Palladium-Catalyzed Carbonylative Synthesis of Aryl Selenoesters Using Formic Acid as an <i>Ex Situ</i> CO Source
作者:Danilo Yano de Albuquerque、Wystan K. O. Teixeira、Manoela do Sacramento、Diego Alves、Claudio Santi、Ricardo S. Schwab
DOI:10.1021/acs.joc.1c02608
日期:2022.1.7
A new catalytic protocol for the synthesis of selenoesters from aryl iodides and diaryl diselenides has been developed, where formic acid was employed as an efficient, low-cost, and safe substitute for toxic and gaseous CO. This protocol presents a high functional group tolerance, providing access to a large family of selenoesters in high yields (up to 97%) while operating under mild reaction conditions
已经开发了一种用于从芳基碘化物和二芳基二硒化物合成硒代酯的新催化方案,其中甲酸被用作有毒和气态 CO 的有效、低成本和安全的替代品。该协议具有高官能团耐受性,在温和的反应条件下以高产率(高达 97%)获得一大类硒代酯,避免使用难以操作、易氧化且气味难闻的硒醇。此外,通过首次使用二有机基二硫化物作为前体,该方法可以有效地扩展到具有中等至优异产率的硫酯的合成。
Iron(III)-catalyzed synthesis of selenoesters from α-amino carbonyl derivatives at room temperature
作者:Rana Chatterjee、Anindita Mukherjee、Sougata Santra、Grigory V. Zyryanov、Adinath Majee
DOI:10.1016/j.tet.2019.130624
日期:2019.10
An Fe(III)-catalyzed efficient method has been developed for the synthesis of selenoester derivatives in high yields through the coupling of α-amino carbonyl/glycine derivatives and diselenides under ambient air. A library of benzoselenoate derivatives having a variety of substituents has been synthesized. A plausible reaction pathway has been predicted. Experimental results suggest that the reaction
Syntheses of thiol and selenol esters by oxidative coupling reaction of aldehydes with RYYR (Y = S, Se) under metal-free conditions
作者:Chunhuan He、Xuewei Qian、Peipei Sun
DOI:10.1039/c4ob01159g
日期:——
Thiol and selenolesters were synthesized by a direct oxidative coupling reaction of aldehydes with disulfides or diselenides in ethyl acetate under metal-free conditions. Among the oxidants examined, tert-butyl peroxide (TBP) was shown to give the best results. For the substrates with both electron-donating and electron-withdrawing substituents, the reaction proceeded smoothly and gave moderate to
Synthesis of selenol esters via the reaction of acyl chlorides with diselenides in the presence of Zn dust catalyzed by CoCl2·6H2O
作者:Angélica J. de Oliveira、Sandynara A. de Oliveira、Leonardo G. Vasconcelos、Evandro L. Dall'Oglio、Lucas C.C. Vieira、André L. Stein
DOI:10.1016/j.tetlet.2021.153317
日期:2021.9
A practical and efficient approach for the synthesis of selenol and thiol esters is described via the reaction of acyl chlorides with diselenides or disulfides in the presence of Zn dust catalyzed by inexpensive CoCl2·6H2O This protocol tolerates a wide range of substrates, including aromatic and aliphatic acyl chlorides, with a variety of sensitive functional groups to afford the respective products
Iron-Catalyzed Synthesis of Selenoesters from Diselenides and Acyl Chlorides or Acid Anhydrides in the Presence of Magnesium Dust
作者:Lei Wang、Kai Ren、Min Wang、Ping Liu
DOI:10.1055/s-0029-1219229
日期:2010.4
for the iron-catalyzed preparation of selenoesters by the reaction of diselenides with acylchlorides or acid anhydrides has been developed. In the presence of magnesium dust, iron catalyzes the cleavage of the Se-Se bonds of the diselenides; the subsequent smooth reaction with acylchlorides or acid anhydrides generates the corresponding selenoesters in good yields. The reaction could be carried out