已经研究了各种反式-1,2-二芳基醚与亚硫酰氯的反应性。在温和条件下,所有底物都可以轻松获得中等收率的3-氯苯并[ b ]噻吩和少量的苏-和赤-1,2-二氯-1,2-二芳基乙烷。首次发现苯环上带有甲氧基的1,2-二氯-1,2-二芳基乙烷的非对映异构体在亚硫酰氯的处理下也被转化为氯苯并[ b ]噻吩。化学转化已经机械化合理化,并成功地应用于一锅合成含有苯并[ b]的新型荧光液晶化合物。]噻吩和1,3,4-恶二唑单元。还描述了它们的光谱和介晶行为。
Aromatic Ring Opening of Fused Thiophenes via Organolithium Addition to Sulfur
作者:B. Hill、M. De Vleeschauwer、K. Houde、M. Belley
DOI:10.1055/s-1998-1674
日期:1998.4
Organolithium reagents can add to the sulfur atom of thiophenes that are substituted by a chlorine atom and fused to another aromatic system, at -78 °C, to give ortho-substituted aryl sulfides.
有机锂试剂可以与被氯原子取代并与另一个芳族系统稠合的噻吩的硫原子加成,在 -78 °C 下,得到邻位取代的芳基硫化物。
Sodium halides as the source of electrophilic halogens in green synthesis of 3-halo- and 3, n -dihalobenzo[ b ]thiophenes
A convenient methodology for the synthesis of mono- and di-halogenated benzo[b]thiophenes is described herein, which utilizes copper(II) sulfate pentahydrate and various sodium halides in the presence of substituted 2-alkynylthioanisoles. The proposed method is facile, uses ethanol as a green solvent, and results in uniquely substituted benzo[b]thiophene structures with isolated yields up to 96%. The
Phthalimidesulfenyl Chloride; Part VII:<sup>1</sup>Synthesis of 2-Substituted 3-Chlorobenzo[<i>b</i>]thiophenes and Related Heteroaromatics
作者:Giuseppe Capozzi、Francesco De Sio、Stefano Menichetti、Cristina Nativi、Pier Luca Pacini
DOI:10.1055/s-1994-25516
日期:——
Addition of phthalimidesulfenyl chloride (1) to diaryl- or alkyl(aryl) acetylenes affords (E)-ß-chlorovinylsulfenamides 3. These species react with aluminum trichloride and other Lewis acids to give benzo-[b]thiophenes 6 through an intramolecular electrophilic substitution. The reaction is very simple and seems insensitive to the nature of substituents at the double bond of vinylsulfenamides 3. Following the same strategy the thienothiophene 11 and the condensed thiopyran 12 were also prepared.
Synthesis and Evaluation of 3-Halobenzo[b]thiophenes as Potential Antibacterial and Antifungal Agents
作者:Prerna J. Masih、Tanay Kesharwani、Elivet Rodriguez、Mia A. Vertudez、Mina L. Motakhaveri、Terelan K. Le、Minh Kieu T. Tran、Matthew R. Cloyd、Cory T. Kornman、Aimee M. Phillips
DOI:10.3390/ph15010039
日期:——
with copper(II) sulfate. This environmentally benign methodology is facile, uses ethanol as the solvent, and results in 3-halo substituted benzo[b]thiophene structures in very high yields. The cyclohexanol-substituted 3-chloro and 3-bromobenzo[b]thiophenes resulted in a low MIC of 16 µg/mL against Gram-positive bacteria and yeast. Additionally, in silico absorption, distribution, metabolism, and excretion
全球对抗菌素耐药性的健康关注已引起人们的研究兴趣,以寻找新类别的抗生素来对抗致病病原体。在我们的研究中,合成了3-卤代苯并[ b ]噻吩衍生物,并使用肉汤微量稀释药敏法测试了其抗菌活性。3-卤素取代的苯并[ b ]噻吩是从2-炔基茴香硫醚开始使用方便的亲电环化方法合成的,该方法利用卤化钠作为与硫酸铜(II)反应时的亲电卤素源。这种环境友好的方法很简单,使用乙醇作为溶剂,并以非常高的产率产生3-卤代苯并[ b ]噻吩结构。环己醇取代的 3-氯和 3-溴苯并[ b ]噻吩对革兰氏阳性细菌和酵母的 MIC 较低,为 16 µg/mL。此外,还确定了化合物的计算机吸收、分布、代谢和排泄 (ADME) 特性。具有最低 MIC 值的化合物表现出优异的类药特性,且不会违反 Lipinski、Veber 和 Muegge 过滤器的要求。获得了环己醇取代的3-氯苯并[ b ]噻吩对金黄色葡萄球菌的时间杀灭曲线,其在MIC下表现出快速杀菌活性。
[EN] PROCESS FOR THE SYNTHESIS OF BENZO[b]THIOPHENES<br/>[FR] PROCEDE DE SYNTHESE DE BENZO[b]THIOPHENES
申请人:ELI LILLY AND COMPANY
公开号:WO1996040677A1
公开(公告)日:1996-12-19
(EN) The present invention is directed to new processes for the synthesis of 2-aryl benzo[b]thiophenes.(FR) L'invention concerne de nouveaux procédés de synthèse de 2-arylbenzo[b]thiophènes.