Di(2-picolyl)amines as Modular and Robust Ligands for Nickel-Catalyzed C(sp<sup>2</sup>)–C(sp<sup>3</sup>) Cross-Electrophile Coupling
作者:Alexander J. Rago、Aristidis Vasilopoulos、Amanda W. Dombrowski、Ying Wang
DOI:10.1021/acs.orglett.2c03346
日期:2022.11.25
reaction, because noncommercial analogues usually entail challenging syntheses. In this work, di(2-picolyl)amines (DPAs) are explored as an alternative modular ligand class for the nickel-catalyzed aryl–alkyl cross-electrophile coupling. Novel DPA ligands were synthesized directly from inexpensive amine and pyridine building blocks in a single step. This facile synthetic route enabled the parallel synthesis
Mechanochemically activated magnesium(0) metal as a highly active mediator driving direct C-4–H alkylation of pyridines with alkyl halides has been developed. Excellent regioselectivity and substrate scope, including those containing reducible functionalities, free amines, and alcohols, as well as biologically relevant molecules were achieved to access 4-alkylpyridine products. Preliminary mechanistic
The present technology is directed to compounds, compositions, and methods related to inhibition of ASK1. In particular, the present compounds (e.g., compounds of Formula I as defined herein) and compositions may be used to treat ASK1-mediated disorders and conditions, including, e.g., fibrotic diseases and acute and chronic liver diseases, among others.