Pathogenic Gram-positive bacteria are highly sensitive to triphenylphosphanegold(O-alkylthiocarbamates), Ph3PAu[SC(OR)=N(p-tolyl)] (R = Me, Et and iPr)
摘要:
磷烷金(I)硫代氨基甲酸酯 Ph3PAu{SC(OR)=NC6H4Me-4} 的 R = Me (1)、Et (2) 和 iPr (3),已被证明具有由磷烷-P 原子和硫醇-S 原子定义的基本线性金原子配位几何结构,对四种革兰氏阳性细菌(即蜡样芽孢杆菌、粪肠球菌和金黄色葡萄球菌)的最小抑菌浓度 (MIC) 值范围为 1-37 .μg/ml;微克/毫升的范围内,对四种革兰氏阳性菌,即蜡样芽孢杆菌、粪肠球菌、粪肠球菌和金黄色葡萄球菌表现出最低抑菌浓度(MIC);化合物 1-3 对 16 种革兰氏阴性菌的作用较弱。由于最低杀菌浓度值与 MIC 值相当接近,因此化合物 1-3 是有效的杀菌剂。对四种革兰氏阳性细菌的特异性作用表明,它们是通过抑制肽聚糖的合成来发挥作用的。
A series of sulfenamides was obtained smoothly from aryl thioureas and amines (mainly secondaryamines) through cross dehydrogenativecoupling reaction (CDC) in the presence of phenyliodine(III) diacetate. The protocol features easily available starting materials, easy and odorless performance, mild reaction conditions, good yields, and a broad substrate scope, illustrating its synthetic value for
<i>N</i>
‐Iodosuccinimide (NIS) Promoted Synthesis of Unsymmetrical Disulfides Starting from Isothiocyanates Under Transition‐Metal‐Free Conditions
作者:Cheng‐Li Yang、Hua‐Qing Xiao、Zhi‐Bing Dong
DOI:10.1002/ejoc.202200954
日期:2022.10.7
Under transition-metal-free conditions, a series of unsymmetrical disulfides could be quickly and conveniently obtained by NIS (N-Iodosuccinimide)-promotion in one pot manner. It's noteworthy that the desired products could be obtained in moderate to good yields from inexpensive and easily available starting materials, providing an alternative way to afford various unsymmetrical disulfides.
在无过渡金属条件下,通过NIS( N -Iodosuccinimide)-促进一锅法可以快速方便地获得一系列不对称二硫化物。值得注意的是,可以从廉价且易于获得的起始材料中以中等至良好的收率获得所需的产品,为提供各种不对称二硫化物提供了一种替代方法。
Copper‐Catalyzed Synthesis of
<i>O/N</i>
‐Alkyl
<i>S</i>
‐Phenyl Phenylcarbamothioates: An Odorless and Chemo‐selective Chan–Lam Reaction to Construct C−S Bond
A series of O/N-alkyl S-phenyl phenylcarbamothioates were obtained smoothly by using odorless organosulfur sources and commercially available phenylboronic acids through a Chan–Lam reaction. The methodology features simple performance, odorless organosulfur source, selective C−S bond formation, and a good functional group tolerance.