One-Pot Reductive Mono-<i>N</i>-alkylation of Aniline and Nitroarene Derivatives Using Aldehydes
作者:Eunyoung Byun、Bomi Hong、Kathlia A. De Castro、Minkyung Lim、Hakjune Rhee
DOI:10.1021/jo701503q
日期:2007.12.1
One-potreductivemono-N-alkylation of aniline and nitroarene derivatives using various aldehydes by Pd/C catalyst in aqueous 2-propanol solvent with ammonium formate as in situ hydrogen donor is illustrated. The reaction proceeded smoothly and selectively with excellent yield at room temperature. Our protocol presents a facile, economical, and environmentally benign alternative for reductive amination
A Unified and Practical Method for Carbon–Heteroatom Cross‐Coupling using Nickel/Photo Dual Catalysis
作者:Randolph A. Escobar、Jeffrey W. Johannes
DOI:10.1002/chem.202000052
日期:2020.4.21
While carbon-heteroatom cross-couplingreactions have been extensively studied, many methods are specific and limited to a particular set of substrates or functional groups. Reported here is a general method that allows for C-O, C-N and C-Scross-couplingreactions under one general set of conditions. We propose that an energy transfer pathway, in which an iridium photosensitizer produces an excited
Intramolecular Nucleophilic Aromatic Substitution Reaction of 2-Carboxamido-3-arylquinazolin-4-ones and its Application to the Synthesis of Secondary Aryl Amines
A novel intramolecular nucleophilic aromatic substitution reaction of 2-carboxamido-3-arylquinazolin-4-one derivatives induced by base treatment and its application to the expeditious synthesis of secondary aryl amines, including diaryl amines, are described.
the coupling of electron-rich and electron-poor aryl halides with both primary and secondary alkyl amines. In this study, it is reported that a Ni(II)-bipyridine complex catalyzes efficient C–N coupling of aryl chlorides and bromides with various primary and secondary alkyl amines under direct excitation with light. Intramolecular C–N coupling is also demonstrated. The feasibility and applicability of
A simple and efficient catalyst-free chemoselective reductive amination of primary amines and aldehydes to synthesis of tertiary and secondaryamines with borane complex was developed. Primary amines are converted into tertiary and secondaryamines in one pot reaction under mild condition with good functional group compatibility and It does not require any catalyst to participate in this reaction.