Synthesis and properties of alkynethiolate gold(i) complexes
作者:Nora Lardiés、Inocencio Romeo、Elena Cerrada、Mariano Laguna、Peter J. Skabara
DOI:10.1039/b708966j
日期:——
A series of alkynethiolate gold(I) derivatives have been synthesised by the cleavage of 4-monosubstituted 1,2,3-thiadiazoles in the presence of strong bases. The syntheses of the 1,2,3-thiadiazoles with p-cyanophenyl, p-tolyl, 2-thienyl, 3-thienyl and 9,9-dimethylfluoren-2-yl fragments are also described. All the complexes have been characterised by spectroscopic techniques and the complexes [Au(p-CH3–C6H4–CC–S)PPh3], [Au(3-C4H3S–CC–S)PPh3] and PPN[Au(p-CH3–C6H4–CC–S)(C6F5)] by X-ray analysis. The electrochemically polymerizable mononuclear bis(alkynethiolate) gold(I) complex PPN[Au(3-C4H3S–CC–S)2] is also described, including its electropolymerization and electrochemical properties.
Simple and commercially available starting materials, a broad substrate scope, and excellent functional group tolerability make this strategy practical for applications. Furthermore, 1,2,3-thiadiazole synthesis was realized by using potassium thiocyanate as an odorless sulfur source.
“Nanorust”-catalyzed Benign Oxidation of Amines for Selective Synthesis of Nitriles
作者:Rajenahally V. Jagadeesh、Henrik Junge、Matthias Beller
DOI:10.1002/cssc.201402613
日期:2015.1
Organic nitriles constitute key precursors and central intermediates in organicsynthesis. In addition, nitriles represent a versatile motif found in numerous medicinally and biologically important compounds. Generally, these nitriles are synthesized by traditional cyanation procedures using toxic cyanides. Herein, we report the selective and environmentally benign oxidative conversion of primary amines
有机腈构成有机合成中的关键前体和中心中间体。另外,腈是在许多医学和生物学上重要的化合物中发现的通用基序。通常,这些腈是使用有毒氰化物通过传统的氰化步骤合成的。本文中,我们报道了使用可重复使用的基于“纳米锈”(纳米级Fe 2 O 3)的分子氧催化剂,伯胺选择性和环境无害的氧化转化,用于合成结构多样的芳香族,脂肪族和杂环腈。