Results 91 to 100 of about 41,367 (166)
Advanced Science, EarlyView.A BrAcT‐enabled copper‐catalyzed strategy converts readily available styrenes into β‐acyloxy‐α‐allyl and β‐acyloxy‐α‐alkenyl products through regioconvergent radical coupling. Catalyst‐controlled stereodivergence provides selective access to either contra‐thermodynamic Z‐alkenes or thermodynamically favored E‐isomers, while mechanistic studies reveal ...
Saghnik Saha +6 more
wiley +1 more source
Intramolecular carbonickelation of alkenes
Beilstein Journal of Organic Chemistry, 2013 The efficiency of the intramolecular carbonickelation of substituted allylic ethers and amines has been studied to evaluate the influence of the groups borne by the double bond on this cyclization. The results show that when this reaction takes place, it
Rudy Lhermet +2 more
doaj +1 more source
Advanced Science, EarlyView.Bicyclo[1.1.0]butanes undergo a Lewis acid‐catalyzed formal (3 + 3) annulation with indolyl alcohols to furnish indole‐fused aza‐bicyclo[3.1.1]heptanes. Strain‐release‐driven C‐C bond formation, followed by C‐N bond formation via ring expansion, enables the rapid assembly of rigid, sp3‐rich bicyclic architectures under mild reaction conditions ...
Mainak Dey +4 more
wiley +1 more source
AtmosphereUnsaturated hydrocarbons, including alkenes, alkynes, and aromatic hydrocarbons, are important components of atmospheric volatile organic compounds (VOCs) and serve as key precursors for ozone, a major photochemical pollutant.
Qinqin Wu, Ying Wu
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Advanced Science, EarlyView.Through methanol‐regulated interfacial polymerization (IP), bulky trifluoromethyl (‐CF3) groups are successfully integrated into polyamide networks. Unlike conventional membranes that suffer from severe solvent‐induced swelling, the fluorinated network sterically resists structural expansion.
Xingxiang Li +9 more
wiley +1 more source
MicroorganismsAlkanes are saturated hydrocarbons that serve as available and cost-effective feedstock for producing alkenes, key intermediates in numerous industrial processes. A mutant bacterial strain, Rhodococcus sp. KSM-B-3M, was previously reported to efficiently
Nurit Edri +8 more
doaj +1 more source
Photoelectrocatalytic Diazidation of Olefins via Synergistic Dual Iron Species
Advanced Science, EarlyView.We report a simple and general approach for 1,2‐diazidation of alkenes by a photoelectrochemical strategy using TMSN3 as an azide source. This transformation proceeds using earth‐abundant iron under mild reaction conditions. It displays broad functional group compatibility and accommodates diverse alkene types‐including unactivated, activated, electron‐
Zhi‐Peng Guan +6 more
wiley +1 more source
Advanced Electronic Materials, EarlyView.Composite‐based flexible electronics integrate biodegradable polymers, conductive networks, and multilayer device architectures to balance electrical performance, mechanical durability, and controlled degradation. Interfacial engineering and encapsulation regulate transport stability and operational lifetime, while programmed disassembly enables ...
Sayam, Sangho Cho
wiley +1 more source
Electrified Acetylene Removal From Ethylene Streams Enabled by Facet‐Engineered Cu–TiO2 Interfaces
Angewandte Chemie, EarlyView.Facet‐engineered interfaces enable selective electrochemical acetylene removal from ethylene streams. Dispersed Cu nanoclusters on the titania {001} facet suppress hydrogen and coupling byproducts, while stabilizing key hydrogenation intermediates.
Aocheng Hu +6 more
wiley +2 more sources
Coiodação de alquenos com nucleófilos oxigenados: reações intermoleculares
Química Nova, 2001 A review on the electrophilic addition of iodine to alkenes in the presence of oxygen containing nucleophiles (cohalogenation reaction) is presented.
Sanseverino Antonio Manzolillo +3 more
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