A novel 2‐D accordion like Al‐BPED MOF as reusable and selective catalyst for N‐alkylation of amines with dialkylcarbonates

Abstract

A novel 2-D flakes like Al-BPED ((N 1 ,N 2 -bis [pyridine-2-yl]methyl)ethane-1,-2-diamine) metal-organic framework (MOF) have been explored for its catalytic potential in the N-alkylation of amines with dialkyl carbonates. The Al-BPED MOF catalyst has been synthesized by hydrothermal route. The X-ray diffraction, Fourier Transform Infrared Spectroscope (FTIR), and High Resolution Transmission Electron Microscopy (HRTEM) images were used to analyze the morphology of the synthesized Al-BPED MOF samples. With the use of Al-BPED MOF, the primary and secondary aromatic amines were selectively and efficiently methylated with dimethyl carbonate. The effect of process conditions has been investigated toward N-methylation, N-ethylation, and N-benzylation of aromatic amines. Under the optimal conditions with 10 mol % of the MOF catalyst, a maximum aniline conversion of 88% and a selectivity >90% toward N-alkylation was achieved. The kinetic studies revealed the N-alkylation reaction in presence of Al-BPED MOF followed pseudo-first order rate kinetics.

Application of Nanomagnetic Metal–Organic Frameworks in the Green Synthesis of Nicotinonitriles via Cooperative Vinylogous Anomeric-Based Oxidation

“…Nowadays, a new class of porous materials has been developed by linking metal ions with organic compounds as ligands. This class of porous compounds grown in 3D space constitute metal–organic frameworks (MOFs). − By selecting the appropriate metal, ligand, and reaction conditions, the particle size, pore structure, and morphology can be designed and adjusted. , Metal–organic frameworks (MOFs) as multivariate materials have been widely used in drug delivery, biotechnology, magnetic resonance imaging (MRI), adsorption and desorption, gas separation, catalysis, and photocatalysis. − Despite many applications, nanomagnetic particles (Fe 3 O 4 ) are used as suitable cores in catalysts . The high stability and high surface-to-volume ratio will lead to an amazing integration between nanomagnetic materials and metal–organic frameworks (MOFs).…”

Zn(II) Three-Dimensional Metal-Organic Frameworks Based on 2,5-Diiodoterephthalate and N,N Linkers: Structures and Features of Sorption Behavior

“…There are numerous application areas which make MOFs especially attractive for further in-depth studies. Those include (but are not limited to) separation of diverse organic substrates [5], including industrially important ones (in particular, cyclohexane/benzene) [6][7][8][9], catalysis (including photocatalysis) [10][11][12][13][14][15], sensor systems [16][17][18][19][20][21][22][23][24][25], removal or important inorganic pollutants [26][27][28][29][30][31], etc. Most of these features are due to the ability of MOF to act as sorbents: those having 3D structure can absorb various substrates into the pores.…”