Results 221 to 230 of about 127,195 (275)

Epidemiological Comparative Study on Contact Sensitisations in Woodworkers With Occupational Dermatitis: Patch Test Data of the Information Network of Departments of Dermatology, 1999 to 2023

open access: yesContact Dermatitis, Volume 94, Issue 2, Page 125-136, February 2026.
The data demonstrates that allergic contact dermatitis is common in WW with OD. The most important allergens include resins (including epoxy resin) and plant‐derived substances (including colophonium). The high share of WW with allergic contact dermatitis and face dermatitis hampers preventive efforts.
Luisa Heizmann   +61 more
wiley   +1 more source

Divergent Total Synthesis of Denudatine Alkaloids Cochlearenine, Macrocentrine, Dictizine, 15‐Veratroyl‐17‐Acetyl‐19‐Oxodictizine, and the Proposed Structure of Acochlearine

open access: yesAngewandte Chemie, Volume 138, Issue 4, 22 January 2026.
An intramolecular Mannich reaction (A/B/E/F rings) and intermolecular Diels–Alder reactions (C/D rings) afforded a cage‐like hexacyclic core skeleton of denudatine alkaloids. Derivatization of the hexacyclic intermediate enabled the first asymmetric total syntheses of four denudatine alkaloids: (–)‐cochlearenine, (–)‐macrocentrine, (–)‐dictizine, and (–
Shun Kawano   +5 more
wiley   +2 more sources

Deprotective Functionalization: An Emerging Concept for Amine Reactivity

open access: yesChemistry – A European Journal, Volume 32, Issue 4, 23 January 2026.
While protecting groups are indispensable in total synthesis to avoid undesired reactivity, installation and removal of protecting groups lead to an increase in the step‐count, cost, waste production and time requirement. One approach tackling these drawbacks is deprotective functionalization, which combines deprotection and postfunctionalization in a ...
Irmgard Tiefenbrunner   +2 more
wiley   +1 more source

Activation of Cyanate Anions by Phosphine Radical Cations Enables Formal Hydrocarbamoylation of Alkenes

open access: yesAngewandte Chemie, Volume 138, Issue 4, 22 January 2026.
A photocatalytic formal hydrocarbamoylation reaction that employs a cyanate anion as the C1 source and provides N‐acyl iminophosphorane products from activated alkenes is described. Mechanistic investigations suggest generation of a phosphoranyl radical by addition of the cyanate anion to a phosphine radical cation, which enables the delivery of the ...
Petra Vojáčková, Armido Studer
wiley   +2 more sources

Tuning the efficiency of molecular probes <i>via</i> quinone methide-based <i>in situ</i> labeling. [PDF]

open access: yesRSC Chem Biol
Rabinowitz Z   +7 more
europepmc   +1 more source

Pseudotetraivprolide aus Pseudomonas entomophila liefern Einblicke in die Biosynthese von Detoxin/Rimosamid‐ähnlichen Anti‐Antibiotika

open access: yesAngewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Pseudotetraivprolid ist ein neuer Akteur unter den Detoxin/Rimosamid‐ähnlichen Naturstoffen. Die Biosynthese erfordert FabD aus dem Primärstoffwechsel und einen PipDFG‐Komplex für die Acetylierung im letzten Schritt – wodurch schließlich die anti‐antibiotische Wirkung entsteht.
Edna Bode   +13 more
wiley   +1 more source

Engineering pH-Responsive Dendrimer-STAT3 Inhibitor Conjugates for Intracellular Delivery. [PDF]

open access: yesBiomacromolecules
Siva Sankara C   +6 more
europepmc   +1 more source

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