URJC‐1‐MOF as New Heterogeneous Recyclable Catalyst for C‐Heteroatom Coupling Reactions

Abstract

workers from @urjc describe URJC-1-MOF as a new heterogeneous recyclable catalyst for cheteroatom coupling reactions The capacity of copper-based URJC-1-MOF as a MOF catalyst in cross-coupling reactions has been evaluated, focusing on the Chan-Lam-Evans arylation-type reactions on amines and alcohols without extra additives or ligands. The extraordinary chemical and structural stability of URJC-1-MOF and its good specific surface, make this material a promising alternative to homogeneous Cu (II) catalysts for cross-coupling reactions. URJC-1-MOF showed a remarkable catalytic activity for crosscoupling CÀ N and CÀ O reactions, higher than other heterogeneous and homogeneous copper-based catalyst, such as CuO, HKUST-1, CuÀ MOF-74, Cu(OAc) 2 and CuSO 4 ·5H 2 O. Moreover, its easy recovery by simple filtration and reusability in successive runs without any loss of activity and stability, demonstrates the potential of URJC-1-MOF as an alternative catalyst for this kind of reactions in different chemical media of industrial interest. Results and DiscussionURJC-1-MOF catalyst used in this work has a crystalline structure formed by Cu(II) linked to 1H-imidazol-4,5-tetrazole ligand, displaying a BET surface area of 408 m 2 /g and a pore volume of 0.24 cm 3 /g. This material provides open metal sites as active centers (see SI-1) and a remarkable thermal and chemical [a] Dr.

One‐Pot Transfer Hydrogenation Reductive Amination of Aldehydes and Ketones by Iridium Complexes “on Water”

“…There are many means to achieve this transformation. For example, the reduction of imines, [ 2 ] the reductive amination of aldehydes, [ 3 ] the borrowing hydrogenation of alcohols and amines, [ 4 ] the reduction of amides, [ 5 ] the coupling of halogenated hydrocarbons [ 6 ] and boric acids [ 7 ] to amines, and the addition of amines and alkynes, [ 8 ] etc.…”

Catalytically active atomically thin cuprate with periodic Cu single sites

“…S5 ). A TON > 450 can be readily achieved, higher than that of all the existing catalysts reported for this reaction [ 38 , 39 , 42–48 ]. A close examination reveals that the morphology and structure of 2D-CuSS nanosheets are retained ( Figs S6 and S7 ) with only a trace amount of Cu, ∼0.5 ppm (<0.01% of the total Cu in the catalyst), present in the solution after each cycle (determined by ICP analysis).…”

A series of novel Cu-based MOFs: syntheses, structural diversity, catalytic properties and mimic peroxidase activity for colorimetric detection of H2O2

“…19 Guillermo et al prepared a URJC-1-MOF as a new heterogeneous recyclable catalyst for heteroatom coupling reactions, which exhibited a remarkable catalytic activity for crosscoupling C–N and C–O reactions, higher than other heterogeneous and homogeneous copper-based catalysts. 20…”