Results 21 to 30 of about 266,703 (299)
A Review on the Catalytic Acetalization of Bio-renewable Glycerol to Fuel Additives
Frontiers in Chemistry, 2018 The last 20 years have seen an unprecedented breakthrough in the biodiesel industry worldwide leads to abundance of glycerol. Therefore, the economic utilization of glycerol to various value-added chemicals is vital for the sustainability of the ...
Amin Talebian-Kiakalaieh +4 more
doaj +1 more source
e-Polymers, 2007 Abstract Poly(oxy-1,4-phenylene carbonyl-1,4-phenylene oxy-1,4-phenylene carbonyl-2,6-naphthalene carbonyl-1,4-phenylene) or 2,6-PEKEKNK is a polymer of the poly(aryl ether ketone) family differing from PEKEKK by the presence of a naphthyl group linked at positions 2 and 6 to the two ketone groups.
Dosière, Marcel +3 more
openaire +1 more source
O- vs. N-protonation of 1-dimethylaminonaphthalene-8-ketones: formation of a peri N–C bond or a hydrogen bond to the pi-electron density of a carbonyl group [PDF]
, 2014 X-ray crystallography and solid-state NMR measurements show that protonation of a series of 1-dimethylaminonaphthalene-8-ketones leads either to O protonation with formation of a long N–C bond (1.637–1.669 Å) between peri groups, or to N protonation and ...
Allen +39 more
core +2 more sources
Synthesis of some novel hydrazono acyclic nucleoside analogues
Beilstein Journal of Organic Chemistry, 2010 The syntheses of novel hydrazono acyclic nucleosides similar to miconazole scaffolds are described. In this series of acyclic nucleosides, pyrimidine as well as purine and other azole derivatives replaced the imidazole function in miconazole and the ...
Mohammad N. Soltani Rad +2 more
doaj +1 more source
A Facile One-Pot Process for the Formation of Hindered Tertiary Amines
Molecules, 2012 A simple and convenient method was developed for the preparation of hindered tertiary amines via direct reductive amination of ketones with secondary aryl amines, using trichlorosilane as reducing agent and tetramethylethylenediamine (TMEDA) as organic ...
Jian Sun +4 more
doaj +1 more source
Indole diterpenoid natural products as the inspiration for new synthetic methods and strategies. [PDF]
, 2017 Indole terpenoids comprise a large class of natural products with diverse structural topologies and a broad range of biological activities. Accordingly, indole terpenoids have and continue to serve as attractive targets for chemical synthesis.
Corsello, Michael A +2 more
core +1 more source
PharmaceuticalsBackground/Objectives: Exogenous ketone supplements elevate circulating ketones without carbohydrate restriction, but their long-term hepatic safety remains unclear.
Csilla Ari, Dominic P. D’Agostino
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Ketone Hydrogenation with Iridium Complexes with “non N–H” Ligands: The Key Role of the Strong Base [PDF]
, 2015 Ferrocenyl phosphine thioether ligands (PS), not containing deprotonatable functions, efficiently support the iridium catalyzed ketone hydrogenation in combination with a strong base co-catalyst. Use of an internal base ([Ir(OMe)(COD)]2 in place of [IrCl(
Deydier, Eric +7 more
core +3 more sources
Mechanism of thermal decomposition of poly(ether ether ketone) (PEEK) from a review of decomposition studies [PDF]
, 2010 A review of the literature on the flammability and decomposition of poly(oxy-1,4-phenyleneoxy-1,4-phenylenecarbonyl-1,4-phenylene) (PEEK) is presented. This paper provides an overview of the flammability of PEEK and its decomposition mechanisms. Based on
Flath, Dianne +5 more
core +1 more source
Frontiers in Psychiatry, 2023 Ketogenic diets have a century-long history as a therapeutic tool to treat intractable epilepsy. Recently, a renewed interest in neuroketotherapeutics has arisen, with ketogenic diets being explored for the treatment of neurodegenerative diseases such as
Annette Bosworth +3 more
doaj +1 more source