Celite‐Polyaniline supported palladium catalyst for chemoselective hydrogenation reactions

Polyaniline coated on particles of celite is used as support to load palladium catalyst. This heterogenized Celite•PANI•Pd system, is used as an efficient catalyst for chemoselective hydrogenation reactions. The catalyst is characterized by usual spectral, analytical techniques and studied for hydro...

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Bibliographic Details
Published in:Applied organometallic chemistry 2019-04, Vol.33 (4), p.n/a
Main Authors: Patel, Heta A., Rawat, Maitreyee, Patel, Arun L., Bedekar, Ashutosh V.
Format: Article
Language:English
Subjects:
Amines
Carbon
Catalysis
Catalysts
celite•PANI support
Chemistry
chemoselective transformations
Coumarin
Esters
Functional groups
heterogeneous catalysis
Hydrogenation
Palladium
palladium catalysis
Polyanilines
Selectivity
Tricalcium aluminate
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Summary:Polyaniline coated on particles of celite is used as support to load palladium catalyst. This heterogenized Celite•PANI•Pd system, is used as an efficient catalyst for chemoselective hydrogenation reactions. The catalyst is characterized by usual spectral, analytical techniques and studied for hydrogenation reactions at ambient conditions. The mild reaction conditions allow the control over the reactions and excellent selectivity is achieved in number of conversions. Hydrogenation of a carbon–carbon double bond was favored over other polar π‐bond systems, while labile functional groups such as benzyl ether, benzyl esters, cyano, nitro and halogen remained unaffected. Primary amines were converted to N,N‐dimethyl amines with formaldehyde, the double bond of coumarin was selectively hydrogenated without opening of the lactone functionality. The heterogenized Celite•PANI•Pd system is used as efficient catalyst for chemoselective hydrogenation reactions. A number of organic transformations have been carried out at mild conditions to demonstrate the selectivity.
ISSN:0268-2605
1099-0739
DOI:10.1002/aoc.4767