37750-29-1Relevant articles and documents
Transition-Metal-Free Synthesis of N-Arylphenothiazines through an N- And S-Arylation Sequence
Matsuzawa, Tsubasa,Hosoya, Takamitsu,Yoshida, Suguru
supporting information, p. 2347 - 2352 (2021/04/05)
An efficient synthetic method of N-arylphenothiazines from o-sulfanylanilines under transition-metal-free conditions is disclosed. An N- and S-arylation sequence of o-sulfanylanilines enabled us to synthesize a wide variety of N-arylphenothiazines. In par
Metal-Free Iodine-Catalyzed Direct Arylthiation of Substituted Anilines with Thiols
Yang, Daoshan,Yan, Kelu,Wei, Wei,Zhao, Jing,Zhang, Mengqi,Sheng, Xuguang,Li, Guoqing,Lu, Shenglei,Wang, Hua
, p. 6083 - 6092 (2015/06/30)
Iodine-catalyzed direct arylthiation of substituted anilines for the synthesis of various diaryl sulfides has been developed under metal- and solvent-free conditions. The present method uses readily available thiols as the arylthiation reagents, and envir
Efficient C-S cross-coupling of thiols with aryl iodides catalyzed by Cu(OAc)2·H2O and 2,2′-biimidazole
Zong, Chenglong,Liu, Jianli,Chen, Shengyan,Zeng, Runsheng,Zou, Jianping
supporting information, p. 212 - 218 (2014/04/03)
The classical Ullmann C-S cross coupling reaction of aryl iodides with aromatic/alkyl thiols under catalysis of 15 mol% Cu(OAc)2· H2O and 15 mol% 2,2′-biimidazole works at 80°C in DMSO for 3 h to provide a variety of aryl sulfides in good to excellent yields. The classical Ullmann C-S cross coupling reaction of aryl iodides with aromatic/alkyl thiols under catalysis of 15 mol% Cu(OAc)2· H2O and 15 mol% 2,2′-biimidazole works at 80°C in DMSO for 3 h to provide a variety of aryl sulfides in good to excellent yields. Copyright
Iron-catalyzed S-arylation of benzothiazole with aryl iodides under aqueous medium: Facile synthesis of aryl(2-aminoaryl) sulfides
Lee, Hang Wai,Yung, Ka Fu,Kwong, Fuk Yee
supporting information, p. 2743 - 2747 (2015/01/08)
A simple route for facile access of aryl(2-aminoaryl) sulfide was reported. With the aid of iron(III) chloride catalyst and diamine ligand, benzothiazole was efficiently S-arylated with various aryl iodides (19 examples) in water under air atmosphere. This operationally simple protocol provides aryl(2-aminoaryl) sulfides in moderate to good yields.
Iron-Catalyzed S-Arylation of Benzothiazole with Aryl Iodides under Aqueous Medium: Facile Synthesis of Aryl(2-aminoaryl) Sulfides
Lee, Hang Wai,Yung, Ka Fu,Kwong, Fuk Yee
, p. 2743 - 2747 (2015/05/05)
A simple route for facile access of aryl(2-aminoaryl) sulfide was reported. With the aid of iron(III) chloride catalyst and diamine ligand, benzothiazole was efficiently S-arylated with various aryl iodides (19 examples) in water under air atmosphere. This operationally simple protocol provides aryl(2-aminoaryl) sulfides in moderate to good yields.
Unexpectedly ligand-free copper-catalyzed C-S cross-coupling of benzothiazole with aryl iodides in aqueous solution
Feng, Yi-Si,Qi, Hong-Xia,Wang, Wei-Cheng,Liang, Yu-Feng,Xu, Hua-Jian
supporting information; experimental part, p. 2914 - 2917 (2012/07/27)
A novel synthetic protocol for 2-aminophenyl sulfide derivatives via the reactions of benzothiazole with aryl iodides was reported for the first time. The reactions were catalyzed by CuCl with tetrabutylammonium hydroxide as the base and water as the solvent without ligand at 50°C or room temperature. A variety of aryl iodides underwent the C-S cross-coupling reaction with benzothiazole to afford smoothly the corresponding products in excellent yield.
Recyclable heterogeneous supported copper-catalyzed coupling of thiols with aryl halides: base-controlled differential arylthiolation of bromoiodobenzenes
Bhadra, Sukalyan,Sreedhar, Bojja,Ranu, Brindaban C.
experimental part, p. 2369 - 2378 (2009/12/28)
Alumina-supported copper sulfate efficiently catalyzes the 5-arylation of aromatic, heteroaromatic and aliphatic thiols with aryl as well as heteroaryl halides under aerobic, ligand-free conditions. This protocol provides an easy access to a variety of thioethers as well as unsymmetrical bis-thioethers by base-controlled differential coupling of thiols with iodo- and bromo-substituents in an aromatic halide. The catalyst is inexpensive, non-air sensitive, environmentally friendly and recyclable.
Microwave-assisted simple and efficient ligand free copper nanoparticle catalyzed aryl-sulfur bond formation
Ranu, Brindaban C.,Saha, Amit,Jana, Ranjan
, p. 2690 - 2696 (2008/09/19)
A new protocol for the coupling of aryl iodides with thiophenols and alkanethiols catalyzed by copper nanoparticles under ligand-free condition has been developed. A variety of functionalized aryl sulfides are prepared in excellent yields under microwave irradiation for 5-7 min. A plausible radical mechanism has been suggested.
Simple and efficient recyclable catalytic system for performing copper-catalysed S-arylation reactions in the presence of water
Carril, Monica,SanMartin, Raul,Dominguez, Esther,Tellitu, Imanol
, p. 5100 - 5105 (2008/02/09)
A novel protocol for the copper-catalysed S-arylation of thiophenol derivatives with aryl halides leading to diaryl sulfides is reported. The reactions were catalysed by a combination of a copper salt and a 1,2-diamine derivative (acting both as the ligand and as the base) using exclusively water as the solvent. The recovery and successful reutilisation of the aqueous medium containing the active catalyst is described. Furthermore, one example of a "one-pot" process involving Br/I exchange of an aryl bromide and further S-arylation is presented.
Sulfonamide derivatives and drugs containing the same as the active ingredient
-
, (2008/06/13)
The present invention discloses a sulfonamide derivative represented by the following formula (1): [wherein A represents a nitrogen atom, —CH═, etc.; Z represents an oxygen atom, etc.; Ar1represents an aryl group, etc.; Ar2represents an alkyl group, etc.; Rarepresents a hydrogen atom, etc.; Rbrepresents a hydrogen atom, etc.; and Rcrepresents an alkyl group, etc.], or a salt thereof; and drugs containing the derivative or a salt thereof as an active ingredient. This compound exhibits radical scavenging action, gastric mucous secretion augmenting action, and anti-HP action, and thus is effective as a peptic ulcer therapeutic agent.