maleimides with secondary amines and NXS (X = Cl, Br, I) was developed, in which the N–X bonds generated in situ were used as difunctionalized reagents. The distinctive features of this multicomponent reaction include a simple green catalytic system, a spectral substrate range, and the late-stage modification of drug molecules. Most importantly, this umpolung radical cascade strategy exploits the in situ
The first example of copper-catalyzed four-component coupling reaction of aryl iodides, Se powder, secondary amines, and maleimides is developed. This reaction provides an efficient and concise route to access aminoarylselenated maleimides via double C–Se bonds and C–N bond formation. The appealing features of this transformation are the use of Se powder as a selenating reagent, a green catalytic system
the first example of copper-catalyzed oxidative thioamination of maleimides with secondary amines and Bunte salts with the achievement of C-N and C-S bonds in a single flask. The protocol showcases a prominently broad substrate scope and is also efficient for the late-stage modification of an array of pharmaceuticals. Preliminary mechanistic investigation indicates copper-catalyzed oxidative amination
Cu‐catalyzed vinylamination of
<i>S</i>
‐alkylisothiouronium salts with maleimide and alkylamines
作者:Xueying Zhou、Yaling Xu、Caihong Wang、Ge Wu
DOI:10.1002/aoc.6643
日期:2022.5
reported a copper-catalyzed vinylamination of S-alkylisothiouronium salts with maleimide and organic amines with the assistance of FeCl3, enabling the preparation of structurally diverse aminoalkylthiolated maleimides and applying them to late-stage modification of pharmaceuticals. Importantly, this strategy makes it possible to introduce the SCD3 functional group into the maleimide skeleton by using the
Asymmetric [3+2] annulation of allenes with maleimides catalyzed by dipeptide-derived phosphines: facile creation of functionalized bicyclic cyclopentenes containing two tertiary stereogenic centers
作者:Qianyi Zhao、Xiaoyu Han、Yin Wei、Min Shi、Yixin Lu
DOI:10.1039/c2cc16904e
日期:——
D-Threonine-L-tert-leucine-derived bifunctional phosphine, Cat. 11, catalyzedhighlyenantioselective [3+2] annulation of maleimides with allenes has been disclosed, allowing the synthesis of optically active functionalized bicyclic cyclopentenes containing two tertiary stereogenic centers in good to high yields along with good to high enantioselectivities.