Results 201 to 210 of about 424,465 (437)

Alcohol and endogenous aldehydes damage chromosomes and mutate stem cells

Nature, 2018
J. Garaycoechea, Gerry P. Crossan, Frédéric Langevin, Lee Mulderrig, Sandra Louzada, Fentang Yang, G. Guilbaud, Naomi R. Park, Sophie F. Roerink, S. Nik-Zainal, M. Stratton, K. J. Patel   +11 more
semanticscholar   +1 more source

Double‐Sided Control of Product Type Preference in the Visible‐Light Initiated Reaction of 1,3‐Dicarbonyl Compounds with Alkenes

Advanced Synthesis &Catalysis, EarlyView.
Abstract The demonstrated light‐initiated addition of radicals formed on an active methylene group to styrene derivatives exhibits a product selectivity influenced by the presence of a protic solvent. Under protic conditions, the predominant products are branched compounds with the alkene moiety attached to the methylene group.
Małgorzata Pałyga, Jan Rzepiela, Sebastian Baś   +2 more
wiley   +1 more source

Bases of inorganic and organic chemistry [PDF]

, 2016
Stated fundamental theoretical principles of general, inorganic and organic chemistry and analyzed the reactivity of the most important classes of inorganic and organic substances. A multivariate tasks and exercises for classroom and independent work are
Alami, D., Slavkova, M., Ved, M.
core  

Constant Enzymatic in situ Production of H2O2 for an Unspecific Peroxygenase by an l–Amino Acid Oxidase

Advanced Synthesis &Catalysis, EarlyView.
Abstract Unspecific Peroxygenases have been the subject of a lot of research in the recent past as they offer opportunities for green hydroxylation reactions using hydrogen peroxide (H2O2) as donor. A striking problem of UPOs is their low stability against their own co‐substrate H2O2. In order to prevent the deactivation, we developed an enzyme cascade
Simon Last, Tobias Heinks, Niklas Dietz, Simon Koopmeiners, Gabriele Fischer von Mollard, Martin J. Weissenborn, Jan von Langermann   +6 more
wiley   +1 more source

Merging Photoredox Catalysis with Organocatalysis: The Direct Asymmetric Alkylation of Aldehydes

Science, 2008
David A. Nicewicz, D. MacMillan
semanticscholar   +1 more source

Continuous Flow Technology Enabling Photochemistry

Advanced Synthesis &Catalysis, EarlyView.
Abstract The merger of continuous flow technology and modern photochemistry has enabled countless applications showcasing new opportunities for chemical synthesis demonstrating improvements in selectivity, safety, sustainability and scalability. This focused review aims to highlight a selection of recently published case studies from academic and ...
Ruairi Crawford, Marcus Baumann
wiley   +1 more source

INTRACELLULAR DISTRIBUTION OF BETAINE ALDEHYDE OXIDASE

, 1952
John Williams
openalex   +1 more source

Synthesis of spirolactones from carbonyls via carboborylation of N‐sulfonylhydrazones with alkoxycarbonylalkylboronic acids

Advanced Synthesis &Catalysis, Accepted Article.
A straightforward synthesis of spirolactones from carbonyls via N‐tosylhydrazones is described. The process consist in the reaction between the N‐tosylhydrazone and ethoxycarbonylethylboronic acid or ethoxycarbonylpropylboronic acid, leading to spiro γ‐butyrolactones or δ‐valerolactones respectively. The transformation takes place by carboborylation of
Lucía López, Sara Filgueira, María-Paz Cabal, Alfonso Carlos Valdés-Gómez   +3 more
wiley   +1 more source

Surface Modifications of PCB-Based Plasma Sources Induced by Atmospheric Plasma: A Comparative Study of Dielectric and Electrode Materials [PDF]

arXiv
The study investigated the effects of atmospheric plasma on various dielectric materials (FR-4, PTFE, Al$_2$O$_3$) and electrode materials (copper, silver, gold-plated copper) used in surface micro-discharge plasma sources. XPS and laser microscopy were used to analyze changes in surface properties and chemical composition after 10 hours of plasma ...
arxiv  

Photochemical Preparation of (Aza‐)Indolines: Diastereoselective Synthesis and Polarity Reversal Strategy

Advanced Synthesis &Catalysis, Accepted Article.
Herein, we present the first light‐mediated, diastereoselective de novo synthesis for 2,3‐substituted indolines, a privileged scaffold in pharmaceuticals. The protocol was tested with various aryl and alkyl groups, maintaining high yields up to 85% across different substituents.
Julian Melder, Maxi Heldner, Julia Svetličić, Abdinasir Adow, Frank Rominger, Matthias Rudolph, Guenter Helmchen, A. Stephen K. Hashmi   +7 more
wiley   +1 more source