Results 151 to 160 of about 96,389 (286)

Aldehyde–Olefin Couplings by Photoinduced Reduction of Electron‐Deficient Olefins with Hantzsch Ester Anions

Angewandte Chemie, EarlyView.
Single‐electron transfer‐mediated reductive carbonyl–olefin couplings are valuable carbon–carbon bond forming reactions. However, limitations persist for couplings of aliphatic aldehydes with electron‐deficient olefins. Here, we report a simple, photocatalyst‐free protocol that overcomes these limitations by using a Hantzsch ester anion as a ...
Zhihang Li, Adam Noble
wiley   +1 more source

Carbonylative Synthesis of β-Trifluoromethylated Heterocyclic Ketones through 1,2-Trifluoromethylation and Minisci Carbonylation of Alkenes. [PDF]

Org Lett
Miao RG, A RH, Wu XF.
europepmc   +1 more source

Anti-Markovnikov alkene oxidation by metal-oxo–mediated enzyme catalysis

Science, 2017
S. Hammer, Grzegorz Kubik, Ella Watkins, Sha-Hua Huang, Hannah Minges, F. Arnold   +5 more
semanticscholar   +1 more source

Aziridinierung eines einzelnen Kohlenstoffatoms in Alkenen mittels Energietransferkatalyse

Angewandte Chemie, EarlyView.
Im Gegensatz zur traditionellen Alken‐Aziridinierung über (formalen) Nitren‐Transfer berichten wir hier über eine Strategie zur intermolekularen Aziridinierung eines einzelnen Alken‐Kohlenstoffatoms bei zusätzlicher Funktionalisierung der anderen Position. Durch Energietransfer‐ (EnT‐)Katalyse werden Alkenylboronate und ‐silane in reaktive Intermediate
Fritz Paulus, Corinna Heusel, Felix H. Wessels, Bünyamin Sikora, Maik G. Niedziella, Kilian van der Beck, Constantin G. Daniliuc, Frank Glorius   +7 more
wiley   +1 more source

Enriching Alkene <i>syn</i>-Dihalogenation: Aryl Alkene, Bromine, Regio-Reversion, and Stereoconvergency. [PDF]

Org Lett
Moon H, Hong J, Chung WJ.
europepmc   +1 more source

The Synthesis of Tertiary Alkylamines from Alkyl-Substituted Alkenes Using Amine Umpolung Strategy. [PDF]

J Am Chem Soc
Nakatsuka S, Kinoshita T, Sakakibara Y, Murakami K.   +3 more
europepmc   +1 more source

Sterisch überfrachtete Alken‐Photo‐Redox‐Schalter auf Basis von Chinolinium/Carben Bausteinen

Angewandte Chemie, EarlyView.
Eine modulare Synthese einer neuen Klasse von Photo‐ und Redox‐Schaltern wird beschrieben, die auf der Kombination von Chinoliniumsalzen und Carbenen basiert. Das photochemische Schalten ermöglicht einen selektiven Wechsel zwischen gefalteten E/Z‐Isomeren, während das elektrochemische Schalten den Wechsel zwischen neutralen, radikalkationischen und ...
Chris Burdenski, Patrick W. Antoni, Marcel E. Baumert, Leonie Ziemann, Samaresh C. Sau, Julian J. Holstein, Maria Castro, Nitin Kumar, Ofer Filiba, Igor Schapiro, Max M. Hansmann   +10 more
wiley   +1 more source

Overriding the radical polarity matching principle: selective chlorohydroxylation of electron-deficient alkenes enabled by Ce photocatalysis. [PDF]

Chem Sci
Ou L, Bai Y, Liu S, Kan Z, Lan Y, Zhu J, Liu S, Ren Z, Li SJ, Niu L.   +9 more
europepmc   +1 more source

Phosphoryl Radicals from Trivalent Iminyl Phosphines: A Photocatalytic Approach to N‐Phosphoryl Azetidines

Angewandte Chemie, EarlyView.
Photochemically generated phosphoryl radicals from iminyl phosphines enable strain‐release addition to azabicyclobutanes, providing access to elusive N‐phosphoryl azetidines. Combined experimental, computational, and EPR studies reveal an unconventional water‐assisted photoredox pathway.
Chandu G. Krishnan, Gabriel Cormier, Stefano A. Serapian, Marco Bortolus, Luca Dell'Amico   +4 more
wiley   +1 more source

General Difluoroalkylation of Unactivated Alkenes Via Allylic Mizoroki-Heck Coupling. [PDF]

JACS Au
Wang J, You Z, Bian T, Mao H, Zhou L, Zhang Z.   +5 more
europepmc   +1 more source