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
Reaction of (dialkylaminomethyl)trimethylsilanes with benzyne
作者:Yoshiro Sato、Toyohiko Aoyama、Hideaki Shirai
DOI:10.1016/s0022-328x(00)80716-0
日期:1974.12
Reactions of (dialkylaminomethyl)trimethylsilanes [dimethylamino-, diethylamino-, pyrrolidino- and morpholino-] with benzyne in THF gave two types of aniline derivatives: N-alkyl-N-(1-trimethylsilylalkyl)anilines and N-alkyl-N-trimethylsilylmethylanilines. From (piperidinomethyl)trimethylsilane, however, unexpected 1-(α-trimethylsilylbenzyl)piperidine was obtained together with N-(4-pentenyl)-N-tr
high‐yielding addition reaction (19 examples, 66–99 % yield) with various N‐(trimethylsilyl)methyl‐substituted amines upon irradiation with visiblelight and catalysis by a metal complex. If the alkylidene substituent is non‐symmetric and if the reaction is performed in the presence of a chiral hydrogen‐bonding template, products are obtained with significant enantioselectivity (58–72 % ee) as a mixture
Visible-light photoredox-promoted desilylative allylation of α-silylamines: An efficient route to synthesis of homoallylic amines
作者:Lulu Fan、Fukun Cheng、Tingting Zhang、Guoxing Liu、Jinwei Yuan、Pu Mao
DOI:10.1016/j.tetlet.2021.153357
日期:2021.9
desilylative allylation of α-silylamines with allylic sulfones is described. A variety of α-silylamines derived from anilines, cyclic and acyclic alkyl amines reacted with a serious of mono or disubstituted allylic sulfones well to provide homollylic amines in good to highyields under very mild reaction conditions.