Results 131 to 140 of about 19,839 (247)

Electrocatalytic Polarity Inversion of Azlactones: Access to α‐Quaternary Amino Acids with Electron‐Rich SOMOphiles

open access: yesAngewandte Chemie, Volume 138, Issue 42, 12 October 2026.
Electrocatalytic polarity inversion of azlactones unlocks their coupling with electron‐rich reaction partners. Triarylamine‐mediated oxidation of the azlactone enolate generates an electrophilic radical intermediate that undergoes selective C4 functionalization with diverse SOMOphiles.
Paula Rodríguez   +6 more
wiley   +2 more sources

Enantioselective Gas Chromatographic Analysis of Cyclopropane Derivatives [PDF]

open access: yes, 2018
Chirasil-β-Dex was used as chiral stationary phase for the enantioselective gas chromatographic analysis of several new chiral cyclopropane derivatives.
Lacrampe, F.   +5 more
core  

Cyclopropane-Alkene Metathesis by Gold(I)-Catalyzed Decarbenation of Persistent Cyclopropanes

open access: yes, 2019
A gold(I)-catalyzed cyclopropane-alkene metathesis has been demonstrated with two new families of cyclopropane derivatives of naphthalene and phenanthrene (benzo-fused norcaradienes). In this process, metal carbene units are transferred from a persistent
Mato, Mauro   +3 more
core  

VIBRATIONAL SPECTRA AND CONFORMATIONS OF SOME SUBSTITUTED CYCLOPROPANE DERIVATIVES

open access: yes, 1980
Author Institution:The infrared and Raman of vinyloxirane, epibromihydrin, and (bromomethy1)-cyclopropane have been recorded. The data for the liquid and vapor phases of vinyloxirane are consistent with the presence of three conformations, and the s ...
Wurrey, C. J.   +2 more
core   +1 more source

Broadly Accessible and Highly Active Hydrophosphination Catalysis With Simple Calcium Compounds in DMSO Solution

open access: yesChemSusChem, Volume 19, Issue 19, 14 October 2026.
Simple calcium bis(amido) compounds are exceptionally potent hydrophosphination catalysts in DMSO solution. At ambient temperature or under irradiation, this catalyst successfully engages all manner of unsaturated substrates with primary and secondary phosphines with more than 100 examples of high conversion.
Moniruzzaman Moniruzzaman, Rory Waterman
wiley   +1 more source

The Expanding Role of Diazirines in Synthetic Methodology

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 38, 13 October 2026.
Beyond their established role in photoaffinity labeling, diazirines have emerged as versatile reagents in synthetic chemistry. This review highlights their dual reactivity as carbene and nitrogen‐transfer precursors, showcasing mechanistic insights and diverse applications in cyclopropanations, cycloadditions, skeletal editing, amination, heterocycle ...
Viktor Savic   +3 more
wiley   +1 more source

Cyclopropane [PDF]

open access: yesProceedings of the Royal Society of Medicine, 1936
openaire   +2 more sources

Toward Chemoselective Modification of Selenocysteine-Containing Biomolecules Via Doubly Activated Cyclopropanes. [PDF]

open access: yesACS Omega
Yamakoshi H   +8 more
europepmc   +1 more source

Carbon Insertion into Electron-Deficient (Aza)indoles via a Radical-Polar Crossover Strategy. [PDF]

open access: yesJ Am Chem Soc
Roth AD   +5 more
europepmc   +1 more source

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