Results 111 to 120 of about 72,904 (250)
Angewandte Chemie, EarlyView.This minireview highlights recent advances in catalyst development and mechanistic strategies that enable photochemical and photocatalytic reactivity under 700–1000 nm NIR light, emphasizing how long‐wavelength excitation expands opportunities in both synthetic chemistry and biology.
Santosh K. Pagire +3 more
wiley +2 more sources
Continual reproduction of self-assembling oligotriazole peptide nanomaterials. [PDF]
, 2017 Autocatalytic chemical reactions, whereby a molecule is able to catalyze its own formation from a set of precursors, mimic nature's ability to generate identical copies of relevant biomolecules, and are thought to have been crucial for the origin of life.
Brea, Roberto J, Devaraj, Neal K
core +2 more sources
Depolymerization and Reuse of Polycarbonates: Emerging Classes, Mechanisms and Challenges
Angewandte Chemie, EarlyView.This review collects the latest developments in the area of chemical and catalytic polycarbonate recycling strategies and includes the controlled degradation of similar types of macromolecules. Apart from the main strategies for deconstruction, the key mechanistic features of these depolymerization processes are also discussed together with the ...
Davide Rigo +4 more
wiley +2 more sources
Scientific Reports, 2017 Density functional M11 was used to study the mechanism and enantioselectivity of a binaphthophosphepine-catalyzed intramolecular [3 + 2] cycloaddition reaction.
Meng Duan +6 more
doaj +1 more source
Bis(silylene)‐Mediated N═N Bond Scission of Diazo Compounds
Angewandte Chemie, EarlyView.The carborane‐based bis(silylene) enables unprecedented N═N bond scission in diazodiarylmethanes. While xanthene‐ and aniline‐based scaffolds promote end‐on addition with partial N═N activation, the carborane‐based variant uniquely achieves complete N═N bond scission of Ar2C═N═N compounds, resulting in isolable disilicon nitride imino species.
Yun Xiong, Shenglai Yao, Matthias Driess
wiley +2 more sources
Angewandte Chemie, EarlyView.It may seem counterintuitive to first target a ruthenium alkylidyne when Grubbs‐type ruthenium carbene complexes are the actual goal. In the end, however, this tactic pays valuable dividends in terms of practicality, atom economy, flexibility as well as safety: the new route provides ready access to a large assortment of catalysts for alkene metathesis
Mingxu Cui, Alois Fürstner
wiley +2 more sources
Chemistry Journal of Moldova: General, Industrial and Ecological Chemistry, 2018 The present work provides an insight into the effect of the nature of surfactant (cationic, anionic), a component of water- and oil-borne microemulsions, on the reaction rate of 1,3-dipolar cycloaddition of C,N-diphenylnitrone with acrylonitrile.
Kahina Hamza +5 more
doaj +1 more source
The Search for an Epoxide Precursor in Trimethylenemethane (TMM) Cycloaddition Reactions [PDF]
, 2012 Trimethylenemethane (TMM) cycloaddition is a Pd(0)-catalyzed process in which new carbon rings are formed, which can be potentially useful in synthetic organic processes.
Miko, Christopher
core +2 more sources
Angewandte Chemie, EarlyView.Rh‐catalyzed chemodivergent parallel kinetic resolution of racemic 1,6‐enynes with α‐fluoroacrylamides or mixtures of different acrylamides proceeded via [2+2+2] cycloaddition and C–H alkylation to afford structurally and stereochemically distinct products with high selectivity under mild conditions.
Shintaro Hamada +5 more
wiley +2 more sources
Thiourea-catalyzed Diels–Alder reaction of a naphthoquinone monoketal dienophile
Beilstein Journal of Organic Chemistry, 2013 A variety of organocatalysts were screened for the catalysis of the naphthoquinone monoketal Diels–Alder reaction. In this study we found that Schreiner's thiourea catalyst 10 and Jacobson's thiourea catalyst 12 facilitate the cycloaddition of the ...
Carsten S. Kramer, Stefan Bräse
doaj +1 more source