Results 131 to 140 of about 178,400 (304)
Radical‐Polar Crossover Bicyclization Enables a Modular Synthesis of Saturated Bicyclic Amines
Advanced Science, EarlyView.Herein, we report the successful realization of a radical‐polar crossover bicyclization reaction from easily available cyclopropylamines and substituted alkenes through photoredox catalysis. This approach introduces an innovative methodology for the de novo synthesis of a diverse collection of 4/5‐, 5/5‐, 6/5‐,7/5‐ and 5/6‐fused saturated bicyclic ...
Dewei Feng +4 more
wiley +1 more source
In-situ EPR Studies of Reaction Pathways in Titania Photocatalyst-Promoted Alkylation of Alkenes [PDF]
, 2015 Acknowledgments This work was supported by Engineering and Physical Sciences Research Council (EPSRC) Grant EP/I00372X/1. The EPR spectrometer was purchased under EPSRC Grant EP/F032560/1.
Howe, Russell F., Rhydderch, Shona
core +2 more sources
Advanced Science, EarlyView.The study develops a H•/H– transfer strategy enabling efficient hydrocyclization/defluorination of CF3‐acrylamides to synthesize Seletracetam derivatives with gem‐difluoroalkenes. Mechanistic studies reveal distinct pathways: the NiII‐H/PhSiH3 system operates through a hydrogen atom transfer process, while the 1,4‐Michael addition of H– appears to be ...
Yanjun Wan, Ronghui Shao, Jack R. Norton
wiley +1 more source
Benzylation of N-phenyl-2-phenylacetamide under microwave irradiation [PDF]
Journal of the Serbian Chemical Society, 2008 N-Phenyl-2-phenylacetamide was alkylated with benzyl chloride in the presence of powdered potassium hydroxide under microwave irradiation in a solvent-free system. The reactions were also performed in the presence of phase-transfer catalysts.
DUSAN Z. MIJIN +2 more
doaj
Structure and Phase Transitions of Alkyl Chains on Mica [PDF]
J. Am. Chem. Soc. 2003, 125, 9500-9510, 2003 We use molecular dynamics as a tool to understand the structure and phase transitions [Osman et. al. J. Phys. Chem. B 2000, 104, 4433; 2002, 106, 653] in alkylammonium micas. The consistent force field 91 is extended for accurate simulation of mica and related minerals.
arxiv
Sodium Hydroxide in Alcohol as a Base for the Alkylation of Ethyl Acetoacetate. [PDF]
, 1959 Arne Brändström +5 more
openalex +1 more source
Advanced Science, EarlyView.This work unravels a novel function of CD103+ T cells in eradicating oxidative‐stressed somatic cells to prevent lung tumorigenesis and identifies specific CD103+ T cell‐decline as a key feature in the aged lung. This comprehensive study highlights the contribution of immuno‐dysregulation to the high incidence of aging‐associated lung cancers ...
Yu Xu +7 more
wiley +1 more source
Journal of Pharmaceutical AnalysisActivation of nuclear factor erythroid 2-related factor 2 (Nrf2) by Kelch-like ECH-associated protein 1 (Keap1) alkylation plays a central role in anti-inflammatory therapy.
Ke-Gang Linghu +12 more
doaj
Effect of the alkyl chain length of the alcohols on the nematic uniaxial-to-biaxial phase transitions in the potassium laurate/alcohol/K2SO4/water lyotropic mixture [PDF]
arXiv, 2012 Lyotropic liquid crystalline quaternary mixtures of potassium laurate (KL), potassium sulphate (K2SO4)/alcohol (n-OH)/water, with the alcohols having different number of carbon atoms in the alkyl chain (n), from 1 octanol to 1-hexadecanol, were investigated by optical techniques (optical microscopy and laser conoscopy). The biaxial nematic phase domain
arxiv