Results 61 to 70 of about 23,803 (294)

Highly Enantioselective Organocatalysis with Bidentate Halogen Bond Donors

Angewandte Chemie International Edition, EarlyView.
In a model Mukaiyama aldol reaction with unbiased substrates, high enantioselectivity was achieved with a modifiable bidentate iodine(I)‐based halogen bonding organocatalyst. The crucial role of halogen bonding was confirmed by the low performance of the corresponding hydrogen bond donor and via DFT calculations.
Julian Wolf, Meghana Poliyodath Mohanan, Raphaël Robidas, Revannath L. Sutar, Elric Engelage, Claude Y. Legault, Stefan M. Huber   +6 more
wiley   +1 more source

Visualising substrate-fingermark interactions: Solid-state NMR spectroscopy of amino acid reagent development on cellulose substrates [PDF]

, 2015
© 2015 Elsevier Ireland Ltd. Most spectroscopic studies of the reaction products formed by ninhydrin, 1,2-indanedione-zinc (Ind-Zn) and 1,8-diazafluoren-9-one (DFO) when reacted with amino acids or latent fingermarks on paper substrates are focused on ...
Lennard, C, Roux, C, Shimmon, R, Spindler, X   +3 more
core   +1 more source

COLORING PROPERTIES OF WOOL FABRIC COLORED BY NEW DYESTUFFS - AZOMETHINES [PDF]

Annals of the University of Oradea: Fascicle of Textiles, Leatherwork, 2016
The azomethines have broad applications in food and dyestuff industries, and in analytical chemistry, catalysis and also in the field of agrochemical.
DJORDJEVIC Dragan, SMELCEROVIC Miodrag, MICIC Aleksandra, AMIN Goran, MILIC Dragan   +4 more
doaj  

1-Decylindoline-2,3-dione

Acta Crystallographica Section E, 2010
In the title N-alkyl isatin, C18H25NO2, the isatin moiety is almost planar (r.m.s. deviation = 0.03 Å). C—C—C—C torsion angles of the decyl substituent indicate an all-antiperiplanar conformation.
Khalil Mamari, Hafid Zouihri, El Mokhtar Essassi, Seik Weng Ng   +3 more
doaj   +1 more source

Advances in Metal‐Free Transamidation: A Sustainable Approach to Amide Bond Formation

Chemistry – An Asian Journal, EarlyView.
This review highlights the recent developments of transamidation reactions under metal‐free reaction conditions. Various amines including weak nucleophilic amines such as aromatic amines have been used to achieve the transamidation reactions under mild and relatively green reaction conditions. Abstract The amide functionalities are a crucial functional
Niharan Sivaraj, Toshifumi Dohi, Fateh V. Singh   +2 more
wiley   +1 more source

Organocatalytic Enantioselective Friedel-Crafts Aminoalkylation of Indoles in the Carbocyclic Ring [PDF]

, 2016
The first general catalytic method for the, so far elusive, enantioselective Friedel−Crafts functionalization of indoles in the carbocyclic ring is presented.
Blay Llinares, Gonzalo, Fernández Picot, Isabel, Montesinos Magraner, Marc, Muñoz, M. Carmen, Pedro, José Ramón, Rendón-Patiño, Alejandra, Vila Descals, Carlos   +6 more
core   +6 more sources

Organocatalytic Enantioselective Conjugate Addition of Isoxazol‐5(4H)‐Ones to Aurone‐Derived Azadienes

ChemCatChem, EarlyView.
The efficient and robust enantioselective organocatalytic methodology was developed for the conjugate addition of isoxazol‐5(4H)‐ones to aurone‐derived azadienes. This approach provided products featuring benzofuran and isoxazole rings with high yields and enantioselectivities.
Ricardo Torán, Jordi Torró, Amparo Sanz‐Marco, Carlos Vila, Gonzalo Blay   +4 more
wiley   +1 more source

Daganatos sejtek rezisztenciáját gátló vegyületek fejlesztése = Development of compounds targeting multidrug resistant cancer [PDF]

, 2009
A korszerű daganatellenes terápia jelentős sikerei ellenére a kemoterápiával szemben fellépő rezisztencia (multidrog rezisztencia, MDR) továbbra is megoldásra váró klinikai kihívás.
Szakács, Gergely
core  

Advances in Mechanochemical Methods for One‐Pot Multistep Organic Synthesis

Chemistry – A European Journal, EarlyView.
This review highlights recent advances in mechanochemical methods for multistep organic synthesis, focusing on sequential one‐pot approaches performed by grinding or ball milling. The presented transformations are discussed in terms of efficiency, applicability, and sustainability, assessing both the challenges and potential of solvent‐free one‐pot ...
Nina Biedermann, Michael Schnürch
wiley   +1 more source

A Series of Isatin-Hydrazones with Cytotoxic Activity and CDK2 Kinase Inhibitory Activity: A Potential Type II ATP Competitive Inhibitor

Molecules, 2020
Isatin derivatives potentially act on various biological targets. In this article, a series of novel isatin-hydrazones were synthesized in excellent yields.
Huda S. A Al-Salem, Md Arifuzzaman, H. Alkahtani, Ashraf N. Abdalla, Iman S. Issa, A. Alqathama, Fatemah S. Albalawi, A. Rahman   +7 more
semanticscholar   +1 more source