Alkylation of 2,4-(1H,3H)-Quinazolinediones with Dialkyl Carbonates Under Microwave Irradiations
Molecules, 2009 Alkylation is a very important chemical reaction which modifies the biological properties of drugs. Quinazolinedione derivatives are of considerable interest due to their wide array of pharmacological properties.We now report application of a practical ...
Martha Cecilia Meza +4 more
doaj +1 more source
Room-Temperature, Base-Mediated Selective Synthesis of 2-(Arylamino)ethanols and 2-Aryloxyethanols
SynOpen, 2019 A simple and efficient protocol for base-mediated selective synthesis of 2-(arylamino)ethanols from primary aromatic amines and 2-aryloxyethanols from phenols, promoted by K2CO3 has been achieved under mild conditions.
Rahul B. Sonawane +3 more
doaj +1 more source
Modelling structure and ionic diffusion in a class of ionic liquid crystal-based solid electrolytes [PDF]
, 2023 Next-generation high-efficiency Li-ion batteries require an electrolyte that is both safe and thermally stable. A possible choice for high performance all-solid-state Li-ion batteries is a liquid crystal, which possesses properties in-between crystalline solids and isotropic liquids.
arxiv +1 more source
Tertiary Alcohols as Radical Precursors for the Introduction of Tertiary Substituents into Heteroarenes [PDF]
, 2019 Despite many recent advances in the radical alkylation of electron-deficient heteroarenes since the seminal reports by Minisci and co-workers, methods for the direct incorporation of tertiary alkyl substituents into nitrogen heteroarenes are limited ...
Fishman, DA +3 more
core +2 more sources
Surface Dipoles and Work Functions of Alkylthiolates and Fluorinated Alkylthiolates on Au(111) [PDF]
J. Phys. Chem. B 2006, 110, 22628-22634, 2006 We study the dipole formation at the surface formed by -CH3 and -CF3 terminated shortchain alkyl-thiolate monolayers on Au(111). In particular, we monitor the change in work function upon chemisorption using density functional theory calculations. We separate the surface dipole into two contributions, resulting from the gold-adsorbate interaction and ...
arxiv +1 more source
Poly(thioether) vitrimers via transalkylation of trialkylsulfonium salts [PDF]
, 2017 Vitrimers are permanently cross-linked organic polymers that can be reshaped, molded, and recycled without loss of network integrity. Herein, we report poly(thioether) networks, prepared through a straightforward thiol-ene photopolymerization, that can ...
Du Prez, Filip +3 more
core +2 more sources
Efficient and selective N-alkylation of amines with alcohols catalysed by manganese pincer complexes
Nature Communications, 2016 Borrowing hydrogen (or hydrogen autotransfer) reactions represent straightforward and sustainable C–N bond-forming processes. In general, precious metal-based catalysts are employed for this effective transformation.
Saravanakumar Elangovan +5 more
semanticscholar +1 more source
New S-alkylated 1,2,4-triazoles incorporating diphenyl sulfone moieties with potential antibacterial activity [PDF]
Journal of the Serbian Chemical Society, 2009 Alkylation of the 5-{4-[(4-bromophenyl)sulfonyl]phenyl}-4-(3/4-methylphenyl)- 2,4-dihydro-3H-1,2,4-triazole-3-thiones 3a,b with various alkylation agents, i.e., ethyl bromide, phenacyl bromide and ethyl chloroacetate, afforded the S-substituted 1,2,4 ...
Barbuceanu Stefania F. +5 more
doaj +1 more source
How do electronic carriers cross Si-bound alkyl monolayers? [PDF]
, 2005 Electron transport through Si-C bound alkyl chains, sandwiched between n-Si and Hg, is characterized by two distinct types of barriers, each dominating in a different voltage range. At low voltage, current depends strongly on temperature but not on molecular length, suggesting transport by thermionic emission over a barrier in the Si. At higher voltage,
arxiv +1 more source
Tunneling transport in devices with semiconducting leads [PDF]
Phys. Rev. B 81, 085307 (2010), 2009 This paper extends the modern theory of tunneling transport to finite temperatures. The extension enables applications to molecular electronic devices connected to semiconducting leads. The paper presents an application of the theory to molecular devices made of alkyl chains connected to silicon nano-wires, mapping their transport characteristics as ...
arxiv +1 more source