Sustainable strategies of C–N bond formation via Ullmann coupling employing earth abundant copper catalyst

G Yashwantrao, S Saha - Tetrahedron, 2021 - Elsevier
N-arylation reaction has become one of the key strategies in organic synthesis to access
several molecules of biological, agrochemical, and medicinal importance. The century-old …

Copper immobilized at a covalent organic framework: an efficient and recyclable heterogeneous catalyst for the Chan–Lam coupling reaction of aryl boronic acids and …

Y Han, M Zhang, YQ Zhang, ZH Zhang - Green Chemistry, 2018 - pubs.rsc.org
A polyimide covalent organic framework (PI-COF) with high thermal and chemical stabilities
has been readily prepared from commercially available and inexpensive reagents and was …

Chan–Evans–Lam couplings with copper iminoarylsulfonate complexes: scope and mechanism

V Hardouin Duparc, GL Bano, F Schaper - ACS Catalysis, 2018 - ACS Publications
Copper (II) pyridyliminoarylsulfonate complexes with chloride or triflate counteranions were
employed in Chan–Evans–Lam (CEL) couplings of N-nucleophiles and arylboronic acids …

Advances in carbon–element bond construction under Chan–Lam cross-coupling conditions: a second decade

A Vijayan, DN Rao, KV Radhakrishnan, PYS Lam… - …, 2021 - thieme-connect.com
Copper-mediated carbon–heteroatom bond-forming reactions involving a wide range of
substrates have been in the spotlight for many organic chemists. This review highlights …

Metal‐Catalyzed Cross‐Coupling Reactions of Aminopyridines

MJ Dias Pires, DL Poeira… - European Journal of …, 2015 - Wiley Online Library
The aminopyridines are key building blocks in the synthesis of bioactive heterocyclic
compounds such as azaindoles and imidazopyridines. The role of metal‐catalyzed methods …

Synthesis of aminoisoquinolines via Rh-catalyzed [4+ 2] annulation of benzamidamides with vinylene carbonate

X Huang, Y Xu, J Li, R Lai, Y Luo, Q Wang… - Chinese Chemical …, 2021 - Elsevier
A new strategy is developed for the synthesis of 1-aminoisoquinoline derivatives. This Rh
(III)-catalyzed [4+ 2] annulation reaction employs benzamidines as efficient directing groups …

Copper-catalyzed inter-and intramolecular C–N bond formation: synthesis of benzimidazole-fused heterocycles

S Rasheed, DN Rao, P Das - The Journal of Organic Chemistry, 2015 - ACS Publications
A Cu (II)-catalyzed, inter/intramolecular C–N bond formation for the synthesis of various
benzimidazole-fused heterocycles in a concise manner has been reported. The robustness …

Triazine‐based mesoporous covalent imine polymers as solid supports for copper‐mediated Chan–Lam cross‐coupling N‐arylation reactions

P Puthiaraj, K Pitchumani - Chemistry–A European Journal, 2014 - Wiley Online Library
The synthesis of a novel mesoporous covalent imine polymeric (MCIPs) material, involving
simple Schiff‐base chemistry, is reported. This highly functionalised nitrogen‐rich material …

Copper (ii)-catalyzed Chan–Lam cross-coupling: chemoselective N-arylation of aminophenols

AS Reddy, KR Reddy, DN Rao, CK Jaladanki… - Organic & …, 2017 - pubs.rsc.org
Copper (II)-catalyzed boronic acid promoted chemoselective N-arylation of unprotected
aminophenols has been developed. Selective N-arylation of 3-aminophenol is achieved …

Copper-catalyzed sequential N-arylation of C-amino-NH-azoles

DN Rao, S Rasheed, RA Vishwakarma… - Chemical …, 2014 - pubs.rsc.org
Copper (II)-catalyzed boronic acid promoted C–N bond cross-coupling reactions have been
successfully developed for sequential N-arylation of C-amino-NH-azoles. These general …