Results 151 to 160 of about 37,076 (287)

Enantioselectivity in Transition Metal Catalyzed Propargylic Substitution Reactions: A Theoretical Perspective

Chemistry – A European Journal, EarlyView.
Recent theoretical efforts to elucidate the origin of enantioselectivity in transition metal‐catalyzed propargylic substitution reactions are highlighted in this review. ABSTRACT In recent years, asymmetric catalytic propargylic substitution reactions have undergone remarkable development, enabling the construction of chiral carbon centers adjacent to ...
Ken Sakata, Yoshiaki Nishibayashi
wiley   +1 more source

Propylene Glycol Ethers: Widespread Use and Missing Neurotoxicity Testing. [PDF]

Toxics
Hopf NB, De Luca HP.
europepmc   +1 more source

Insights into the Photocatalytic Arene Bromination Enabled by Cs2AgBiBr6 Microparticles

Chemistry – A European Journal, EarlyView.
A sustainable photocatalytic bromination of electron‐rich arenes is enabled by low‐toxicity Cs2AgBiBr6 double‐perovskite microparticles using HBr as an atom‐economical bromine source. Surface‐derived bromine radicals drive highly selective mono‐bromination under mild conditions.
Daniele Conelli, Chiara Lo Porto, Mokurala Krishnaiah, Kimmo Lahtonen, G. Krishnamurthy Grandhi, Nicola Margiotta, Paola Vivo, Gian Paolo Suranna, Roberto Grisorio   +8 more
wiley   +1 more source

Stable Cyclic Peterson Olefination Intermediates

Chemistry – A European Journal, EarlyView.
We present the first synthesis and characterization of several stable cyclic Peterson olefination intermediates with four carbon bonded substituents at the silicon. The cyclic 1,2‐oxasiletanide intermediates were synthesized via the reaction of an α‐silyl carbanion with various ketones.
Julia Landwehrmann, Beate Neumann, Hans‐Georg Stammler, Berthold Hoge   +3 more
wiley   +1 more source

Organophosphonic acid catalyzed dehydrogenative coupling of hydrosilanes with alcohols under solvent-free conditions

Main Group Metal Chemistry
Han Zhengang, Chai Miaomiao, Bai Yunfeng, Huang Wei, Chen Peng   +4 more
doaj   +1 more source

Safety assessment of the substance phosphorus acid, triphenyl ester, polymer with alpha-hydro-omega-hydroxypoly[oxy(methyl-1,2-ethanediyl)], C10-16 alkyl esters, for use in food contact materials. [PDF]

EFSA J
EFSA Panel on Food Contact Materials (FCM), Lambré C, Crebelli R, da Silva M, Grob K, Lampi E, Milana MR, Pronk M, Ščetar M, Theodoridis G, Van Hoeck E, Waegeneers N, Cariou R, Castle L, Di Consiglio E, Franz R, Tietz T, Comandella D, Rivière G.   +18 more
europepmc   +1 more source

Expedient Discovery of a Metallaphotoredox Cyanomethylation for Synthesizing α‐Aryl Nitriles

Chemistry – A European Journal, EarlyView.
A metallaphotoredox cyanomethylation reaction has been developed for the synthesis of valuable α‐aryl nitrile intermediates. The methodology was successfully applied to diverse medicinally‐relevant substrates, providing an expedient route to anti‐cancer Senexin compounds, while also removing the need for toxic cyanide reagents. The mechanism was probed
Gemma C. Cook, Blandine McKay, Craig Jamieson, Lee J. Edwards, Charlotte Harriman, Zackary S. Read, Simon T. Bate   +6 more
wiley   +1 more source

Slow Release of Bioactive Alcohols From Butenolide Polymers and Coatings

Chemistry – A European Journal, EarlyView.
In this study we have reported the acid‐mediated release of bioactive alcohols from biobased alkoxy butenolide derived copolymers and coatings. It can potentially be applied for slow release of odors, pesticides, or drug‐related compounds from biobased polybutenolides.
Andries Jensma, Jesk T. Jaeger, J. George H. Hermens, Thomas Freese, Jelmer T. Meijer, Rafael Tarozo, Jan L. Sneep, Niels Elders, Keimpe van den Berg, Ben L. Feringa   +9 more
wiley   +1 more source

Base-Promoted Conversion of Propargylic Alcohols to 1,3-Enynes. [PDF]

Org Lett
Delattre M, Wiegand M, Wang Q, Zhu J.
europepmc   +1 more source

Engineering Lipid Nanoparticles for Precision RNA Delivery: Design Principles, Targeting Strategies, and Clinical Prospects

Cancer Nexus, EarlyView.
ABSTRACT Lipid nanoparticles (LNPs) represent the most clinically advanced platform for RNA delivery and have enabled major breakthroughs in vaccines and gene therapies. However, their broader application is still limited by inefficient extrahepatic delivery, immunogenicity, and insufficient control over tissue‐ and cell‐specific targeting. This review
Yu Han, Ying Wang, Xintao Gao, Yan Lei, Yantao Li, Zhiyong Tang   +5 more
wiley   +1 more source