Results 91 to 100 of about 12,918 (277)
Advanced Science, EarlyView.Tpy–Zn complexes serve as versatile building blocks for the modular assembly of functional materials, including polymers, gels, MOFs, cages, and composites through programmed noncovalent interactions, empowering practical applications in visual molecular recognition, smart functional materials, and photocatalytic transformations. ABSTRACT As one of the
Lixin Duan +4 more
wiley +1 more source
Angewandte Chemie, EarlyView.An enantioselective rhodium‐catalyzed [2 + 2 + 2] cycloaddition enables the synthesis of axially chiral diaryl ethers. Carbonyl coordination ensures high reactivity and regioselectivity, affording products bearing up to four stereogenic axes with good enantio‐ and diastereoselectivity.
Yu Sato +3 more
wiley +2 more sources
, 2019 Reductive debromination has been widely studied for the degradation of polybrominated diphenyl ethers (PBDEs), although the reaction mechanisms are not so clear.
Shun Guo +9 more
core +1 more source
Modular Electronic Microrobots With Onboard Sensor‐Program‐Steered Locomotion
Advanced Intelligent Systems, EarlyView.Modular electronic smartlet microrobots integrate ambient‐light energy harvesting, photodetection, programmable CMOS control, and bubble‐based actuation within a sub‐millimeter fold‐up architecture. A 58‐bit on‐board CMOS chiplet enables sensor–program steered switching between independently addressable actuators, achieving closed‐loop 2D navigation in
Vineeth K. Bandari +6 more
wiley +1 more source
Oxime derivatives : versatile reagents for radical-mediated syntheses of heterocycles
, 2010 A summary of tin hydride mediated reactions in generating radicals in organic synthesis is presented, together with some of the many alternative methods now available for conducting radical reactions.
Portela-Cubillo, Fernando
core
Enzyme‐Like Synthetic Cleft for Light‐Driven Water‐Oxidation Catalysis Via an Oxide Relay Pathway
Angewandte Chemie, EarlyView.A carboxylic acid group introduced into the second coordination sphere of a Ru(bda) water oxidation catalyst forms a defined hydrogen bond within the catalytic cleft. This interaction locks the group in place and enables an intramolecular oxide relay pathway between Ru(V)═O and the carboxylate group, providing a distinct and efficient route for O─O ...
Daniel A. P. Friedewald +7 more
wiley +2 more sources
POLYMERIZATION OF VINYL ETHERS
, 1932 A number of vinyl ethers investigated were found to undergo violent polymerization reactions on the addition of free iodine. With very small amounts of the catalyst, considerable differences in polymerizability are disclosed, the phenyl ether being ...
William Chalmers
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Non‐Dilute Synthesis of Macrodiolides and Macrotetrolides Enabled by Confinement Catalysis
Angewandte Chemie, EarlyView.Confinement catalysis within a hexameric resorcin[4]arene capsule enables macrolactonization under non‐dilute conditions (up to 0.1 M), overcoming the limitations of high‐dilution protocols (0.1–10 mM). This strategy provides direct access to 18–32‐membered macrodiolides and 26–32‐membered macrotetrolides in one pot and unlocks previously inaccessible ...
Feng‐Yuan Wang +3 more
wiley +2 more sources
Occurrence of herbicides and their transformation products in sewage sludge: a review
Plant, Soil and EnvironmentThe beneficial reuse of sewage sludge in agricultural soils is limited by the accumulation of micropollutants of emerging concern, which may pose significant environmental and human health risks.
Madhusha Mihirani Subasinghe +4 more
doaj +1 more source
, 1998 The reaction of ethyl 2,4,6-trinitrophenyl ether with aniline in dimethyl sulfoxide containing Dabco occurs in two stages. The first gives 5, the σ -adduct intermediate on the substitution pathway, which has been identified spectroscopically. The second
Michael R Crampton, Ian A Robotham
core +1 more source