Results 251 to 260 of about 84,342 (322)

Syntheses of N-(Chlorobenzoylaminoalkyl)piperidines and N-(Chlorothiobenzoylaminoalkyl)piperidines

open access: yesNippon kagaku zassi, 1969
Kakuzo Isagawa   +2 more
openaire   +2 more sources

Mesoionic N‐Heterocyclic Olefins, Imines, Thiones, Phosphinidenes and Their Application in Catalysis

open access: yesAngewandte Chemie International Edition, Volume 65, Issue 3, 16 January 2026.
This minireview covers recent advances in the synthesis, reactivity, and metal‐free catalytic uses of mesoionic N‐heterocyclic olefins (mNHOs), imines (mNHIs), thiones (mNHTs), and phosphinidenes (mNHPs). Abstract Transition metal compounds are widely known for their ability to activate small molecules and are excellent catalysts for a wide range of ...
Subir Maji   +3 more
wiley   +1 more source

Predicting the Stability of Base‐mediated C─H Carboxylation Adducts Using Data Science Tools

open access: yesAngewandte Chemie, Volume 138, Issue 2, 9 January 2026.
A computational approach integrating quantum chemistry and machine learning enables the prediction of CO2–adduct stability. Model interpretability and experimental validation highlight its utility for designing base‐mediated C–H carboxylation reactions.
Maike Eckhoff   +6 more
wiley   +2 more sources

Total Synthesis of the Cyanobacterial Alkaloid Nostodione A

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 2, January 16, 2026.
The total synthesis of the alkaloid nostodione A is successfully achieved utilizing 3,4‐dihydrocyclopenta[b]indole‐1,2‐dione as a key intermediate. The sensitive benzylidene moiety is introduced via a Knoevenagel condensation with p‐hydroxybenzaldehyde.
Oscar F. Casadiego‐Díaz   +3 more
wiley   +1 more source

Enantioconvergent Access to Chiral S(VI) Stereocenters by Kinetic Resolution of Sulfonimidoyl Chlorides

open access: yesAngewandte Chemie, Volume 138, Issue 2, 9 January 2026.
An enantioconvergent approach for the kinetic resolution of S(VI) stereocenters that leverages the electrophilic reactivity of the chiral sulfur atom is described. The catalytic process provides access to sulfonimidoyl chlorides and sulfonimidates, which are among the least studied S(VI) functionalities.
Arko Das   +10 more
wiley   +2 more sources

Novel Hexahydrospiro[piperidine-4,1‘-pyrrolo[3,4-c]pyrroles]:  Highly Selective Small-Molecule Nociceptin/Orphanin FQ Receptor Agonists

open access: green, 2002
Sabine Kolczewski   +10 more
openalex   +1 more source

Electrochemical Intramolecular Aminobromination of Alkenes

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 2, January 16, 2026.
A versatile electrochemical method for the intramolecular aminobromination of alkenes has been developed. The method provides access to five‐, six‐, and seven‐membered heterocycles by exploiting tetrabutylammonium bromide as an electrolyte and bromine source.
Sara Colombo   +9 more
wiley   +1 more source

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