Results 31 to 40 of about 9,595 (219)

Deoxygenative C2-heteroarylation of quinoline N-oxides: facile access to α-triazolylquinolines

open access: yesBeilstein Journal of Organic Chemistry, 2021
A metal- and additive-free, highly efficient, step-economical deoxygenative C2-heteroarylation of quinolines and isoquinolines was achieved from readily available N-oxides and N-sulfonyl-1,2,3-triazoles. A variety of α-triazolylquinoline derivatives were
Geetanjali S. Sontakke   +2 more
doaj   +1 more source

Synthesis and Kinase Inhibitory Potencies of Pyrazolo[3,4-g]isoquinolines

open access: yesMolecules, 2022
A new series of pyrazolo[3,4-g]isoquinoline derivatives, diversely substituted at the 4- or 8-position, were synthesized. The results of the kinase inhibitory potency study demonstrated that the introduction of a bromine atom at the 8-position was ...
Mathilde Defois   +8 more
doaj   +1 more source

A Facile Palladium Catalysed 3-Component Cascade Route to Functionalised Isoquinolinones and Isoquinolines [PDF]

open access: yes, 2016
Palladium catalysed three component cascade process, involving coupling of 2-iodobenzoates, -benzaldehydes, or acetophenones with substituted allenes and ammonium tartrate as an ammonium surrogate, provides a novel and facile route to substituted ...
Ackermann   +51 more
core   +1 more source

Syntheses, transformations and applications of aminonaphthol derivatives prepared via modified Mannich reactions [PDF]

open access: yes, 2013
A special alteration is the three-component modi fi ed Mannich reaction (mMR), in which formaldehyde is replaced by an aromatic aldehyde, the secondary amine by ammonia, and the C e H acid by an electron-rich aromatic compound such as 1- or 2 ...
Fülöp, Ferenc, Szatmári, István
core   +1 more source

Reactivity of 3-Ethoxycarbonyl Isoquinolinium Salts Towards Various Nucleophilic Reagents: Applications to the Synthesis of New 1,2-Dihydroisoquinoline-3-carboxylates

open access: yesMolecules, 2002
Different types of novel 1,2-disubstituted 1,2-dihydro isoquinolines were synthesized by addition reactions of organolithium, alcoholates and borohydride reagents with various isoquinolinium salts.
Jean Pierre Bazureau   +1 more
doaj   +1 more source

Hypecoum spp.—Chemistry and Biological Activity of Alkaloids

open access: yesDiversity, 2023
Genus Hypecoum Tourn. ex L. belongs to the poppy family Papaveraceae and comprises about 19 species occurring in Europe, Northern Africa and Asia.
Nadezhda Kostova, Tsvetelina Doncheva
doaj   +1 more source

Anti-Alphaviral Alkaloids: Focus on Some Isoquinolines, Indoles and Quinolizidines

open access: yesMolecules, 2022
The discovery and the development of safe and efficient therapeutics against arthritogenic alphaviruses (e.g., chikungunya virus) remain a continuous challenge.
Anne-Laure Sandenon Seteyen   +5 more
doaj   +1 more source

Synthetic strategies for 5- and 6-membered ring azaheterocycles facilitated by iminyl radicals [PDF]

open access: yes, 2016
The author thanks EaStCHEM for financial support.The totality of chemical space is so immense that only a small fraction can ever be explored. Computational searching has indicated that bioactivity is associated with a comparatively small number of ring ...
Walton, John Christopher
core   +2 more sources

Tertiary Alcohols as Radical Precursors for the Introduction of Tertiary Substituents into Heteroarenes [PDF]

open access: yes, 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

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