1836-75-5Relevant articles and documents
Microwave assisted aromatic nucleophilic substitution reaction under solventless condition
Rebeiro, Geeta L.,Khadilkar, Bhushan M.
, p. 1405 - 1410 (2003)
We report here microwave assisted aromatic nucleophilic substitution reaction of 1-chloro-4-nitrobenzene with different phenoxides.
AGRICULTURAL CHEMICALS
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Page/Page column 56; 95, (2019/08/08)
The present invention relates to picolinic acid derivatives that are useful in treating fungal diseases ofplants.
From Anilines to Aryl Ethers: A Facile, Efficient, and Versatile Synthetic Method Employing Mild Conditions
Wang, Dong-Yu,Yang, Ze-Kun,Wang, Chao,Zhang, Ao,Uchiyama, Masanobu
supporting information, p. 3641 - 3645 (2018/03/13)
We have developed a simple and direct method for the synthesis of aryl ethers by reacting alcohols/phenols (ROH) with aryl ammonium salts (ArNMe3+), which are readily prepared from anilines (ArNR′2, R′=H or Me). This reaction proceeds smoothly and rapidly (within a few hours) at room temperature in the presence of a commercially available base, such as KOtBu or KHMDS, and has a broad substrate scope with respect to both ROH and ArNR′2. It is scalable and compatible with a wide range of functional groups.
Synthesis, SAR and molecular docking study of novel non-β-lactam inhibitors of TEM type β-lactamase
Antipin, Roman L.,Beshnova, Daria A.,Petrov, Rostislav A.,Shiryaeva, Anna S.,Andreeva, Irina P.,Grigorenko, Vitaly G.,Rubtsova, Maya Yu.,Majouga, Alexander G.,Lamzin, Victor S.,Egorov, Alexey M.
supporting information, p. 1588 - 1592 (2017/03/17)
The novel classes of acylated phenoxyanilide and thiourea compounds were investigated for their ability to inhibit TEM type β-lactamase enzyme. Two compounds 4g and 5c reveal the inhibition potency in micromolar range and show their action by non-covalent binding in the vicinity of the TEM-171 active site. The structure activity relationship around carbon chain length and different substituents in ortho- and para-positions of acylated phenoxyanilide as well as molecular modelling study has been performed.
Structure-based design of N-substituted 1-hydroxy-4-sulfamoyl-2-naphthoates as selective inhibitors of the Mcl-1 oncoprotein
Lanning, Maryanna E.,Yu, Wenbo,Yap, Jeremy L.,Chauhan, Jay,Chen, Lijia,Whiting, Ellis,Pidugu, Lakshmi S.,Atkinson, Tyler,Bailey, Hala,Li, Willy,Roth, Braden M.,Hynicka, Lauren,Chesko, Kirsty,Toth, Eric A.,Shapiro, Paul,MacKerell, Alexander D.,Wilder, Paul T.,Fletcher, Steven
, p. 273 - 292 (2016/03/22)
Structure-based drug design was utilized to develop novel, 1-hydroxy-2-naphthoate-based small-molecule inhibitors of Mcl-1. Ligand design was driven by exploiting a salt bridge with R263 and interactions with the p2 pocket of the protein. Significantly, target molecules were accessed in just two synthetic steps, suggesting further optimization will require minimal synthetic effort. Molecular modeling using the Site-Identification by Ligand Competitive Saturation (SILCS) approach was used to qualitatively direct ligand design as well as develop quantitative models for inhibitor binding affinity to Mcl-1 and the Bcl-2 relative Bcl-xL as well as for the specificity of binding to the two proteins. Results indicated hydrophobic interactions in the p2 pocket dominated affinity of the most favourable binding ligand (3bl: Ki = 31 nM). Compounds were up to 19-fold selective for Mcl-1 over Bcl-xL. Selectivity of the inhibitors was driven by interactions with the deeper p2 pocket in Mcl-1 versus Bcl-xL. The SILCS-based SAR of the present compounds represents the foundation for the development of Mcl-1 specific inhibitors with the potential to treat a wide range of solid tumours and hematological cancers, including acute myeloid leukemia.
CsF/clinoptilolite: An efficient solid base in SNAr and copper-catalyzed Ullmann reactions
Keipour, Hoda,Hosseini, Abolfazl,Afsari, Amir,Oladee, Razieh,Khalilzadeh, Mohammad A.,Ollevier, Thierry
, p. 95 - 104 (2016/01/16)
CsF/clinoptilolite was found to be an efficient solid base catalyst for both SNAr and Ullmann ether reactions. A general and efficient one-step procedure was developed for the synthesis of biaryl ethers via direct coupling of electron-deficient aryl halides to phenols using CsF/clinoptilolite. The protocol was also applied to electron-rich aryl halides by addition of a catalytic amount of copper oxide nanoparticles. Both SNAr and Ullmann reactions were rapid and provided good to excellent yields.
