Results 121 to 130 of about 40,366 (201)

Tudor England and Stewart Scotland Through Spanish Eyes: A Complete Transcription and Translation of Pedro de Ayala's Letter of 1498 to King Ferdinand of Castile and Queen Isabella of Aragon

Renaissance Studies, EarlyView.
Abstract Pedro de Ayala served as a diplomat for King Ferdinand II of Aragon and Queen Isabella I of Castile at the courts of Henry VII, King of England, and James IV, King of Scots. In July 1498, he wrote a letter, partly in cipher, to report to his king and queen on such matters as Spain's interests in international diplomacy; the characters and ...
Adrian William Jaime, Valeria Tapia Cruz, Mairi Cowan   +2 more
wiley   +1 more source

Projects as Sites of Experimentalist Governance and Europeanization: Border Region Universities in Focus

Contemporary European Politics, Volume 4, Issue 2, June 2026.
ABSTRACT European Union (EU) funding relies on short‑term, project‑based instruments while pursuing long‑term strategic policy objectives. Existing research rarely examines how these project‑based instruments contribute to the interpretation and evolution of these objectives as articulated in EU governance architectures.
Alina Felder‐Stindt
wiley   +1 more source

Asymmetric Transformations of α,β‐Unsaturated Oxazolidinones Catalyzed by C2‐Symmetric Chiral Iron Triad Complexes

Advanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.
This review highlights the evolution of highly enantioselective oxazolidinone transformations enabled by C2‐symmetric ligands, with emphasis on chiral iron triad complexes as cost‐effective, environmentally benign alternatives to late‐transition‐metal catalysts.
Arthur David, Thierry Ollevier
wiley   +1 more source

Strategic Functionalization of Benzylic C(sp3)H Bonds: Unlocking the Potential for Enantioselective δ‐Lactonization

Advanced Synthesis &Catalysis, Volume 368, Issue 9, 5 May 2026.
Recent advancements in bio‐inspired Mn‐catalyzed directed oxidations of carboxylic acids have provided promising pathways for the synthesis of a wide variety of chiral γ‐lactones. In our current study, however, we have established a catalytic route using 0.25 mol% of electron‐rich Mn‐catalyst Mn(dMMbpbp) that redirects the lactonization reaction to the
Angshuk Saha, Arnau Call, Daniel L. J. Broere, Robertus J. M. Klein Gebbink   +3 more
wiley   +1 more source

Multiple Supernumerary Teeth Yang Langka: Sebuah Laporan Kasus

Cakradonya Dental Journal, 2015
Supernumerary teeth adalah gigi yang tumbuh lebih dari jumlah normal gigi pada umumnya. Supernumerary teeth bisa berupa gigi tunggal, multiple, tumbuhnya unilateral, bilateral, pada satu atau kedua rahang. Namun kebanyakan tumbuh di regio anterior rahang
Teuku Ahmad Arbi
doaj  

Group 6 Metal NHC and CAAC Complexes in Homogeneous Catalysis: Reactivity Trends and Selected Applications

ChemCatChem, Volume 18, Issue 9, 14 May 2026.
Group 6 metal complexes of Cr, Mo, and W supported by N‐heterocyclic carbenes are emerging as versatile platforms for homogeneous catalysis. This review highlights advances in reduction, hydrogen transfer, oxidation, and small molecule activation, revealing how ligand design controls reactivity and opens sustainable alternatives to noble‐metal ...
Beatriz Garcia, Alberto Bertoldo, Beatriz Royo   +2 more
wiley   +1 more source

Glycerol Valorization to High‐Value Chemicals: Chemical and Biocatalytic Routes With Emphasis on Enzyme Immobilization and Laccase/TEMPO Systems: A Review

ChemNanoMat, Volume 12, Issue 5, May 2026.
Fossil fuel reserves are rapidly depleting, while global energy demands continue to rise, prompting researchers to seek sustainable alternatives. Among these, biofuels, particularly biodiesel, stand out as a biocompatible and friendly option. However, biodiesel production via transesterification generates large quantities of glycerol (GOL) as a by ...
Muhammad Faiz Ahmad, Shadeera Rouf, Tatjana N. Parac‐Vogt, Sulaiman Al‐Zuhair, Yaser E. Greish   +4 more
wiley   +1 more source

Carbohydrate‐Based Drug Discovery: Synthetic Strategies and Clinical Applications

Israel Journal of Chemistry, Volume 66, Issue 3, May 2026.
The picture depicts the molecules discussed in the review. On the left side, the general scaffold of sugars is shown. Next to it are four carbohydrate‐based molecules, including remdesivir, islatravir, empagliflozin, and Globo‐H. Remdesivir and islatravir contain a substituted ribose ring attached to a modified nucleobase.
Stephan Scheeff, Jemma Arakelyan, Billy Wai‐Lung Ng   +2 more
wiley   +1 more source

A Density Functional Theory Study of the Structural Preferences of Type B Heteropentalene Mesomeric Betaines and Their Non‐Aromatic Azacyclooctatetraene Isomers

Journal of Heterocyclic Chemistry, Volume 63, Issue 5, Page 778-784, May 2026.
DFT has been used to rationalize the relative stabilities of the Type B heteropentalene mesomeric betaines (HMBs) and their azacyclooctatetraene isomers; the tetraaza and triaza HMBs are generally expected to be thermodynamically more stable than their azacyclooctatetraene isomers, whereas the converse is true for diaza systems.
Jake Bell, Mark T. Sims, Stephen P. Stanforth   +2 more
wiley   +1 more source

Formal Diels-Alder reaction of saturated carboxylic acids via C-H activation. [PDF]

Nat Chem
He Q, Lu Y, Sheng T, Chekshin N, Yan JL, Zhang T, Yu JQ.   +6 more
europepmc   +1 more source