Title : ( H5BW12O40 as a Green and Efficient Homogeneous but Recyclable Catalyst in the Synthesis of 4H-Pyrans via Multicomponent Reaction )
Authors: M. Heravi , Masoud Mirzaei Shahrabi , S. Y. Shirazi Beheshtiha , V. Zadsirjan , F. Mashayekh Ameli , Maryam Bazargan ,
Full TextAbstract
Keggin-type heteropolyacid, H5BW12O40 (BWA) with a higher negative charge and stronger Brønsted acidity comparing to Si and P derivatives was used as an efficient, green, and reusable catalyst in a three component reaction involving the cyclocondensation of various β-dicarbonyl compounds, differently substituted aromatic aldehydes and malononitrile in EtOH/H2O for the facile, clean, and high yielding synthesis of 4H-pyrans. All reactions were completed in short times and the products were obtained in good to excellent yields. The reaction medium could be recycled and reused several times without any loss of efficiency.
Keywords
, Keggin-type polyoxometalates, H5BW12O40, one-pot synthesis, Multicomponent reaction, homogeneous catalysis.
@article{paperid:1068788,
author = {M. Heravi and Mirzaei Shahrabi, Masoud and S. Y. Shirazi Beheshtiha and V. Zadsirjan and F. Mashayekh Ameli and Bazargan, Maryam},
title = {H5BW12O40 as a Green and Efficient Homogeneous but Recyclable Catalyst in the Synthesis of 4H-Pyrans via Multicomponent Reaction},
journal = {Applied Organometallic Chemistry},
year = {2018},
volume = {32},
number = {9},
month = {August},
issn = {0268-2605},
pages = {1--10},
numpages = {9},
keywords = {Keggin-type polyoxometalates; H5BW12O40; one-pot synthesis; Multicomponent reaction; homogeneous catalysis.},
}
%0 Journal Article
%T H5BW12O40 as a Green and Efficient Homogeneous but Recyclable Catalyst in the Synthesis of 4H-Pyrans via Multicomponent Reaction
%A M. Heravi
%A Mirzaei Shahrabi, Masoud
%A S. Y. Shirazi Beheshtiha
%A V. Zadsirjan
%A F. Mashayekh Ameli
%A Bazargan, Maryam
%J Applied Organometallic Chemistry
%@ 0268-2605
%D 2018
