Celite‐Polyaniline supported palladium catalyst for chemoselective hydrogenation reactions. (17th February 2019)

• Record Type: Journal Article
• Authors: Patel, Heta A.; Rawat, Maitreyee; Patel, Arun L.; Bedekar, Ashutosh V.
• Is Part Of: Applied organometallic chemistry. Volume 33:Number 4(2019)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2019-02-17
• Subjects: celitePANI support -- chemoselective transformations -- heterogeneous catalysis -- hydrogenation -- palladium catalysis; Organometallic chemistry -- Periodicals; Organometallic compounds -- Periodicals; 547.05
• DOI: 10.1002/aoc.4767
• Languages: English
• ISSNs: 0268-2605

Abstract

Abstract : Polyaniline coated on particles of celite is used as support to load palladium catalyst. This heterogenized CelitePANIPd 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. Abstract : The heterogenized CelitePANIPd 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.