Results 41 to 50 of about 4,572 (262)

Organocatalytic Asymmetric Cyanosilylation of Nitroalkenes

open access: yesChemistry – A European Journal, 2010
5 páginas, 1 figura, 5 ...
Bernal, Pablo   +2 more
openaire   +3 more sources

Neuroprotective actions of a fatty acid nitroalkene in Parkinson’s disease

open access: yesnpj Parkinson's Disease, 2023
To date there are no therapeutic strategies that limit the progression of Parkinson’s disease (PD). The mechanisms underlying PD-related nigrostriatal neurodegeneration remain incompletely understood, with multiple factors modulating the course of PD ...
Roberto Di Maio   +8 more
doaj   +1 more source

A traceless photocleavable linker for the automated glycan assembly of carbohydrates with free reducing ends [PDF]

open access: yes, 2016
We report a traceless photocleavable linker for the automated glycan assembly of carbohydrates with free reducing ends. The reductive-labile functionality in the linker tolerates all commonly used reagents and protocols for automated glycan assembly, as ...
Bartetzko, M. P.   +6 more
core   +1 more source

Cathodic hydrodimerization of nitroolefins

open access: yesBeilstein Journal of Organic Chemistry, 2015
Nitroalkenes are easily accessible in high variety by condensation of aldehydes with aliphatic nitroalkanes. They belong to the group of activated alkenes that can be hydrodimerized by cathodic reduction.
Michael Weßling, Hans J. Schäfer
doaj   +1 more source

Chemistry of Nitroquinolones and Synthetic Application to Unnatural 1-Methyl-2-quinolone Derivatives

open access: yesMolecules, 2010
The 1-methyl-2-quinolone (MeQone) framework is often found in alkaloids and recently attention was drawn to unnatural MeQone derivatives with the aim of finding new biologically active compounds, however, low reactivity of the MeQone framework prevents ...
Nagatoshi Nishiwaki
doaj   +1 more source

Enantioselective Synthesis of exo-4-Nitroprolinates from Nitro­alkenes and Azomethine Ylides Catalyzed by Chiral Phosphor­amidite·Silver(I) or Copper(II) Complexes [PDF]

open access: yes, 2015
Chiral complexes formed by privileged phosphoramidites derived from chiral binol and optically pure Davies’ amines, and copper(II) triflate, silver(I) triflate or silver(I) benzoate are excellent catalysts for the general 1,3-dipolar cycloaddition ...
Castelló Moncayo, Luis Miguel   +5 more
core   +2 more sources

The Diarylprolinol Silyl Ethers: After 20 Years Still Opening New Doors in Asymmetric Catalysis

open access: yesAngewandte Chemie, Volume 138, Issue 11, 9 March 2026.
Catalysis Rules! The year 2025 marks the 20th anniversary of diarylprolinol silyl ethers in asymmetric organocatalysis. During the first decade after their discovery, these catalysts have been established as one of the most versatile tools in aminocatalysis. Although now considered mature, recent years have witnessed renewed innovation.
Enrico Marcantonio   +2 more
wiley   +2 more sources

Synthesis of enantioenriched azo compounds: Organocatalytic Michael addition of formaldehyde N-tert-butyl hydrazone to nitroalkenes [PDF]

open access: yes, 2013
The unprecedented diaza-ene reaction of formaldehyde N-tert-butyl hydrazone with nitroalkenes can be efficiently catalyzed by an axially chiral bis-thiourea to afford the corresponding diazenes in good to excellent yields (60-96%) and moderate ...
Bernal Fernández, Pablo   +4 more
core   +1 more source

Ammonia–Borane-Mediated Reduction of Nitroalkenes [PDF]

open access: yesSynOpen, 2020
AbstractAmmonia borane (AB) has been successfully employed in the reduction of nitroalkenes. A variety of nitrostyrenes and alkyl-substituted­ nitroalkenes were chemoselectively reduced to the corresponding nitroalkanes, in short reaction time, with an atom-economic, simple experimental procedure that also works with α- and β-substituted nitroolefins.
Maurizio Benaglia   +3 more
openaire   +3 more sources

Recent Advances in Asymmetric Organocatalyzed Conjugate Additions to Nitroalkenes [PDF]

open access: yes, 2017
The asymmetric conjugate addition of carbon and heteroatom nucleophiles to nitroalkenes is a very interesting tool for the construction of highly functionalized synthetic building blocks.
Alonso, Diego A.   +6 more
core   +3 more sources

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