Results 201 to 210 of about 11,966,007 (283)

Novel Use of Intravascular Lithotripsy for the Mobilization of an Entrapped Coronary Guidewire in a Heavily Calcified LAD/DB Bifurcation Lesion—A Case Report

open access: yesCatheterization and Cardiovascular Interventions, EarlyView.
ABSTRACT A 64‑year‑old man with a Non–ST‑elevation myocardial infarction (NSTEMI) underwent coronary angiography, which revealed single‑vessel disease with a high‑grade proximal and a severely calcified mid‑LAD lesion just proximal to a diagonal branch (DB). Both the LAD and the DB were wired.
Hansmartin Jetter   +2 more
wiley   +1 more source

Challenges of Bio‐Syngas Conversion to High‐Value‐Added Liquid Chemicals and Fuels via COx Hydrogenation

open access: yesCarbon Energy, EarlyView.
Converting biomass‐derived syngas into value‐added fuels and chemicals offers a promising route toward carbon neutrality, yet unfavorable H2/COx ratios, elevated CO2 levels, and trace impurities pose persistent obstacles. This review examines strategies spanning syngas conditioning, impurity‐tolerant catalyst development, and integrated process design,
Xuan Bie   +7 more
wiley   +1 more source

Thermally Activated Delayed Fluorescence: An Extended Study of Peripherally Substituted DMAC‐TRZ Analogues

open access: yesChemistry – A European Journal, EarlyView.
A comprehensive experimental and theoretical study is presented of a family of TADF dyes. Comparing the behavior of structurally related dyes, we uncover the subtle and somewhat unexpected role of conformational degrees of freedom associated with peripheral groups that affect the delicate interplay of excited states that governs spin–orbit coupling ...
Andrea Landi   +7 more
wiley   +1 more source

Stereochemical Control in the Matteson Reaction

open access: yesChemistry – A European Journal, EarlyView.
The Matteson homologation is a highly versatile method for the stereoselective insertion of carbenoids into boronic esters. Through iterative application of the process, complex chiral molecules can be synthesized. The stereoselectivity of the reaction is determined by a chiral diol incorporated in the boronic ester.
Hae Mo Lee, Christoph Hirschhäuser
wiley   +1 more source

Modeling Alkylcopper Decomposition Pathway: Deciphering Pre‐Nucleation Processes for Metallic Cu Nanoparticles Synthesis

open access: yesChemistry – A European Journal, EarlyView.
Computational study reveals a two‐step decomposition of alkylcopper complexes into (partially) reduced Cu clusters, proposed as prenucleation species for Cu(0) nanoparticle synthesis. Cu‐hydride intermediates and multinuclear centers lower reaction barriers.
Marina Descoubes, Hélène Gérard
wiley   +1 more source

Phosphonomethyl (Thio)Phosphonamidite Reagents for the Construction of Phosphonylmethyl Phosphono(Di)Thioate Mono‐ and Diesters

open access: yesChemistry – A European Journal, EarlyView.
A set of new phosphonomethyl (thio)phosphonamidite reagents is introduced to generate unprecedented pyrophosphate mimetics. The versatile P(III)‐P(V) reagents allow for the construction of various pyrophosphate isosteres, and the applicability of the chemistry is illustrated in the assembly of a diverse set of stabilized CDP‐glycerol and CDP‐ribitol ...
Pascal Balić   +4 more
wiley   +1 more source

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