Results 331 to 340 of about 538,570 (408)

Discovery and Biosynthesis of Celluxanthenes, Antibacterial Arylpolyene Alkaloids From Diverse Cellulose‐Degrading Anaerobic Bacteria

open access: yesAngewandte Chemie, EarlyView.
The structure and biosynthetic origin of the enigmatic “yellow affinity substance” (YAS) from the anaerobe thermophile Clostridium thermocellum (now: Acetivibrio thermocellus) were elucidated. YAS is a complex of unusual antibacterial arylpolyene alkaloids (celluxanthenes) that are produced by various cellulolytic anaerobes.
Keishi Ishida   +9 more
wiley   +1 more source

Bayesian Meta‐Learning for Few‐Shot Reaction Outcome Prediction of Asymmetric Hydrogenation of Olefins

open access: yesAngewandte Chemie, EarlyView.
A Bayesian meta‐learning framework is proposed for reaction outcome prediction in low‐data settings. It utilizes a literature‐mined dataset on asymmetric hydrogenation of olefins to build a pre‐trained model. This meta‐model is shown to return better predictions as compared to single‐tasks methods, such as random forest and graph neural networks, given
Sukriti Singh   +1 more
wiley   +1 more source

Organocatalytic Asymmetric Synthesis of Azabicyclo[2.1.1]hexanes. [PDF]

open access: yesACS Catal
Alama L   +4 more
europepmc   +1 more source

Nitrate Reduction for Deaminative Suzuki–Miyaura Coupling of Anilines

open access: yesAngewandte Chemie, EarlyView.
We present a one‐step deaminative Suzuki–Miyaura‐type coupling of anilines via fleeting diazonium intermediate with nitrate and bisulfite as the reagents. This represents the first application of the nitrate reduction strategy in transition metal catalysis of diazonium chemistry.
Chen‐Chen Li   +6 more
wiley   +1 more source

N,N- and N,O-Bidentate-Chelation-Assisted Alkenyl C-H Functionalization. [PDF]

open access: yesMolecules
Zhang Y   +6 more
europepmc   +1 more source

Titan‐vermittelte Umlagerung von Bis(alkinyl)boranen: B–C‐Aktivierung vs. C–H‐Aktivierung

open access: yesAngewandte Chemie, EarlyView.
Bis(alkinyl)borane mit verschiedenen B‐Substituenten reagierten mit Cp*2Ti(Me3SiCCSiMe3), was zur Bildung von B–C‐Aktivierungsprodukten (oben rechts) bzw. C–H‐Aktivierungsprodukten (unten rechts) führte. Kurzzusammenfassung Es wurden Reaktionen zwischen Rosenthal‐Titanocen‐ (Cp2Ti) und Decamethyltitanocen‐ (Cp*2Ti) Synthonen mit verschiedenen Bis ...
Chenchang Ma   +5 more
wiley   +1 more source

Direct vicinal sulfonyloximation of alkenes: an efficient and straightforward approach towards the synthesis of α-sulfonyl ketoximes. [PDF]

open access: yesRSC Adv
Hossaini Z   +8 more
europepmc   +1 more source

Ein Zweidimensionales Poly(arylen‐vinylene) vom Donor‐Akzeptor‐Typ für Effizienten Elektronentransport und Empfindliche Chemiresistoren

open access: yesAngewandte Chemie, EarlyView.
Ein zweidimensionales Poly(Arylenvinylene) vom Donor‐Akzeptor‐Typ wurde entwickelt, das eine schmale optische Bandlücke und einen einzigartigen, elektronen‐dominierten Ladungstransport mit hoher Ladungsträgermobilität für ultrasensitive Chemiresistoren aufweist.
Ruyan Zhao   +16 more
wiley   +1 more source

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