Results 131 to 140 of about 13,617,516 (263)

Sustainable Hydrogen Production by Glycerol and Monosaccharides Catalytic Acceptorless Dehydrogenation (AD) in Homogeneous Phase

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
Sustainable hydrogen production can be obtained from hydogen‐rich biomass‐derived organic molecules through Acceptorless Dehydrogenation (AD) reactions. Glycerol and sugars are available in large quantities from industry and can be successfully used as substrates in AD protocols, in the presence of tailored, selective, easily tunable and thermally ...
Sylwia Kostera, Luca Gonsalvi
wiley   +1 more source

Learning Strategies from Nature's Blueprint to Cyclic Carbonate Synthesis

open access: yesChemSusChem, Volume 18, Issue 6, March 15, 2025.
The development of sustainable synthetic methods for cyclic carbonates draws inspiration from nature, focusing on eco‐friendly processes and renewable resources like CO2 and biomass. This review explore various CO2 activation mechanisms, green chemistry principles, and green catalysts.
Erika Saccullo   +4 more
wiley   +1 more source

Molecular Modification Strategies for CO2 Electroreduction to C2+ Products: Classifications, Mechanisms, Advances, and Perspectives

open access: yesEcoEnergy, EarlyView.
This review comprehensively outlines molecular modification strategies for steering CO2 electroreduction toward C2+ products, including the classification of diverse molecular structures, elucidation of their roles in microenvironment regulation, dissection of C–C coupling pathway engineering, and forward‐looking perspectives on machine learning and ...
Lingling Peng, Hanwen Liu, Tianyou Peng
wiley   +1 more source

Synthetic Strategies for the Construction of Cyclobutane‐Fused Heterocycles

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Cyclobutane‐fused heterocycles are important motifs commonly present in bioactive compounds, recognized for their rigid 3D structures that confer unique properties. However, synthesizing these compounds remains challenging. This review discusses current methods for their synthesis, such as photochemical, metal‐catalyzed, and Lewis acid‐mediated [2 + 2]
Michela Vargiu   +2 more
wiley   +1 more source

The Expanding Role of Diazirines in Synthetic Methodology

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Beyond their established role in photoaffinity labeling, diazirines have emerged as versatile reagents in synthetic chemistry. This review highlights their dual reactivity as carbene and nitrogen‐transfer precursors, showcasing mechanistic insights and diverse applications in cyclopropanations, cycloadditions, skeletal editing, amination, heterocycle ...
Viktor Savic   +3 more
wiley   +1 more source

Selective N‐Functionalization of Pyrazoles

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
This review traces the evolution of regioselective N‐functionalization strategies for pyrazoles, a key class of nitrogen heterocycles widely used in medicinal chemistry. Due to rapid tautomerism, N‐functionalization often lacks selectivity, leading to poor and unpredictable regioisomeric outcomes.
Lucas Popek   +2 more
wiley   +1 more source

Practical One‐Pot Synthesis of Cyclic Conjugated Amides From Ketones

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
Cyclic conjugated amides from simple ketones: a one‐pot bromoform‐mediated homologation/amidation sequence provides direct access to 20 conjugated amides, including functionalized and linear examples, in up to 91% yield. Conjugated amides are valuable building blocks in organic synthesis; however, general access to cyclic conjugated amides remains ...
Maximilian Voigtländer   +1 more
wiley   +1 more source

Triazenyl and Azido Compounds Stabilized by N-Heterocyclic Carbenes

open access: yes, 2020
Doctor첫 번째 파트에서는 질소 헤테로 고리 카빈에 대한 간략적인 설명과 예시를 서술하였고 이어지는 파트에서는 질소 헤테로 고리 카빈에 의해 안정화된 트리아지닐 라디칼의 합성과 심도 있는 분석 및 응용에 대해 서술하였다. 마지막 파트에서는, 질소 헤테로 고리 카빈 아지도 양이온을 사용하여 다양한 전자 제공 물질들과 반응시켜 전기 화학적으로 활성을 가지는 트리아지닐 양이온의 합성과 이의 응용에 대해 작성하였다.In the first part ...
백지수
core  

University teaching of mass spectrometry as a key practical technique within the context of a fully integrated, spiral curriculum

open access: yesRapid Communications in Mass Spectrometry, EarlyView.
Rationale Mass spectrometry (MS) is introduced to high school students in the UK in many pre‐university course syllabi. As such, we have identified the use of MS as a key technique that should be taught practically to undergraduates from the outset of their studies.
Andrew F. Worrall   +3 more
wiley   +1 more source

Ultra-Thin and Highly Insulating Aromatic Monolayers by N-Heterocyclic Carbenes. [PDF]

open access: yesAngew Chem Int Ed Engl
Wróbel M   +6 more
europepmc   +1 more source

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