Results 161 to 170 of about 16,148 (267)

A Straightforward Synthesis of a Diene From a Homoallylic Bromide to Access Cycloadducts to Elucidate Michael Acceptors as Antimicrobial Motifs

open access: yesChemistrySelect, Volume 11, Issue 25, 3 July 2026.
A straightforward method to cleanly yield a novel diene from isopulegol was developed. The diene served as a precursor to various cycloadducts, which led to the identification of Michael acceptors as antimicrobial motifs. ABSTRACT Conjugated dienes are useful precursors to cascade reactions that undergo cycloadditions to access polycyclic compounds ...
Jose G. Urbiola   +6 more
wiley   +1 more source

A one-electron perspective on dative and ionic bonding. [PDF]

open access: yesChem Sci
Barrena-Espés D   +2 more
europepmc   +1 more source

Tying up lots of loose ends: dealing with unpublished crystal structures

open access: yesActa Crystallographica Section C, Volume 82, Issue 7, Page 303-309, July 2026.
Over 2000 previously unpublished crystal structures have been deposited in the Cambridge Structural Database as CSD Communications in a project to make the results of public funding available to the scientific community.Direct deposition of crystal structures into the Cambridge Structural Database as CSD Communications is a simple and effective means ...
William Clegg
wiley   +1 more source

Synthesis of 2‐Aza‐Bicyclo[4.3.0]nonane Derivatives Related to the Camporidines via Intramolecular [3+2]‐Cycloaddition

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 24, 23 June 2026.
The intramolecular nitrile oxide olefin [3 + 2]‐cycloaddition offers a reliable entry toward 2‐aza‐bicyclo[4.3.0]‐nonanes, a substructure found in several bioactive piperidine alkaloids. The required oxime precursors were prepared in non‐racemic form by Ir‐catalyzed asymmetric allylation and ring‐closing metathesis.
Alicia Köcher   +5 more
wiley   +1 more source

Lithium Diisopropylamide‐Mediated Ring‐Opening of Tetrahydrofuran in the Synthesis of Polyhydroxylated Indolizidines

open access: yesEuropean Journal of Organic Chemistry, Volume 29, Issue 24, 23 June 2026.
Chiral tri‐ and pentahydroxy spirocyclopentane‐indolizidines were synthesized using lithium diisopropylamide “LDA” promoted diallylation and tetrahydrofuran “THF” ring‐opening in a one‐pot procedure as a key step. The sequence leading to the targeted hydroxy‐spiroindolizidines was achieved by cis‐dihydroxylation followed by reduction of the enamine and
Paula Fraňová   +6 more
wiley   +1 more source

From Phosphinimines to Four‐Membered SiCPN Cations: Insights Into N–Si Bonding and Ring Strain

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 18, 22 June 2026.
Sterically tuned N‐silyl phosphinimines enable four‐membered SiCPN cations. Hydride abstraction yields cyclic cations for Me and iPr substituents at silicon, while tBu gives a protonated intermediate. Multinuclear NMR spectroscopy, X‐ray crystallography, thermochemical density functional theory investigations, and natural bond orbital analyses reveal ...
Alexander Falk, Jonathan O. Bauer
wiley   +1 more source

Home - About - Disclaimer - Privacy