硼存在下的6-羟基-5- [2-(萘-1-基)乙基] -3a,5,6,6a-四氢-4 H-吡咯并[3,4- d ]异恶唑-4-酮将三氟化物-乙醚复合物环化为两种非对映异构体混合物的苯并[ f ]异恶唑并[5',4':3,4]-吡咯并[2,1- a ]异喹啉衍生物。对6-羟基-5-(萘-1-基甲基)-3a,5,6,6a-四氢-4 H-吡咯并[3,4- d ]异恶唑-4-酮的类似环化反应得到苯并[de] isoxazolo [ 5′,4′:3,4]吡咯并[2,1- a ]异喹啉作为单一非对映异构体。6-羟基-5- [2-(1(吲哚-3-基)乙基] -6,6a-二氢-3a H-吡咯并[3,4- d ]异恶唑-4(5 HSn(NTf 2)4催化的1)-酮以中等产率提供了异恶唑并[5',4':1,2]吲哚并[8,7-b]吲哚-4(12 H)-。将6-羟基-5- [2-(噻吩-2-基)乙基] -6,6a-二氢-3aH-吡咯并[3
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
An unexpected formation of the novel 7-oxa-2-azabicyclo[2.2.1]hept-5-ene skeleton during the reaction of furfurylamine with maleimides and their bioprospection using a zebrafish embryo model
作者:Carlos E. Puerto Galvis、Vladimir V. Kouznetsov
DOI:10.1039/c2ob26699g
日期:——
An unexpected intramolecular cyclization during the reaction of furfurylamine with maleimides is reported as a novel strategy for the efficient green synthesis of the 7-oxa-2-azabicyclo[2.2.1]hept-5-ene skeleton.
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