Results 81 to 90 of about 49,147 (254)
T‐Shaped Stibenium(III) Cation: Hydrostibination Without Sb─H Bond
Angewandte Chemie, EarlyView.A cationic, structurally constrained stibenium platform mediates anti‐Markovnikov hydrostibination of alkenes via element–ligand cooperativity (ELC), thereby bypassing the need for weak Sb─H bonds. ABSTRACT The hydrostibination of alkenes represents a largely underdeveloped transformation, owing to the intrinsic lability of the required Sb─H reagents ...
Ekta Nag +4 more
wiley +2 more sources
Borylcyclopropanes: Synthetic Strategies and Applications
Angewandte Chemie, EarlyView.Borylcyclopropanes (cyclopropanes bearing a boron substituent) sit at the intersection of two privileged frameworks in synthesis. This review provides the first exhaustive survey of their chemistry, spanning metal–carbene, nucleophilic cyclization, radical, hydroboration, and C─H activation routes, and documenting applications in medicinal chemistry ...
Aiza A. Butt, Joseph M. Ready
wiley +2 more sources
Thermal/Mechanical Measurement and Modeling of Bicycle Disc Brakes
Proceedings, 2018 Brake induced heating has become more difficult to control as bicycle component mass has been reduced. High-power braking with insufficient cooling or thermal capacitance can create excessive temperatures, boiling brake fluid, performance degradation ...
Ioan Feier, Robin Redfield
doaj +1 more source
Angewandte Chemie, EarlyView.A metal‐ and oxidant‐free electrochemical multicomponent di‐functionalization strategy that rapidly converts 1,1‐disubstituted alkenes into α‐tertiary primary amines with simultaneous installation of bio‐relevant sulfur or selenium motifs was devised for late‐stage functionalization. ABSTRACT Quaternary carbon centers, especially those bearing nitrogen,
Adrija Ghosh +4 more
wiley +2 more sources
Urban Cycling as an Indicator of Socio-Economic Innovation and Sustainable Transport
Quaestiones Geographicae, 2018 Environmental pollution in cities is an increasingly popular issue tackled in research. One of the elements with a significant impact on the state of urban ecosystems is transport with its pressure on individual components of the environment. Sustainable
Kwiatkowski Michał Adam
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Elite performance in para-cycling: A scoping review
European Journal of Adapted Physical ActivityElite para-cycling needs an overview of relevant and valid research to better understand and improve performance and to develop the sport, using evidence-based decision making.
Albert Smit +5 more
doaj +1 more source
فصلنامه دانشگاه علوم پزشکی جهرم, 2018 Introduction: The Accident is an event that causes damage to be detected. Increasing in traffic accidents threaten the community health promotion. Physical, financial and psychological disadvantages of accident are essential to invest a public health ...
fajrieh Zahedinia +4 more
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