Results 81 to 90 of about 19,883 (275)

Gold Single‐Atom Catalysts Enable Selective Shuttle Hydrochlorination of Alkynes

open access: yesAngewandte Chemie International Edition, EarlyView.
Gold single‐atom catalysts on activated carbon enable heterogeneous shuttle hydrochlorination of terminal alkynes to vinyl chlorides with high chemo‐ and stereo‐selectivity thanks to cooperation between Au(I) sites and the support. The catalytic system combines broad substrate compatibility, simplified separation, and recoverability, paving the way for
Marc‐Eduard Usteri   +8 more
wiley   +1 more source

Evolution of the Quinoline Scaffold for the Treatment of Leishmaniasis: A Structural Perspective

open access: yesPharmaceuticals
Since the beginning of the XXI century, Leishmaniasis has been integrated into the World Health Organization’s list of the 20 neglected tropical diseases, being considered a public health issue in more than 88 countries, especially in the tropics ...
Carlos F. M. Silva   +3 more
doaj   +1 more source

Investigating the Activity Spectrum for Ring-Substituted 8-Hydroxyquinolines

open access: yesMolecules, 2010
In this study, a series of fourteen ring-substituted 8-hydroxyquinoline derivatives were prepared. The synthesis procedures are presented. The compounds were analyzed using RP-HPLC to determine lipophilicity.
Aidan Coffey   +10 more
doaj   +1 more source

Aza‐Büchner–Curtius–Schlotterbeck Reaction Enables Selective Construction of Quaternary Carbon Centers

open access: yesAngewandte Chemie International Edition, EarlyView.
We introduce the Aza‐Büchner–Curtius–Schlotterbeck (ABCS) reaction: A mild, catalyst‐free method for homologating aryl imines. Diverging from the traditional BCS mechanism, the diazo intermediate undergoes selective C─C insertion to form an all‐carbon quaternary center.
Simon O. Angerer   +6 more
wiley   +1 more source

Enantioselective Synthesis of Endo-Cyclic Beta-Amino Acids with Two Contiguous Stereocenters via Hydrogenation of 3-Carbalkoxy-2-Substituted Quinolines.

open access: yes, 2013
Enantioselective Synthesis of Endo-Cyclic Beta-Amino Acids with Two Contiguous Stereocenters via Hydrogenation of 3-Carbalkoxy-2-Substituted ...
陈章培   +3 more
core  

Crystalline Quinolinate Phosphoribosyltransferase

open access: yesJournal of Biological Chemistry, 1965
Abstract Quinolinate phosphoribosyltransferase catalyzes the formation of nicotinic acid mononucleotide, carbon dioxide, and inorganic pyrophosphate from quinolinic acid and 5-phosphoribosyl 1-pyrophosphate. The enzyme has a molecular weight of 165,000 and can be irreversibly dissociated into inactive protein units with a molecular weight of 54,000 ...
P M, Packman, W B, Jakoby
openaire   +2 more sources

Synthesis and biological evaluation of triazolo[4,5-g]quinolines, imidazo[4,5-g]quinolines and pyrido[2,3-g]quinoxaline. Part II

open access: yes, 2003
Synthesis of triazolo[4,5-g]quinolines, imidazo[4,5-g]quinolines and pyrido[2,3-g]quinoxaline has been described. Antimycobacterial, antibacterial and antimycotic activity were also reported.
BOATTO, Gianpiero   +5 more
core  

Quinolines and analogs with a marked anticancer activity.

open access: yes, 2015
Quinolines and analogs with a marked anticancer activity.
Katarzyna Malarz (829453)   +6 more
core   +1 more source

Double Hydroboration of Quinolines via Borane Catalysis: Diastereoselective One Pot Synthesis of 3-Hydroxytetrahydroquinolines

open access: yes, 2020
Described herein is an organoborane-catalysed consecutive borylative reduction of quinolines and isoquinolines to furnish tetrahydro(iso)quinolines bearing a C(sp(3))-B bond beta to the nitrogen atom.
Sehoon Park   +4 more
core   +1 more source

Quinoline: A versatile heterocyclic

open access: yesSaudi Pharmaceutical Journal, 2013
Quinoline or 1-aza-naphthalene is a weak tertiary base. Quinoline ring has been found to possess antimalarial, anti-bacterial, antifungal, anthelmintic, cardiotonic, anticonvulsant, anti-inflammatory, and analgesic activity. Quinoline not only has a wide range of biological and pharmacological activities but there are several established protocols for ...
Marella, Akranth   +7 more
openaire   +2 more sources

Home - About - Disclaimer - Privacy