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Scavenging Pd 2+ on Amine‐Functionalized SBA‐15: A Facile Synthesis of Leach‐Free Pd 0 Nanocatalyst for Base‐Free Chemoselective Transfer Hydrogenation of Olefins
Author(s) -
Bhuyan Diganta,
Saikia Lakshi
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701158
Subject(s) - catalysis , ethylbenzene , transfer hydrogenation , styrene , chemistry , selectivity , amine gas treating , surface modification , mesoporous material , formic acid , moiety , isophorone , organic chemistry , polymer chemistry , copolymer , polymer , ruthenium
The functionalization of mesoporous SBA‐15 with propylamine moiety made the material capable of scavenging Pd 2+ ions from acetone very efficiently and the monodispersed surface bound Pd 0 NPs were generated using NaBH 4 in water. The as‐synthesized SBA‐15‐ pr ‐NH 2 .Pd 0 nano hybrid material act as highly active, leach‐resistant and recyclable heterogeneous catalyst for base‐free chemoselective transfer hydrogenation of styrene to ethylbenzene using formic acid as non toxic, clean hydrogen source at 298 K. The catalyst exhibited excellent performance when some substituted styrene and other unsaturated compounds having carbon carbon double bonds are employed as substrates in the optimized reaction condition for styrene. The role of free propylamine is found to be very crucial for higher conversion and selectivity of the desired alkane products.