Mesoporous poly-melamine-formaldehyde stabilized palladium nanoparticle (Pd@mPMF) catalyzed mono and double carbonylation of aryl halides with amines

Abstract

A new mesoporous polymer stabilized Pd nano (mPMF–Pd0) has been synthesized and well characterized. The catalytic performance of this complex has been tested for mono and double carbonylation of aryl halides with amines.

In Situ Green Synthesis of Pd Nanoparticles on Tannic Acid‐Modified Magnetite Nanoparticles as a Green Reductant and Stabilizer Agent: Its Application as a Recyclable Nanocatalyst (Fe3O4@TA/Pd) for Reduction of 4‐Nitrophenol and Suzuki Reactions

“…That is why, in recent years, researchers have gained interest in organizing recoverable heterogeneous Pd catalysts . In this respect, various solid materials including modified silica,, polymers,, mesoporous materials, ionic liquids and natural supports, have been proposed as supports for heterogenization of palladium catalysts.…”

Melamine‐Based Microporous Network Polymer Supported Palladium Nanoparticles: A Stable and Efficient Catalyst for the Sonogashira Coupling Reaction in Water

“…reported the use of melamine–formaldehyde polymers as ligands for Pd‐catalyzed Suzuki–Miyaura coupling reactions,13a and Islam et al. reported a mesoporous polymelamine–formaldehyde stabilized palladium nanoparticle (Pd@mPMF) as a catalyst for the carbonylation of aryl halides with amines 13b. Park et al.…”

Mild and efficient Pd(PtBu3)2‐catalyzed aminocarbonylation of aryl halides to aryl amides with high selectivity

“…It is worth noting that only a few examples of mild aminocarbonylation have been reported . Generally, when the temperature is not higher than 90°C, aminocarbonylation reactions mainly proceed via a double carbonylation pathway . To our delight, under the given conditions (40–60°C), this catalyst system favored the mono‐carbonylation reaction and yielded the target amide with high selectivity.…”

“…Generally, a high temperature (≥100°C) favors mono‐carbonylation reaction (aminocarbonylation) and yields amide as the main product . At lower temperature (≤90°C), carbonylation reaction mainly proceeds via a double carbonylation pathway and yields α‐ketoamide as the main product . Therefore, challenges remain for developing highly chemoselective aminocarbonylation reactions under mild temperature conditions …”