我们在此描述一种简单且无催化剂的方法,该方法是通过使用二芳基二硒化物和次磷酸(H 3 PO 2),以四氢呋喃为溶剂,通过四氟硼酸芳族重氮鎓盐与芳基硒醇的反应来合成二芳基硒化物。这是直接的亲核芳族取代(SNAr)反应,使用带有吸电子和供电子基团的二芳基二硒化物和烯二唑鎓盐以中等至良好的收率提供相应的二芳基硒化物。
Lewis acid InBr3-catalyzed arylation of diorgano diselenides and ditellurides with arylboronic acids
作者:Kai Ren、Min Wang、Lei Wang
DOI:10.1039/b914533h
日期:——
A novel Lewis acid InBr3-catalyzed direct cross-coupling reaction of arylboronic acids with diorgano diselenides and ditellurides without any additive has been developed. The reactions generated the corresponding unsymmetrical diorgano monoselenides and monotellurides in good to excellent yields. The method has advantages of broad substrate scope, simple operation, mild reaction conditions and high effectiveness. A possible reaction mechanism was proposed.
This report describes a method for Ni‐catalyzed intramolecular decarbonylative coupling, which enables the conversion of areneselenol esters to diaryl selenides. The inexpensive and readily available catalyst can be employed under mild reaction conditions for the construction of structurally diverse diaryl selenides, including heterocyclic and natural product derivatives.
Iron-Catalyzed Ligand-Free Carbon-Selenium (or Tellurium) Coupling of Arylboronic Acids with Diselenides and Ditellurides
作者:Min Wang、Kai Ren、Lei Wang
DOI:10.1002/adsc.200900095
日期:2009.7
Carbon‐selenium and carbon‐telluriumcross‐couplings of arylboronic acids with diselenides and ditellurides have been catalyzed by iron(0), iron(II) chloride or iron(III) chloride without any ligand and additive in the air. The method yields the corresponding unsymmetrical diorgano monoselenides and monotellurides in good to excellent yields, displays a broad substrate scope, and is simple, convenient
Syntheses of Thioethers and Selenide Ethers from Anilines
作者:Yi-Chen Shieh、Kai Du、R. Sidick Basha、Yung-Jing Xue、Bo-Hao Shih、Liang Li、Chin-Fa Lee
DOI:10.1021/acs.joc.9b00322
日期:2019.5.17
procedure was proposed for synthesizing thioethers and selenide ethers fromanilines under solvent-free and transition-metal-free conditions. Thioethers were formed when anilines reacted with thiols under blue light-emitting-diode (LED) irradiation at room temperature without a photocatalyst. When reactions were performed using anilines and diselenides, the corresponding selenide ethers were obtained with
A highly efficient and reusable MCM-41-immobilized bipyridine copper(<scp>i</scp>) catalyst for the C–Se coupling of organoboronic acids with diaryl diselenides
作者:Hong Zhao、Yuanyuan Jiang、Qiurong Chen、Mingzhong Cai
DOI:10.1039/c4nj01687d
日期:——
A highlyefficient MCM-41-immobilized bipyridine copper(I) complex [MCM-41-bpy-CuI] was prepared from 4,4′-bis[3-(triethoxysilyl)propylaminomethyl]-2,2′-bipyridine via immobilization on the mesoporous material MCM-41, followed by reaction with CuI. In the presence of 5 mol% MCM-41-bpy-CuI, the cross-coupling reaction of organoboronicacids with diaryl diselenides proceeded smoothly in DMSO/H2O (2/1)
A高效MCM-41固定联吡啶铜(我)络合物[MCM-41联吡啶翠]从4,4'-双[3-(三乙氧基硅基)丙基氨基] -2,2'-联吡啶制备通过固定上介孔材料MCM-41,然后与CuI反应。在5 mol%MCM-41-bpy-CuI的存在下,有机硼酸与二芳基二硒化物的交叉偶联反应在DMSO / H 2 O(2/1)中于110°C的空气中顺利进行,得到了多种二有机基硒化物,收率好至极好。可以通过简单过滤反应溶液来回收和再循环这种多相铜催化剂,并在不降低活性的情况下,至少进行了10次连续试验。