高价值的芳烃磺酰氟的有限供应严重阻碍了它们在许多研究领域的进一步应用,包括药物化学和化学生物学,有机合成,聚合物制备等。我们在此报告了一种温和而有效的各种铜氮杂唑鎓盐的无铜Sandmeyer型氟磺酰化反应,使用K 2 S 2 O 5作为还原剂和实用的磺酰基源结合N-氟苯磺酰亚胺作为有效的氟制备有价值的芳磺酰氟的方法。资源。考虑到总体实用性和范围,该方法学提供了一条吸引人的途径,可用于生产各种重要的芳烃磺酰氟。
An efficient oxidative radical intermolecular trifluoromethylthioarylation of styrenes with arenediazoniumsalts and copper(I) trifluoromethylthiolate under mild conditions is described for the first time. The reactions provide good yields of the corresponding trifluoromethylthioarylation products with broad substrate scope and excellent functional group compatibility.
A new modular synthetic approach to obtain organic glasses from low-molecular weight azobenzenes and stilbenes has been accomplished using 1,1,1-triphenylpentane crystallization preventing auxiliary groups. Six new structures show excellent solubility in non-polar solvents and thin films with good optical qualities have been obtained using a spin-coating technique. The glass transition temperatures of the new amorphous materials were in the range of 73-108 degrees C. The nonlinear optical activity in thin amorphous films was measured after a corona poling procedure. (C) 2013 Elsevier Ltd. All rights reserved.