Results 221 to 230 of about 73,389 (281)

Photochemical Cyclization of Tertiary Buta‐2,3‐dienamides to β‐Lactams Upon Triplet Energy Transfer

Angewandte Chemie, Volume 138, Issue 13, 23 March 2026.
Energy transfer is the key to the successful photocyclization of the title compounds to 3,4‐disubstituted 2‐azetidinones. If the substituent at the nitrogen atom is primary (R2 = H), trans products are formed exclusively. The triplet state of xanthen‐9‐one (XT) was found to be quenched by an allene amide (R, R2 = H, R1 = Bn, and R3 = Ph) with a ...
Johannes Hofer, Maria‐Sophie Bertrams, Christoph Kerzig, Thorsten Bach   +3 more
wiley   +2 more sources

Green synthesis of CoAl₂O₄@ZnO nanocomposite using Aamygdalus scoparia Spach gum and its photocatalytic activity for tetracycline degradation. [PDF]

Sci Rep
Nejadkhorasani F, Zali Boeini H, Taghavi Fardood S.   +2 more
europepmc   +1 more source

Relative Humidity Influences Aureobasidium pullulans Degradation of Polyester Polyurethane Foam

Environmental Microbiology Reports, Volume 18, Issue 2, April 2026.
The plant pathogen Aureobasidium pullulans' ability to degrade polyurethane foam is impacted by Equilibrium Relative Humidity (ERH). These impacts can be observed through foam weight loss, scanning electron microscopy (SEM), fungal growth, and cutinase gene expression.
Amanda Stickney, Nicole Renninger, Dominique Wagner, John Van Dusen, Victor A. Roman, Vanessa Varaljay, Blake W. Stamps, Nancy Kelley‐Loughnane, Karen C. Dannemiller   +8 more
wiley   +1 more source

Introduction of Periodic Ketone Units on Vinyl Polymers via a Radical Alternating Copolymerization and Postpolymerization Modification: Sequence-Oriented Photodegradation in the Bulk State. [PDF]

J Am Chem Soc
Kuroda K, Ouchi M.
europepmc   +1 more source

MT@SiO2 Enhances MEK5‐MAPK6‐NAC32 Mediated Salicylic Acid Synthesis Which Increases Resistance to Glomerella Leaf Spot in Apple

Plant Biotechnology Journal, Volume 24, Issue 4, Page 2318-2334, April 2026.
ABSTRACT Glomerella leaf spot (GLS), a fungal disease caused by Colletotrichum fructicola, is a major destructive disease of apples but research on control measures is limited. Melatonin (MT) is a phytohormone‐like compound that affects plant growth and stress response but is prone to light‐induced degradation, resulting in low stability and efficacy ...
Yong Zhang, Guangming Ma, Lijie Gao, Xian Pu, Moxian Chen, Xiaodong Zheng, Michael Wisniewski, Xiangyang Li   +7 more
wiley   +1 more source

Manganese (III) meso-tetrakis(4-nitrophenyl) porphyrin sensitizes TiO₂ nanoparticles into visible region via a pyridyl linker for degradation of organic dyes. [PDF]

Sci Rep
Rezaei M, Rezaeifard A, Jafarpour M, Moghaddam AZ.   +3 more
europepmc   +1 more source

Mechanism of the Photodecomposition of Stable Triarylmethyl Radicals

Angewandte Chemie, Volume 138, Issue 11, 9 March 2026.
Photolysis of luminescent chlorinated trityl radicals was studied with density functional theory and the decomposition products were isolated and characterized. It proceeds by a 5‐electron electrocyclization then a 1,8‐sigmatropic chloride shift, forming non‐emissive, less stable fluorenyl radicals.
Hannah E. Hackney, Claude Y. Legault, Hatem M. Titi, Dmytro F. Perepichka   +3 more
wiley   +2 more sources

Enhancement of commercial dye photocatalytic degradation through the use of silver-doped kaolinite-zinc oxide quantum dots. [PDF]

BMC Chem
Farrag AM, Awad ME, Aboelnga MM, El-Bindary AA.   +3 more
europepmc   +1 more source

Titania-Supported Photocatalytic Coatings of Cu₂O Nanoparticles Synthesized via Heterogeneous Nucleation. [PDF]

ACS Omega
Demény P, Tegze B, Fodor B, Maák P, Madarász J, Pap Z, Zámbó D, Igricz T, Rácz AS, Nagy N, Hórvölgyi Z.   +10 more
europepmc   +1 more source

Rh‐Catalyzed [2 + 2 + 2] Cycloaddition of Linked Bis(Diynes) Ar‐C≡C‐C≡C‐(CH2)3‐C≡C‐C≡C‐Ar With Quinones: Synthesis and Photophysical Properties of Bis(Arylethynyl)‐Naphthoquinones and Anthraquinones

Chemistry – A European Journal, Volume 32, Issue 11, 16 March 2026.
We report the synthesis bis(arylethynyl)naphtho‐ and anthraquinones via Rh(I)‐catalyzed [2 + 2 + 2] cycloaddition reactions. The substrate scope of both quinones and linked bis‐diynes was explored. Microwave irradiation remarkably enhanced yields.
Luana A. Machado, Jianhua Han, Fábio G. Delolo, Joyce C. Oliveira, Breno U. Abreu, Hállen D. R. Calado, Joannes Krebs, Leibo Tan, Qing Ye, Tobias Groß, Christoph Lambert, Camille Latouche, Abdou Boucekkine, Jean‐François Halet, Holger Braunschweig, Todd B. Marder, Eufrânio N. da Silva Júnior   +16 more
wiley   +1 more source