25373-49-3Relevant articles and documents
Design of an Electron-Withdrawing Benzonitrile Ligand for Ni-Catalyzed Cross-Coupling Involving Tertiary Nucleophiles
Edjoc, Racquel K.,Mills, L. Reginald,Rousseaux, Sophie A. L.
supporting information, p. 10422 - 10428 (2021/07/26)
The design of new ligands for cross-coupling is essential for developing new catalytic reactions that access valuable products such as pharmaceuticals. In this report, we exploit the reactivity of nitrile-containing additives in Ni catalysis to design a benzonitrile-containing ligand for cross-coupling involving tertiary nucleophiles. Kinetic and Hammett studies are used to elucidate the role of the optimized ligand, which demonstrate that the benzonitrile moiety acts as an electron-acceptor to promote reductive elimination over β-hydride elimination and stabilize low-valent Ni. With these conditions, a protocol for decyanation-metalation and Ni-catalyzed arylation is conducted, enabling access to quaternary α-arylnitriles from disubstituted malononitriles.
Magnetically retrievable lepidocrocite supported copper oxide nanocatalyst (Fe-CuO) for N-arylation of imidazole
Sivakami,Babu, S. Ganesh,Dhanuskodi,Karvembu
, p. 8571 - 8578 (2015/03/03)
A simple and efficient lepidocrocite-supported copper oxide catalyst (Fe-CuO) has been successfully prepared by a simple precipitation method in aqueous medium from readily available inexpensive starting materials and was used as a heterogeneous nanocatal
Mild transition-metal-free amination of fluoroarenes catalyzed by fluoride ions
Dehe, Daniel,Munstein, Isabel,Reis, Andreas,Thiel, Werner R.
experimental part, p. 1151 - 1154 (2011/05/02)
Trimethylsilyl-protected heterocycles undergo N-C bond formation with a variety of electron-deficient fluoroarenes catalyzed by fluoride ions. This reaction avoids stoichiometric amounts of base and thus makes N-arylheterocycles accessible in a very mild and transition-metal-free way.
