Results 191 to 200 of about 77,395 (287)

Hetero Diels-Alder Cycloaddition of Siloxy Vinylallenes-Synthesis of the Indolizidine Skeleton: Experimental and Computational Studies. [PDF]

Molecules
Rodríguez-Caro JF, Vargas-Arana G, Afonso MDM, Palenzuela JA.   +3 more
europepmc   +1 more source

The Diels-Alder Reaction as a Mechanistic Probe for Vibrational Strong Coupling. [PDF]

Angew Chem Int Ed Engl
Muller C, Piejko M, Bascil S, Moran J.
europepmc   +1 more source

Diels-Alder reaction affords circumpyrene tetracarboxydiimide with excited state intramolecular charge transfer character. [PDF]

Commun Chem
Chen Q, Guizzardi M, Méndez F, Ju C, Keller HR, Cerullo G, Osella S, Scotognella F, Paternò GM, Müllen K, Narita A.   +10 more
europepmc   +1 more source

Antioxidant Activities of Pentacyclic Triterpenes From Melipona beecheii Propolis and Their Semisynthetic Derivatives

Chemistry &Biodiversity, Volume 23, Issue 9, September 2026.
M. beecheii propolis contains eleven identified PTs, including germanicone and glutinol, reported for the first time in this material. Antioxidant assays reveal Fe(III)‐reducing activity at an effective concentrations lower than DPPH radical‐scavenging activity.
Aarón Santana‐Hernández, Alejandro Yam‐Puc, Pamela Yah‐Nahuat, María Vargas‐Vargas, Rocío Borges‐Argáez, Julio Aguiar‐Pech, Jesús Ramón‐Sierra, Elizabeth Ortiz‐Vázquez   +7 more
wiley   +1 more source

Utilizing the Pentadehydro-Diels-Alder Reaction for Polycyclic Aromatic Compound Synthesis: Diels-Alder-Based Linker Transformation. [PDF]

Molecules
Xia Y, Liang Q, Zhu C, Sun B.
europepmc   +1 more source

Diversification of the Avarane Skeleton Toward Spiroetherone A

ChemistryEurope, Volume 4, Issue 9, September 2026.
Molecular complexity and diversity were generated from the avarone skeleton, leading, among other transformations, to an oxaspiro[4.5]dienone via Wagner–Meerwein rearrangements, a popolohuanone E‐like dibenzofuran via a (3+2) dimerization, and a pentacyclic imidate via a tandem PIDA‐mediated alkene–phenol cyclization/Ritter reaction.
Guillaume Schoenn, Régis Guillot, Cyrille Kouklovsky, Guillaume Vincent   +3 more
wiley   +1 more source

NMR-Based Structural Analysis of Highly Substituted Pyridines From Kondrat'eva Aza-Diels-Alder Cycloadditions. [PDF]

Magn Reson Chem
Suárez-Moreno GV, Méndez F, Gutierrez-Carrillo A, Rincón-Guevara MA, Amador-Sánchez YA, Islas-Jácome A, González-Zamora E.   +6 more
europepmc   +1 more source

Dynamic Covalent Chemistry Enables Self‐Healing and Compatibilization in Polypropylene Composites

ENERGY &ENVIRONMENTAL MATERIALS, Volume 9, Issue 5, September 2026.
A high‐performance polypropylene insulation material is created through dynamic covalent crosslinking. It achieves exceptional dielectric properties, autonomous self‐healing, and easy recycling, offering a sustainable solution for future HVDC transmission systems.
Hongzhe Zhang, Wenye Zhang, Wenjie Huang, Jun‐Wei Zha   +3 more
wiley   +1 more source

Achiral benzoic acid appended helical polymers for the copper-catalyzed asymmetric Diels-Alder reaction and Michael addition with excellent enantioselectivity and recyclability. [PDF]

Chem Sci
Ti QH, Mo MY, Gao RT, Liu N, Wu ZQ.
europepmc   +1 more source

Layered π Systems Based on Ferrocenophanes

European Journal of Inorganic Chemistry, Volume 29, Issue 25, 1 September 2026.
Syntheses of a variety of ferrocenophanes and extensions of their π systems are reported. These are performed by Knoevenagel reactions and predominantly lead to syn diastereomers. Eight ferrocenophanes were crystallographically characterized. [1.1]Ferrocenophane was prepared by the literature method along with a small amount of [1.1.1.1]ferrocenophane,
Wing‐Yin Tsang, Holger Butenschön
wiley   +1 more source