6517-80-2Relevant academic research and scientific papers
Benzenesulfonamide Derivatives as Calcium/Calmodulin-Dependent Protein Kinase Inhibitors and Antiviral Agents against Dengue and Zika Virus Infections
Chen, Wei-Chia,Simanjuntak, Yogy,Chu, Li-Wei,Ping, Yueh-Hsin,Lee, Yi-Ling,Lin, Yi-Ling,Li, Wen-Shan
, p. 1313 - 1327 (2020/03/10)
Emerging and resurging mosquito-borne flaviviruses are an important public health challenge. The increased prevalence of dengue virus (DENV) infection has had a significant socioeconomic impact on epidemic countries. The recent outbreak of Zika virus (ZIK
COMPOUNDS TO INHIBIT CALCIUM/CALMODULIN DEPENDENT PROTEIN KINASE II AND APPLICATIONS THEREOF
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, (2019/10/23)
Provided are novel benzenesulfonamide compounds that inhibit calcium/calmodulin-dependent protein kinase II (CaMKII) and pharmaceutical compositions containing the benzenesulfonamide compounds. Also provided are methods of using the benzenesulfonamide com
pH and oxidation-reduction dual-response type nano-container and preparation method thereof
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Paragraph 0038-0041; 0054-0056; 0069-0071, (2019/01/21)
The invention discloses a preparation method of a pH and oxidation-reduction dual-response type nano-container. The preparation method particularly comprises the steps of modifying the surface of a mesoporous silica nano-microsphere with an object chain w
Metal complex and preparation method and application thereof
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Paragraph 0034; 0065, (2019/06/07)
The invention discloses a post-transition metal bisphosphine diamine complex catalyst which is good in substrate applicability, and capable of efficiently catalyzing a hydrogenation alcohol productionreaction of various carbonyl derivatives such as esters, amides and carbonates different in structure. Central metal coordination of the metal complex catalyst has two diaminodiphosphine ligands o-PPh2C6H4NR1R2 and Ph2PCH2CH2NR3R4 (or o-PPh2C6H4CH2NR3R4, Ph2P(CH2) 3NR3R4) different in structure, and the metal complex can be obtained through a simple two-step synthesis method. The catalysts show the advantages of the two ligands in the catalytic hydrogenation process, and the defects of a complex catalyst formed by a single ligand in the aspect of applicability of substrates can be effectivelyovercome.
Catalytic Hydrogenation of Carboxamides with a Bifunctional Cp Ru Catalyst Bearing an Imidazol-2-ylidene with a Protic Aminoethyl Side Chain
Ikariya, Takao,Kawano, Teruhiro,Kayaki, Yoshihito,Watari, Ryo
, p. 2542 - 2547 (2019/06/08)
Synthesis of a Cp Ru complex bearing an NH 2 -functionalized N -heterocyclic carbene (C-N H) was achieved by treatment of CpRuBr(isoprene) with an equimolar amount of a silver complex, which was generated from Ag 2 O and 1-(2-aminoethyl)-3-methylimidazolium bromide, in CH 3 CN at room temperature. The new CpRuBr(C-N H) complex showed a higher catalytic performance than the related CpRuCl(P-N H) and CpRuCl(N-N H) complexes. In the reaction of N -arylcarboxamides, the amine products were obtained in satisfactory yields under mild temperature conditions.
Ruthenium-Pincer-Catalyzed Hydrogenation of Lactams to Amino Alcohols
Chen, Jiangbo,Wang, Jiaquan,Tu, Tao
, p. 2559 - 2565 (2018/07/30)
By using the commercially available ruthenium pincer complex (Ru-MACHO-BH) as a catalyst, the challenging direct hydrogenation of lactams and analogues has been successfully accomplished to deliver corresponding value-added amino alcohols in good-to-excellent yields under mild reaction conditions. Remarkably, in addition to N-protected lactams, unprotected ones could also be readily reduced in the presence of a catalytic amount of weak base or even under neutral reaction conditions, which further highlights the broad substrate scope and the protocol efficiency.
Chelation-promoted Efficient C?H/N?H Cross Dehydrogenative Coupling between Picolinamides and Simple Ethers under Copper Catalysis
Yue, Qiang,Xiao, Zhen,Kuang, Zhengkun,Su, Zhengding,Zhang, Qian,Li, Dong
, p. 1193 - 1198 (2018/02/06)
A highly efficient copper-catalyzed C?H/N?H cross dehydrogenative coupling between picolinamides and simple ethers was developed. The reaction was promoted by the chelation assistance of removable picolinyl group and exhibited excellent TON and TOF number. This method was applicable to both N-aryl and alkyl picolinamides as well as various cyclic and acyclic ethers with good functional group compatibility. It also possessed the merit of air and moisture tolerance and easy operation. (Figure presented.).
An efficient and atom-economical route to: N -aryl amino alcohols from primary amines
Xiao, Zhen,Li, Juanjuan,Yue, Qiang,Zhang, Qian,Li, Dong
, p. 34304 - 34308 (2018/10/24)
In this paper we reported a novel method for generation of N-aryl amino alcohols from N,N-disubstituted picolinamides through reduction/ring-opening reaction with NaBH4. The N,N-disubstituted picolinamides can be easily obtained from primary am
Efficient nickel-catalysed: N -alkylation of amines with alcohols
Afanasenko, Anastasiia,Elangovan, Saravanakumar,Stuart, Marc C. A.,Bonura, Giuseppe,Frusteri, Francesco,Barta, Katalin
, p. 5498 - 5505 (2018/11/20)
The selective N-alkylation of amines with alcohols via the borrowing hydrogen strategy represents a prominent sustainable catalytic method, which produces water as the only by-product and is ideally suited for the catalytic transformation of widely available alcohol reaction partners that can be derived from renewable resources. Intensive research has been devoted to the development of novel catalysts that are mainly based on expensive noble metals. However, the availability of homogeneous or heterogeneous non-precious metal catalysts for this transformation is very limited. Herein we present a highly active and remarkably easy-to-prepare Ni based catalyst system for the selective N-alkylation of amines with alcohols, that is in situ generated from Ni(COD)2 and KOH under ligand-free conditions. This novel method is very efficient for the functionalization of aniline and derivatives with a wide range of aromatic and aliphatic alcohols as well as diols and exhibits excellent functional group tolerance including halides, benzodioxane and heteroaromatic groups. Several TEM measurements combined with elemental analysis were conducted in order to gain insight into the nature of the active catalyst and factors influencing reactivity.
Metal-Free Synthesis of N-Aryl Amides using Organocatalytic Ring-Opening Aminolysis of Lactones
Guo, Wusheng,Gómez, José Enrique,Martínez-Rodríguez, Luis,Bandeira, Nuno A. G.,Bo, Carles,Kleij, Arjan W.
, p. 1969 - 1975 (2017/05/16)
Catalytic ring-opening of bio-sourced non-strained lactones with aromatic amines can offer a straightforward, 100 % atom-economical, and sustainable pathway towards relevant N-aryl amide scaffolds. Herein, the first general, metal-free, and highly efficient N-aryl amide formation is reported from poorly reactive aromatic amines and non-strained lactones under mild operating conditions using an organic bicyclic guanidine catalyst. This protocol has high application potential as exemplified by the formal syntheses of drug-relevant molecules.
