Synthesis, Structures, and Some Reactions of [(Thioacyl)thio]- and (Acylseleno)antimony and -bismuth Derivatives ((RCSS)xMR and (RCOSe)xMR with M = Sb, Bi andx = 1–3)
Despite the large atomic radii, the CS ⋅⋅⋅ Sb distances in (RCSS)2MR1 (M = As, Sb, Bi; R1 = aryl) and the CO ⋅⋅⋅ Sb distances in (RCOS)xMR (M = As, Sb, Bi; x = 2, 3) are comparable to or shorter than those of the corresponding arsenicderivatives (Tables 2 and 3). A molecular-orbital calculation performed on the model compounds (MeC(E)E1)3−xMMex (M = As, Sb, Bi; E = O, S; E1 = S, Se; x = 1, 2) at the
一系列[(硫代酰基)硫代]-和(酰基硒代)锑和[(硫代酰基)硫代]-和(酰基硒代)铋,即(RCSS)x MR和(RCOSe)x MR(M = Sb,Bi,R 通过用锑和卤化铋处理哌啶鎓或碳二硫代硫酸钠和-硒酸酯,可以中等至良好的产率合成1 =芳基,x = 1-3)。(4-MeC 6 H 4 CSS)2 Sb(4-MeC 6 H 4)(9b'),(4-MeOC 6 H 4 COSe)2 Sb(4-MeC 6 H 4)(12c')的晶体结构),(4-MeOC 6 H 4 COS)2 Bi(4-MeC 6 H 4)(15c')和(4-MeOC 6 H 4 CSS)2 BiPh(18c)以及(4-MeC 6 H 4确定了COS)2 SbPh(6b)和(4-MeC 6 H 4 COS)3 Sb(7b)(图1和2)。这些化合物具有扭曲的方形锥体结构,其中中心Sb-或Bi原子上的芳基或碳硫基(=酰基硫
Selenolesterase enzyme activity of carbonic anhydrases
作者:Andrea Angeli、Fabrizio Carta、Selene Donnini、Antonella Capperucci、Marta Ferraroni、Damiano Tanini、Claudiu T. Supuran
DOI:10.1039/d0cc00995d
日期:——
Carbonicanhydrases (CAs, E.C. 4.2.1.1) are metalloenzymes expressed on a variety of cell types. Their overexpression leads to serious pathologies, including cancer. The discovery of a series of selenolesters with high structural diversity as novel CA inhibitors is reported here. These compounds show remarkable in vitro inhibition against a panel of human CA isoforms such as hCA I, II, IX and XII.
Reductive Cleavage of the Se-Se Bond by the Sm/CrCl<sub>3</sub>System: A Novel One-Pot Method for the Synthesis of Selenoesters
作者:Yunkui Liu、Yongmin Zhang
DOI:10.1080/00397919908085925
日期:1999.11
Abstract Diary1 diselenides can react with acid chlorides or acid anhydrides in one-pot by the Sm/CrCl3 system to give selenoesters in moderate to good yields under mild and neutral conditions.
Synthesis of selenol esters from diorganyl diselenides and acyl chlorides under solvent-free conditions and microwave irradiation
作者:Marcelo Godoi、Eduardo W. Ricardo、Giancarlo V. Botteselle、Fabio Z. Galetto、Juliano B. Azeredo、Antonio L. Braga
DOI:10.1039/c1gc16243h
日期:——
Herein, we report an efficient, quick and eco-friendly new method for the synthesis of a variety of selenol esters. This novel solvent-free methodology gave good to excellent isolated yields of desired products after just 2 min undermicrowave irradiation. Furthermore, by using the same green approach, we were also able to synthesize selenocarbonates bearing interesting functionalities.