9'-xanthen]-3-one Derivatives Using Cobalt Hydrogensulfate as a Green, Heterogeneous and Reusable Catalyst
%A Eshghi, Hossein
%A Eftekhar, Melika
%A Rahimizadeh, Mohammad
%A Hasanpour Mansour, Maede
%A Bakavoli, Mehdi
%J Organic Chemistry Research
%@ 2383-242X
%D 2016
