Results 81 to 90 of about 4,664 (217)

A general protocol to afford enantioenriched linear homoprenylic amines [PDF]

, 2013
The reaction of a readily obtained chiral branched homoprenylamonium salt with a range of aldehydes, including aliphatic substrates, affords the corresponding linear isomers in good yields and enantioselectivities.We thank the Spanish Ministerio de ...
Bosque, Irene, Foubelo, Francisco, Gonzalez-Gomez, Jose C.   +2 more
core   +2 more sources

Recent Advances in Conjugated Microporous Polymers for Photocatalysis: Mechanism, Synthesis and Applications

Exploration, EarlyView.
Conjugated microporous polymers (CMPs) have attracted more and more attention as new photocatalysts due to their unique advantages such as high performance, long stability and strong light absorption. This review summarizes the application of CMPs as a photocatalyst in recent years and introduces the catalytic mechanism.
Dun Zhou, Kongqing Zhang, Xiaobai Li, Yongpeng Liu, Liang Yao, Hongwei Ma   +5 more
wiley   +1 more source

Cross-Dehydrogenative Coupling of Tertiary Amines and Terminal Alkynes Catalyzed by Copper Nanoparticles on Zeolite [PDF]

, 2002
A wide range of catalysts based on supported copper nanoparticles have been prepared and tested in the cross-dehydrogenative coupling of tertiary amines and terminal alkynes.
Alonso, Francisco, Arroyo, Adrián, Martín-García, Iris, Moglie, Yanina   +3 more
core   +7 more sources

Preparation of substituted tetrahydroisoquinolines by Pd(II)-catalyzed NH2-directed insertion of Michael acceptors into C-H bonds followed by NH2-conjugated additions [PDF]

, 2017
3,3-Disubstituted tetrahydroisoquinolines are prepared in one step from Michael acceptors and 2-phenylethylamines under Pd catalysis and Ag2CO3 as an oxidant. Presumably, activation of an ortho C-H bond of the aromatic ring with Pd(II) is directed by the
Alamillo, Carla, Albert Mach, Joan, Ariza Piquer, Xavier, Etxabe, Haizea, Farràs i Soler, Jaume, García Gómez, Jordi, Granell Sanvicente, Jaime Ramón, Mancinelli, Andrea, Quijada, F. Javier   +8 more
core   +1 more source

Noninvasive Disease Diagnostics: The Swiss Contribution Highlights to Breath Analysis Research

Helvetica Chimica Acta, EarlyView.
Breath analysis networks across Switzerland linking health monitoring, clinical applications, population studies, and data‐driven public health decisions. ABSTRACT To celebrate the 125th anniversary of the Swiss Chemical Society, we present a review and perspective to highlight the recent research in breath analysis that has been conducted in ...
Stefan James Swift, Kseniya Dryahina, Patrik Španěl, Flora Kontopidou, Christos Kokkotis, Renato Zenobi, Stamatios Giannoukos   +6 more
wiley   +1 more source

Solvent-free oxidative coupling of benzylamine to imine catalyzed by FeVNi composite oxide microflowers

Applied Catalysis O: Open
The solvent-free aerobic oxidative coupling of benzylamines presents a promising avenue for the green synthesis of the corresponding imines. Herein, FeVNi composite oxide microflowers were facilely prepared by a straightforward one-pot hydrothermal ...
Bingbing Pan, Long Wei, Zheng Zhang, Gengxiu Zheng, Peng Wang, Chongfeng Liu, Lingfeng Gao, Xu Sun   +7 more
doaj   +1 more source

Catalytic Hydrogen Production by Ruthenium Complexes from the Conversion of Primary Amines to Nitriles: Potential Application as a Liquid Organic Hydrogen Carrier [PDF]

, 2016
The potential application of the primary amine/nitrile pair as a liquid organic hydrogen carrier (LOHC) has been evaluated. Ruthenium complexes of formula [(p-cym)Ru(NHC)Cl2] (NHC=N-heterocyclic carbene) catalyze the acceptorless dehydrogenation of ...
Ahluwalia, Albero, Armaroli, Axet, Bagal, Ball, Bennett, Bernskoetter, Blagojević, Bonitatibus, Burla, Clapham, Clarke, Clot, Colacino, Corberán, Crabtree, Csabai, Dalebrook, de Bellefon, Dinarès, Dolomanov, Dröge, Díez-González, Eberle, Esswein, Gomez, Gould, Grellier, He, Herrmann, Holladay, Hu, Hu, Jagadeesh, Jena, Jörissen, Koelsch, Kuhn, Luca, Machado, Markiewicz, Mercs, Midilli, Mlostoń, Mukherjee, Müller, Prades, Prechtl, Primo, Reguillo, Sabater, Sabater, Sahler, Samojłowicz, Satyapal, Sheldrick, Teichmann, Teichmann, Tseng, Tseng, Vicent, Vougioukalakis, Werkmeister, Yadav, Zuttel   +65 more
core   +1 more source

Mass spectrometry imaging of N‐linked glycans: Fundamentals and recent advances

Mass Spectrometry Reviews, EarlyView.
Abstract With implications in several medical conditions, N‐linked glycosylation is one of the most important posttranslation modifications present in all living organisms. Due to their nontemplate synthesis, glycan structures are extraordinarily complex and require multiple analytical techniques for complete structural elucidation.
Tana V. Palomino, David C. Muddiman
wiley   +1 more source

First selective direct mono-arylation of piperidines using ruthenium-catalyzed C–H activation [PDF]

, 2013
: A Ru-catalyzed mono-arylation in α-position of saturated cyclic amines is reported employing a C–H activation protocol. Substitution of the pyridine directing group with a bulky group, e.g., trifluoromethyl in the 3-position, proved to be crucial to ...
Karl Kirchner, Maria C. Schwarz, Marko D. Mihovilovic, Michael Schnürch, Navid Dastbaravardeh   +4 more
core   +1 more source

Multiple‐Use Microplate Assay for Submicromolar Ultra High‐Throughput Separation of Amines Based on their Degree of Substitution

ChemistryOpen, EarlyView.
A reusable microplate platform for ultra‐high‐throughput, submicromolar separation of protonated amines – including alkyl‐, aryl‐, and aralkyl‐types – using a tris(pyridino)‐crown ether selector was introduced; the method enables rapid, zero‐energy, parallel purification fully compatible with automated synthesis workflows.
Panna Vezse, Tünde Tóth, Péter Huszthy, Ádám Golcs   +3 more
wiley   +1 more source