regioselective intermolecular 1,2‐aryl‐aminoalkylation of alkenes by photoredox/nickel dual catalysis is described here. This three‐component conjunctive cross‐coupling is highlighted by its first application of primary alkyl radicals, which were not compatible in previous reports. The readily prepared α‐silyl amines could be transferred to α‐amino radicals by photo‐induced single electron transfer step
Catalyst free, visible-light promoted photoaddition reactions between C 60 and N- trimethylsilylmethyl-substituted tertiary amines for synthesis of aminomethyl-1,2-dihydrofullerenes
作者:Suk Hyun Lim、Dae Won Cho、Patrick S. Mariano
DOI:10.1016/j.tet.2017.11.064
日期:2018.1
aminomethyl-substituted fullerenes has been developed. The process, involving catalyst free, visible-light irradiation of 10% EtOH-toluene solutions containing fullerene C60 and N-trimethylsilylmethyl-substituted amines by using a 20 W compact fluorescent lamp, leads to formation of aminomethyl-substituted fullereneadducts in a highly efficient manner. The photoaddition reaction takes place via a pathway initiated
Substituent Effects on the Benzyl Groups in Sommelet-Hauser Rearrangement.
作者:Tetsuya TANAKA、Naohiro SHIRAI、Yoshiro SATO
DOI:10.1248/cpb.40.518
日期:——
The effects of substituents (MeO, Me, H, Br, CN, NO2) of the benzyl groups in the Sommelet-Hauser rearrangement of N, N-bis(substituted benzyl)-N-methyl(trimethylsilyl)methylammonium halides with cesium fluoride in N, N-dimethylformamide were examined.
Remote and Proximal Hydroaminoalkylation of Alkenes Enabled by Photoredox/Nickel Dual Catalysis
作者:Songlin Zheng、Wenlong Wang、Weiming Yuan
DOI:10.1021/jacs.2c08039
日期:2022.10.5
hydroaminoalkylation of activated alkenes that provides the β-selective products. The chain-walking of a Ni–H intermediate toward a carbonyl allows for the hydroaminoalkylation of unactivated alkenes at remote sp3 C–H sites. This method tolerates a broad substrate scope of both amines and alkenes as well as providing a streamlined synthesis of value-added β-amino acid derivatives from readily available