Divergent Synthesis of Allenylsulfonamide and Enaminonesulfonamide via In(III)-Catalyzed Couplings of Propargylamine and N-Fluorobenzenesulfonimide
摘要:
An In(III)-catalyzed facile and controllable method for the synthesis of allenylsulfonamide and enaminonesulfonamide has been achieved by the reaction between propargylamine and N-fluorobenzenesulfonimide (NFSI) under mild conditions. The present protocol is also applicable to the synthesis of tetrasubstituted allenylsulfonamide from triphenyl propargylalcohol. Experimental results suggest that the reaction probably proceeds through the ionic pathway.
DOI:
10.1021/acs.joc.8b01882
作为产物:
描述:
吗啉 、 苯乙炔 、 邻甲氧基苯甲醛 在
copper terephthalate metal-organic framework enriched on microscale Cu(II)-based carboxymethylcellulose composite fibers (4.5 mol% of Cu ) 作用下,
以
甲苯 为溶剂,
以93 %的产率得到4-(1-(2-methoxyphenyl)-3-phenylprop-2-yn-1-yl)morpholine
参考文献:
名称:
Cu(BDC) 在微型 Cu 基羧甲基纤维素纤维上的原位生长:构建 A3 偶联反应高效催化剂的新策略
A practical and efficient method was developed for the synthesis of propargylamines in a one-pot procedure from aldehydes, amines, and alkynes by using CuI as catalyst and succinic acid as additive. By using this protocol, a wide range of propargylamines was obtained in high yields.
Synthesis and characterization of magnetic glycocyamine-modified chitosan as a biosupport for the copper immobilization and its catalytic activity investigation
作者:F. Rafiee、F. Rezaie Karder
DOI:10.1016/j.reactfunctpolym.2019.104434
日期:2020.1
coordination. The magnetization of modified chitosan was done using of Fe3O4 nanoparticles. In the presence of coordinated groups of glycocyamine containing amidino and carboxylate, copper ions were immobilized on this magneticbiopolymer. This new nanocomposite (Fe3O4@CSC@AG@Cu) was characterized by FT-IR, FE-SEM, EDX, XRD, VSM, DRS and ICP analysis. After which, its catalyticactivity was examined in the three
摘要Trichloro-1,3,5-triazine试剂用于壳聚糖功能化,并作为功能化壳聚糖和糖胺之间的桥梁,形成铜配位的生物配体。改性壳聚糖的磁化是使用Fe3O4纳米粒子完成的。在含有glyco基和羧酸根的糖胺的配位基团的存在下,铜离子被固定在该磁性生物聚合物上。通过FT-IR,FE-SEM,EDX,XRD,VSM,DRS和ICP分析对这种新型纳米复合材料(Fe3O4 @ CSC @ AG @ Cu)进行了表征。此后,在脂族和芳族醛,仲环胺和苯基乙炔的三个偶联反应中,对炔丙基胺衍生物的合成进行了催化活性研究。
One-pot three-component synthesis of propargylamines using an efficient and reusable copper bio-functionalized magnetic graphene oxide nanocomposite
作者:Fatemeh Rafiee、Parvaneh Khavari
DOI:10.1016/j.poly.2019.114309
日期:2020.2
In this work, magnetic graphene oxide was produced through chemical oxidation of the graphite powder, exfoliation under ultrasonic waves and then magnetization in the presence of ion salts. Magnetic graphene oxide was functionalized with cysteine and used as efficient support for the immobilization and suitable dispersing of copper ions. This nanocatalyst was characterized using FT-IR, TEM, EDX, XRD, VSM, XPS and ICP-OES analysis. Very low loading of prepared nanocomposite was showed high activity in the synthesis of propargylamine derivatives via A(3)-coupling reaction. It simply recovered from the reaction mixture by using an external magnetic field and reused without any pre-activation in next tests with acceptable yields. (C) 2019 Elsevier Ltd. All rights reserved.
Divergent Synthesis of Allenylsulfonamide and Enaminonesulfonamide via In(III)-Catalyzed Couplings of Propargylamine and <i>N</i>-Fluorobenzenesulfonimide
作者:Sadhanendu Samanta、Alakananda Hajra
DOI:10.1021/acs.joc.8b01882
日期:2018.11.2
An In(III)-catalyzed facile and controllable method for the synthesis of allenylsulfonamide and enaminonesulfonamide has been achieved by the reaction between propargylamine and N-fluorobenzenesulfonimide (NFSI) under mild conditions. The present protocol is also applicable to the synthesis of tetrasubstituted allenylsulfonamide from triphenyl propargylalcohol. Experimental results suggest that the reaction probably proceeds through the ionic pathway.