Results 81 to 90 of about 3,857 (276)

Chelation Control in the [3 + 3] Annulation Reaction of Alkoxy-Substituted 1,1-Diacylcyclopropanes with 1,3-Bis(trimethylsilyloxy)-1,3-butadienes. Diversity-Oriented Synthesis of Isochromanes

open access: yes, 2016
Functionalized arenes were prepared by chelation-controlled [3 + 3] cyclization/cyclopropane opening reactions of 1-trimethylsilyloxy-1,3-butadienes with benzyloxy- or methoxy-substituted 1,1-diacylcyclopropanes.
Jennifer Hefner (2320834)   +4 more
core   +1 more source

Micro‐ and nanoplastics in gastrointestinal disorders: Mapping the translational gap between exposure, biomonitoring, and pathogenic mechanisms

open access: yesBMEMat, EarlyView.
This review highlights critical “translational gaps” in understanding micro‐ and nanoplastics impacts on gastrointestinal diseases, bridging exposure, detecting, and mechanistic toxicology. Abstract Micro‐ and nanoplastics (MNPs) have become pervasive environmental contaminants with increasing evidence linking them to adverse health outcomes.
Zhenli Diao   +3 more
wiley   +1 more source

Cluster Analysis of Circular Economy and Industrial Symbiosis Practices and Their Impact on Sustainability Performance in the Plastics Industry

open access: yesBusiness Strategy and the Environment, EarlyView.
ABSTRACT This study examines how plastics manufacturing firms can be classified according to their level of implementation of circular economy (CE) and industrial symbiosis (IS) practices and how such adoption influences sustainability performance. Using data from plastics manufacturing firms, we integrate cluster analysis with partial least squares ...
Laura Cristina Ramírez‐Rodríguez   +3 more
wiley   +1 more source

Sequential Cross-Coupling of 1,4-Bissilylbutadienes:  Synthesis of Unsymmetrical 1,4-Disubstituted 1,3-Butadienes

open access: yes, 2016
A mild and general and stereospecific cross-coupling reaction of unsymmetrical 1,4-bissilyl-1,3-butadienes has been accomplished. By the use of either a benzyldimethylsilyl or 2-thienyldimethylsilyl unit at one end of the dienylsilanol, a selective cross-
Steven A. Tymonko (1508392)   +1 more
core   +1 more source

Infinite Functional Versatility, Formidable Limits: Evaluating Gallium‐Based Liquid Metals in Rechargeable Batteries

open access: yesCarbon Energy, EarlyView.
Beyond the hype surrounding the self‐healing properties of gallium‐based liquid metals (Ga‐LMs), this perspective critically examines their functional roles in metal‐ion batteries, highlighting both their underlying merits and the often‐overlooked challenges, including non‐representative design and testing configurations, performance overestimations ...
Turly P. P. Sumanasekara   +7 more
wiley   +1 more source

ALD Derived Li2O Layer Stabilizing Solid Electrolyte Interphase of Silicon/Carbon Anodes for Lithium Storage

open access: yesCarbon Energy, EarlyView.
A durable solid electrolyte interphase (SEI) is essential for mitigating the mechanical fracture and interfacial instability of silicon anodes under strong electrochemical‐mechanical coupling. Herein, a uniform Li2O layer was accurately deposited on the Si/C composites to regulate the growth characteristics of SEI.
Ming Li   +17 more
wiley   +1 more source

Bieten KI‐basierte Surrogatmodelle einen Mehrwert für die Prozessoptimierung? — Untersuchungen zu praktischen Anwendungsbeispielen im C4‐Verbund Can AI‐based surrogate models offer added value for process optimization? — Investigations into practical application examples in the C4‐Verbund

open access: yesChemie Ingenieur Technik, EarlyView.
KI‐basierte Surrogatmodelle ermöglichen die Echtzeitoptimierung chemischer Prozesse durch die präzise Abbildung komplexer Zusammenhänge bei reduzierter Rechenzeit. Anhand zweier industrieller Anwendungsfälle aus der C4‐Chemie wird das Potenzial modellbasierter Optimierung systematisch demonstriert.
Bastian Bruns   +4 more
wiley   +1 more source

Carbon-phosphorus bond formation and transformation in the reaction of 1,2-diaza-1,3-butadienes with alkyl phenylphosphonites

open access: yes, 2008
The reaction of 1,2-diaza-1,3-butadienes with dialkyl phenylphosphonites under solvent-free conditions proceeds via zwitterionic intermediate and gives, by precipitation, the stable ylidic a-phosphanylidenehydrazones that, in turn, can be transformed ...
G. BACCOLINI   +11 more
core   +1 more source

Catalytic Oxidation of CO and VOC in Flue Gas of Coffee Roasting Machines

open access: yesChemie Ingenieur Technik, EarlyView.
Platinum‐coated cordierite monoliths effectively oxidized CO and VOC in coffee roasting exhaust with higher Pt loadings lowering light‐off temperatures. Scaled up 90 g/ft3 catalyst in a 5 kg roaster achieved 96% CO and around 78% VOC conversion at 350°C, highlighting stable operation requires flue gas temperatures ≥350°C.
Till Hauswald   +3 more
wiley   +1 more source

Formation of Cyclopenta[c]pyridine Derivatives from 2,5-Disubstituted Pyrroles and 1,4-Dibromo-1,3-butadienes via Pyrrole-Ring One-Carbon Expansion

open access: yes, 2016
Reactions between 1,4-dibromo-1,3-butadienes and 2,5-disubstituted pyrroles afforded cyclopenta­[c]­pyridine derivatives in high yield, catalyzed by palladium and a cyclopentadiene-phosphine ligand (L1). Insertion of one terminal carbon of the butadienyl
Zhenfeng Xi (1438816)   +6 more
core   +1 more source

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