[EN] CYANOPYRROLIDINE DERIVATIVES WITH ACTIVITY AS INHIBITORS OF USP30 [FR] DÉRIVÉS DE CYANOPYRROLIDINE AYANT UNE ACTIVITÉ EN TANT QU'INHIBITEURS DE L'USP 30
Metal-Free Coupling of Saturated Heterocyclic Sulfonylhydrazones with Boronic Acids
摘要:
The coupling of aromatic moieties with saturated heterocyclic partners is currently an area of significant interest for the pharmaceutical industry. Herein, we present a procedure for the metal-free coupling of 4-, 5-, and 6-membered saturated heterocyclic p-methoxyphenyl (PMP) sulfonylhydrazones with aryl and heteroaromatic boronic acids. This procedure enables a simple, two-step synthesis of a range of functionalized sp(2)-sp(3) linked bicyclic building blocks, including oxetanes, piperidines, and azetidines, from their parent ketones.
The disclosure generally relates to compounds of formula I, including their salts, as well as compositions and methods of using the compounds. The compounds are ligands of the NR2B receptor and may be useful for the treatment of various disorders of the central nervous system.
Merging Halogen-Atom Transfer (XAT) and Copper Catalysis for the Modular Suzuki–Miyaura-Type Cross-Coupling of Alkyl Iodides and Organoborons
作者:Zhenhua Zhang、Bartosz Górski、Daniele Leonori
DOI:10.1021/jacs.1c12649
日期:2022.2.2
Suzuki–Miyaura-type cross-couplings between alkyl iodides and aryl organoborons. This process requires a copper catalyst but, in contrast with previous approaches based on palladium and nickel systems, does not utilizes the metal for the activation of the alkylelectrophile. Instead, this strategy exploits the halogen-atom-transfer ability of α-aminoalkyl radicals to convert secondary alkyl iodides into the
An Improved System for the Aqueous Lipshutz-Negishi Cross-Coupling of Alkyl Halides with Aryl Electrophiles
作者:Vasudev R. Bhonde、Brian T. O'Neill、Stephen L. Buchwald
DOI:10.1002/anie.201509341
日期:2016.1.26
development of a palladacyclic precatalyst supported by a new biaryl(dialkyl)phosphine ligand (VPhos) in combination with octanoic acid/sodium octanoate as a simple and effective surfactant system provided an improved catalyst system for the rapid construction of a broad spectrum of alkylated scaffolds from alkyl zinc reagents generated in situ.
Reductive Cross-Coupling of Nonaromatic, Heterocyclic Bromides with Aryl and Heteroaryl Bromides
作者:Gary A. Molander、Kaitlin M. Traister、Brian T. O’Neill
DOI:10.1021/jo500905m
日期:2014.6.20
Reductive cross-coupling allows the directC–Cbond formation between two organic halideswithout the need for preformation of an organometallic reagent. A method has been developed for the reductive cross-coupling of nonaromatic, heterocyclic bromides with aryl or heteroaryl bromides. The developed conditions use an air-stable Ni(II) source in the presence of a diamine ligand and a metal reductant
Nickel-Catalyzed Cross-Electrophile Reductive Couplings of Neopentyl Bromides with Aryl Bromides
作者:Soumik Biswas、Bo Qu、Jean-Nicolas Desrosiers、Younggi Choi、Nizar Haddad、Nathan K. Yee、Jinghua J. Song、Chris H. Senanayake
DOI:10.1021/acs.joc.0c00549
日期:2020.6.19
ligand for nickel-catalyzed cross-electrophile couplings by screening a diverse set of pharmaceutical compound library. A strategic screening approach led to the discovery of this novel ligand, which was successfully applied in the preparation of various alkylated arene products with good to high yields. Furthermore, the properties of this ligand allowed expanding the scope of reductive couplings to challenging