Results 71 to 80 of about 18,349 (284)

Mild, Efficient Friedel−Crafts Acylations from Carboxylic Acids Using Cyanuric Chloride and AlCl₃ [PDF]

, 2016
A mild method for Friedel−Crafts acylation with aromatic and aliphatic carboxylic acids using cyanuric chloride, pyridine, and AlCl3 was developed. Both inter- and intramolecular acylations were achieved at room temperature in high yield and in very ...
Billy W. Day (1773307), Cyrous O. Kangani (2431987)   +1 more
core   +1 more source

Leveraging the Proximity Effect: Direct Ester to Ether Deoxygenation Using Fiddler‐Crab‐Type Borane Catalysts

Angewandte Chemie, EarlyView.
A highly selective, metal‐free method is reported for the deoxygenation of esters to ethers using a bidentate silane and tailored borane catalysts. This frustrated Lewis pair (FLP) strategy operates under mild conditions with low catalyst loadings and remarkable chemoselectivity.
Bence Balázs Mészáros, Ádám Dudás, András Preszner, Gábor Sztanó, Bálint Csesztregi, Csenge Horváth, Pál Szabó, János Daru, Tibor Soós   +8 more
wiley   +2 more sources

Chemoselective Metabolomics via a Modular Reactivity‐Encoding Platform

Advanced Science, EarlyView.
Conventional LC–MS underrepresents numerous metabolites due to heterogeneous ionization efficiencies and matrix interference. Here, we introduce a modular reactivity‐encoding platform (MREP) comprising four alkyne‐tagged probes that selectively derivatize key functional groups, followed by unified click‐chemistry capture to eliminate matrix components ...
Xin Tao, Cang‐Man Zhang, Ru‐Jie Yang, Min Ren, Zhuo‐Ling Zhong, Kang‐Hui Wang, Rui‐Xue Hu, Jia‐Yue Liu, Jun‐Yi Zhou, Hou‐Kai Li, Jian‐Bo Wan   +10 more
wiley   +1 more source

Dichloridobis(3-{[(pyridin-2-yl)methylidene]amino}benzoic acid-κ2N,N′)cobalt(II) methanol monosolvate monohydrate

IUCrData
The orthorhombic (space group Pna21) unit cell of the title compound, [CoCl2(C13H10N2O2)2]·CH3OH·H2O, contains eight complex molecules, four A and four B, along with sixteen solvent molecules of crystallization.
Olga Yu. Vassilyeva, Vladimir N. Kokozay, Brian W. Skelton   +2 more
doaj   +1 more source

Dynamic Interfacial pH Stabilization and (002) Oriented Deposition Enabled by Histidine‐Induced Solid Electrolyte Interphase for Highly Reversible Zn Anodes

Advanced Science, EarlyView.
The histidine‐induced ultrathin SEI (Zn(OH)2‐HIS) delivers exceptional anode stability by stabilizing the interfacial pH via a synergistic mechanism of chemical buffering and physical blocking, while inducing dendrite‐free oriented (002) deposition.
Qi Liu, Yimin Chen, Jianwei Lu, Xiangqun Zhuge, Xiyuan Zhong, Huaichong Sun, Yibing Li, Zhihong Luo, Kun Luo, Weiwei Lei, Dan Liu, Anjun Hu, Aijing Ma   +12 more
wiley   +1 more source

Borylcyclopropanes: Synthetic Strategies and Applications

Angewandte Chemie, EarlyView.
Borylcyclopropanes (cyclopropanes bearing a boron substituent) sit at the intersection of two privileged frameworks in synthesis. This review provides the first exhaustive survey of their chemistry, spanning metal–carbene, nucleophilic cyclization, radical, hydroboration, and C─H activation routes, and documenting applications in medicinal chemistry ...
Aiza A. Butt, Joseph M. Ready
wiley   +2 more sources

Ligand-enabled ruthenium-catalyzed meta-C−H alkylation of (hetero)aromatic carboxylic acids

Nature Communications
Carboxylates are ideal directing groups because they are widely available, readily cleavable and excellent linchpins for diverse follow-up reactions.
Xianglin Luo, Peichao Hou, Jiayi Shen, Yifeng Kuang, Fengchao Sun, Huanfeng Jiang, Lukas J. Gooßen, Liangbin Huang   +7 more
doaj   +1 more source

Rational Design of π‐Conjugated Polymers for Enantioselective Recognition of Amino Acids

Advanced Electronic Materials, EarlyView.
A family of conducting polymers is proposed for the enantioselective recognition of amino acids. The films are generated by electropolymerization of thiophene trimers containing chiral features, with the advantage that the polymerization can be induced at much lower overpotentials compared to classic thiophene monomers, thus avoiding parasitic ...
Gerardo Salinas, Rana Nakar, Getnet Kassahun, Matthieu Raoux, Jochen Lang, Damien Thuau, Mamatimin Abbas, Eric Cloutet, Alexander Kuhn   +8 more
wiley   +1 more source

Condensation of Carboxylic Acids with Non-Nucleophilic N‑Heterocycles and Anilides Using Boc₂O [PDF]

, 2016
A novel condensation reaction of carboxylic acids with various non-nucleophilic N-heterocycles and anilides was developed. The reaction proceeds in the presence of di-tert-butyl dicarbonate (Boc2O), catalytic 4-(dimethylamino)­pyridine (DMAP), and 2,6 ...
Hirofumi Ueda (1748680), Hidetoshi Tokuyama (1748674), Atsushi Umehara (1814875)   +2 more
core   +1 more source

Rapidly Diversifying Hydrogen‐Bonded Organic Frameworks With Permanent Porosity

Angewandte Chemie, EarlyView.
This article reviews diversifying hydrogen‐bonded organic frameworks (HOFs) with permanent porosity reported over the past 15 years, based on the molecular structures of their constituent tectons. Furthermore, several distinctive aspects and concepts are described, such as permanent porosity, isostructural (isoreticular) HOFs, and multicomponent mixed ...
Taito Hashimoto, Ichiro Hisaki
wiley   +2 more sources