Discovery of 1,2,4-triazole-1,3-disulfonamides as dual inhibitors of mitochondrial complex II and complex III
Cheng, Hua,Shen, Yan-Qing,Pan, Xia-Yan,Hou, Yi-Ping,Wu, Qiong-You,Yang, Guang-Fu
, p. 7281 - 7292 (2015/09/02)
Respiratory chain succinate-ubiquinone oxidoreductase (SQR or complex II) and ubihydroquinone-cytochrome (cyt) c oxidoreductase (cyt bc1 or complex III) have been demonstrated as the promising targets of numerous antibiotics and fungicides. As a continuation of our research work on the development of new fungicides, a series of 1,2,4-triazole-1,3-disulfonamide derivatives with dual functions targeting both SQR and cyt bc1 were designed and synthesized by coupling diverse diphenyl ether moieties with triazolesulfonamide units. These newly synthesized compounds were characterized by elemental analyses, 1H NMR and ESI-MS spectrometry. The in vitro assay indicated that most of the synthesized compounds displayed good inhibition against porcine succinate-cytochrome reductase (SCR) with IC50 values ranging from 3.2 to 81.8 μM, revealing much higher activity than that of the commercial control amisulbrom whose IC50 value is 93.0 μM. Further evaluation against the respective SQR and cyt bc1 indicated that most compounds exhibited SQR-inhibiting activity as well as cyt bc1-inhibiting activity, but the inhibition potency against SQR is much higher than that against cyt bc1, showing that the SCR inhibition might be contributed greatly by the SQR inhibition. The further antibacterial evaluation against Xanthomonas oryzae pv. oryzae revealed that four compounds showed excellent potency at the concentration of 20 μg mL-1. In particular, compounds 6h and 6j exhibited much better antibacterial activity than the commercial control bismerthiazol in terms of their EC50. Impressively, 6j has an EC90 of 33.62 μg mL-1, more than 10-fold higher than that of bismerthiazol.
MOLECULARLY IMPRINTED SMART POLYMERS (MISPs)
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, (2011/07/29)
Molecularly imprinted smart polymers (MISPs) are provided herein, as well as novel monomers for preparing MISPs, and processes for preparing MISPs. The MISPs can be used applications such as, for example, detecting/absorbing or isolating biological and non-biological agents. The MISPs described herein comprise responsive monomeric units which undergo a physico-chemical change (e.g., a bond formation or cleavage) in response to an external change, such that the MISP selectively binds to a target molecule and releases a bound target molecule in response to the external change.
Potassium fluoride supported on natural nanoporous zeolite: A new solid base for the synthesis of diaryl ethers
Khalilzadeh, Mohammad A.,Hosseini, Abolfazl,Pilevar, Afsaneh
experimental part, p. 1587 - 1592 (2011/04/22)
An efficient and inexpensive synthesis of diaryl ethers has been developed. The process involves the nucleophilic aromatic substitution of electron-deficient aryl halides and phenols and is mediated by potassium fluoride/Clinoptilolite (KF/CP) in dimethyl sulfoxide (DMSO). The approach affords good to excellent yields of the arylated products without the need for additional cation capture. The solid base is also efficient in the Ullmann ether synthesis. A new, inexpensive solid base for the synthesis of diaryl ethers has been developed. Clinoptilolite, a natural zeolite with a high tendency for cation capture, combined with potassium fluoride, provides an efficientsolid base for the deprotonation of phenols in nucleophilic reactions. The same solid base acts as a reliable base for the copper-catalyzed synthesis of diaryl ethers. Copyright
Host-guest interaction of pesticide bifenox with cyclodextrin molecules. an electrochemical study
Hromadova, Magdalena,Sokolova, Romana,PospiSil, Lubomir,Lachmanova, Stipanka,Fanelli, Nicolangelo,Giannarelli, Stefania
body text, p. 1647 - 1664 (2010/08/05)
The reduction of nitroaromatic compound bifenox (methyl 5-(2,4-dichlorophenoxy)-2-nitrobenzoate) was studied in aprotic solvents in the absence or presence of cyclodextrin (CD) molecules of different cavity sizes. βCD and γCD form complexes with bifenox i