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<p>Facile synthesis of bis(indolyl)methanes over cordierite honeycomb coated with modified forms of zirconia under microwave irradiation condition</p><p> </p>

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Title Statement <p>Facile synthesis of bis(indolyl)methanes over cordierite honeycomb coated with modified forms of zirconia under microwave irradiation condition</p><p> </p>
 
Added Entry - Uncontrolled Name shamshuddin, md sz; Prof. of Chemistry, HMS Instt of Technol, Tumkur, Karnataka, India
Vasantha, V T; Chemistry Research Laboratory, HMS Institute of Technology, NH4, Kyathasandra, Tumakuru, Karnataka, India
D’Souza, Joyce Queeny; Department of Chemistry, St. Joseph’s College, Langford Road, Bengaluru, Karnataka, India
Shyamprasad, K ; Chemistry Research Laboratory, HMS Institute of Technology, NH4, Kyathasandra, Tumakuru, Karnataka, India
Pratap, S R; Chemistry Research Laboratory, HMS Institute of Technology, NH4, Kyathasandra, Tumakuru, Karnataka, India
Venkatesh, Venkatesh ; Chemistry Research Laboratory, HMS Institute of Technology, NH4, Kyathasandra, Tumakuru, Karnataka, India
VGST, Govt of Karnataka (GRD-375)
 
Uncontrolled Index Term catalysis; synthetic organic chemistry
Catalysts, Monoliths, Honeycomb monoliths, Microwave assisted synthesis, Bis(indolyl)methanes, Zirconia, Modified zirconia, Molybdenum, Tungsten, Sulphate
 
Summary, etc. <p style="text-align: justify;">Zirconia (ZrO<sub>2</sub>), Mo(VI)/ZrO<sub>2</sub>, W(VI)/ZrO<sub>2 </sub>and SO<sub>4</sub><sup>2-</sup>/ZrO<sub>2 </sub>have been coated on honeycomb monoliths and used as catalytic material in the microwave-assisted synthesis of various bis(indolyl)methane derivatives via condensation. These catalytic materials have been characterized for their properties such as surface acidity, crystallinity, morphology and elemental analysis by suitable techniques. A correlation between the acidity, crystallinity and the catalytic activity of these catalytic materials is observed. The effect of conventional heating and microwave heating on the synthesis of these derivatives has been studied. Microwave-assisted synthesis of bis(indolyl)methane derivatives over zirconia and its modified forms is found to be a fast and facile catalytic route. Up to 98% yield of bis(indolyl)methanes is obtained in a very short reaction time of 4 min under microwave irradiation, whereas it requires 20 min to obtain 98% yield under conventional heating. The honeycomb monoliths coated with modified forms of zirconia as catalytic materials are efficient, easily reactivable and reusable for at least six reaction cycles.</p><p> </p>
 
Publication, Distribution, Etc. Indian Journal of Chemistry -Section A (IJCA)
2020-12-10 12:47:21
 
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http://op.niscair.res.in/index.php/IJCA/article/view/17385
 
Data Source Entry Indian Journal of Chemistry -Section A (IJCA); ##issue.vol## 56, ##issue.no## 9 (2017): INDIAN JOURNAL OF CHEMISTRY - SECTION A
 
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Nonspecific Relationship Entry http://op.niscair.res.in/index.php/IJCA/article/download/17385/52108
http://op.niscair.res.in/index.php/IJCA/article/download/17385/52110
http://op.niscair.res.in/index.php/IJCA/article/download/17385/52111
http://op.niscair.res.in/index.php/IJCA/article/download/17385/52112
http://op.niscair.res.in/index.php/IJCA/article/download/17385/52113
http://op.niscair.res.in/index.php/IJCA/article/download/17385/52114
http://op.niscair.res.in/index.php/IJCA/article/download/17385/52115
http://op.niscair.res.in/index.php/IJCA/article/download/17385/52116
http://op.niscair.res.in/index.php/IJCA/article/download/17385/52118
http://op.niscair.res.in/index.php/IJCA/article/download/17385/52119
 
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