Results 191 to 200 of about 196,557 (349)

Iridium‐Catalyzed Linear‐Selective sp3 C−H Alkylation of N‐Methylamides Using Alkenes Enabled by Diphosphite Ligands

open access: yesChemistry – A European Journal, EarlyView.
An iridium‐catalyzed linear‐selective sp3 C─H alkylation of N‐methylamides with alkenes is described. This method tolerates various N‐methylacetamide derivatives and has a broad alkene scope. Mechanistic studies were also conducted. Internal alkenes can also be used through in situ consecutive alkene isomerization.
Haluhi Takahashi, Takanori Shibata
wiley   +1 more source

Frontiers in manganese catalysis: a sustainable platform for bond construction and heterocycle synthesis. [PDF]

open access: yesRSC Adv
Das AK   +7 more
europepmc   +1 more source

Selectivity in C-alkylation of dianions of protected 6-methyluridine [PDF]

open access: diamond, 2011
Ngoc Hoa Nguyen   +3 more
openalex   +1 more source

Expedient Discovery of a Metallaphotoredox Cyanomethylation for Synthesizing α‐Aryl Nitriles

open access: yesChemistry – A European Journal, EarlyView.
A metallaphotoredox cyanomethylation reaction has been developed for the synthesis of valuable α‐aryl nitrile intermediates. The methodology was successfully applied to diverse medicinally‐relevant substrates, providing an expedient route to anti‐cancer Senexin compounds, while also removing the need for toxic cyanide reagents. The mechanism was probed
Gemma C. Cook   +6 more
wiley   +1 more source

Alkylation of N-Monosubstituted Diphenylphosphinamides

open access: bronze, 1977
Yoshiko Kobayashi   +2 more
openalex   +2 more sources

Photoinduced Hydrogenative Dearomatization With Homocoupling of Quinolines to Construct Octahydro‐4,4'‐biquinolines

open access: yesChemistry – A European Journal, EarlyView.
Dearomative homocoupling of quinolines into 1,1',2,2',3,3',4,4'‐octahydro‐4,4'‐biquinoline (OHBQ) is reported. The photoexcited boron complex, in situ generated from quinoline, HB(pin), and KOtBu, enables the unprecedented homocoupling of tetrahydroquinolines that is challenging in the ground state, expanding the chemical diversity of OHBQ derivatives.
Mone Suzuki   +2 more
wiley   +1 more source

Site-specific ribozyme-mediated alkylation of DNA substrates. [PDF]

open access: yesNucleic Acids Res
He Y   +7 more
europepmc   +1 more source

Potassium iodide catalysis in the alkylation of protected hydrazines; pp. 10–17

open access: gold, 2016
Anton Mastitski   +3 more
openalex   +1 more source

Monosubstituted N‐Arylhydroxylamine Chemistry: Integrating Contemporary Synthetic Approaches for the Efficient Construction of Diverse Heterocyclic Scaffolds

open access: yesChemistry – A European Journal, EarlyView.
Monosubstituted N‐arylhydroxylamines represent a unique subclass of hydroxylamines that act as pivotal intermediates in redox transformations and as versatile platforms for further synthetic transformations. They serve as key building blocks in the synthesis of architecturally complex heterocycles and other valuable organic compounds.
Michael G. Kallitsakis   +2 more
wiley   +1 more source

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