Results 131 to 140 of about 38,397 (294)

Photochemical Conversion of Indazoles into Benzimidazoles

open access: yesAngewandte Chemie International Edition, EarlyView.
We present a photochemical strategy for transforming 1H‐ and 2H‐indazoles into benzimidazoles, enabling heteroaromatic interconversion under mild conditions. This approach, grounded in a two‐step mechanism of excited‐state tautomerization and photochemical rearrangement, offers broad scope, high yields, and functional group tolerance, expanding the ...
Thiago dos Santos   +5 more
wiley   +1 more source

Marcas de fabricante, marcas de consumidor

open access: yes, 2000
Frente al cliente en una gran superficie aparecen dos tipos de marca para la misma categoría de productos alimenticios: las marcas de fabricante y las marcas de distribuidor. En el artículo se han analizado estas dos categorías de marcas tratando de responder a las siguientes cuestiones: ¿cómo reacciona el consumidor frente a las diferentes marcas ...
openaire   +1 more source

Interfacing B‐DNA and DNA Mimic Foldamers

open access: yesAngewandte Chemie International Edition, EarlyView.
Helical aromatic oligoamide DNA mimic foldamers that reproduce the shape and charge distribution of duplex B‐DNA have been interfaced with DNA duplexes by means of a new linker that serves both as a DNA hairpin and as an aromatic oligoamide unit. In the resulting chimeric molecules, the linker does not perturb the DNA duplex structure and converts the ...
Manuel Loos   +10 more
wiley   +1 more source

Inter‐microscope comparability of dental microwear texture data obtained from different optical profilometers: Part II Deriving instrument‐specific correction equations for meta‐analyses using published data

open access: yesThe Anatomical Record, EarlyView.
Abstract Dental microwear texture analysis (DMTA) has emerged as a valuable method for investigating the feeding ecology of vertebrates. Over the past decade, three‐dimensional topographic data from microscopic regions of tooth surfaces have been collected, and surface texture parameters have been published for both extant and fossil species.
Mugino O. Kubo   +4 more
wiley   +1 more source

Decoupling Silicon and Graphite Contribution in High‐Silicon Content Composite Electrodes

open access: yesBatteries &Supercaps, EarlyView.
The decoupled blend cell setup enabled to assess that even a small mass fraction of silicon in a Si/Gr composite negative electrode can increase significantly the stress (effective C‐rate) of graphite. This effect should be considered if composites with large amounts of silicon are to be developed commercially.
Dimitrios Chatzogiannakis   +5 more
wiley   +1 more source

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