Results 41 to 50 of about 455,246 (392)

A selective transformation of enals into chiral γ-amino alcohols. [PDF]

open access: yes, 2013
A one-pot synthesis of chiral amino alcohols from α,β-unsaturated aldehydes is reported which circumvents competitive 1,2- versus 1,4-boryl addition, by means of using a sterically hindered amine-derived imine.
Batsanov, A. S.   +5 more
core   +1 more source

Analysis of food supplement with unusual raspberry ketone content [PDF]

open access: yes, 2016
In recent years food supplement market increased constantly, including slimming products and against obesity. The case of rasberry ketone (RK) is here reported.
Foddai, S.   +6 more
core   +1 more source

Synthesis of some novel hydrazono acyclic nucleoside analogues

open access: yesBeilstein 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

Ketone Supplementation: Meeting the Needs of the Brain in an Energy Crisis

open access: yesFrontiers in Nutrition, 2021
Diverse neurological disorders are associated with a deficit in brain energy metabolism, often characterized by acute or chronic glucose hypometabolism.
Angela M. Poff   +3 more
doaj   +1 more source

Synthesis and process optimization of electrospun PEEK-sulfonated nanofibers by response surface methodology [PDF]

open access: yes, 2015
In this study electrospun nanofibers of partially sulfonated polyether ether ketone have been produced as a preliminary step for a possible development of composite proton exchange membranes for fuel cells.
Boaretti, Carlo   +3 more
core   +2 more sources

The Role of Polyether Ether Ketone (Peek) in Dentistry – A Review

open access: yesJournal of Medicine and Life, 2019
This study is aimed to review the applications of Polyether Ether Ketone (PEEK) in dentistry. The increased demand for aesthetics, legislation in some developed countries, few drawbacks with existing materials and clinicians shifting their paradigms ...
L. Bathala   +4 more
semanticscholar   +1 more source

Electroreductive Olefin-Ketone Coupling.

open access: yesJournal of the American Chemical Society, 2020
A user-friendly approach is presented to sidestep the venerable Grignard addition to unactivated ketones to access tertiary alcohols by reversing the polarity of the disconnection. In this work a ketone instead acts as a nucleophile when adding to simple
Pengfei Hu   +9 more
semanticscholar   +1 more source

The Therapeutic Potential and Limitations of Ketones in Traumatic Brain Injury

open access: yesFrontiers in Neurology, 2021
Traumatic brain injury (TBI) represents a significant health crisis. To date, no FDA approved pharmacotherapies are available to prevent the neurological deficits caused by TBI. As an alternative to pharmacotherapy treatment of TBI, ketones could be used
Savannah Anne Daines   +1 more
doaj   +1 more source

Ketone Hydrogenation with Iridium Complexes with “non N–H” Ligands: The Key Role of the Strong Base [PDF]

open access: yes, 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   +2 more sources

Upgrading ketone synthesis direct from carboxylic acids and organohalides

open access: yesNature Communications, 2020
The ketone functional group has a unique reactivity in organic chemistry and is associated with a number of useful reactions. Catalytic methods for ketone synthesis are continually being developed.
Rehanguli Ruzi   +3 more
semanticscholar   +1 more source

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