Results 51 to 60 of about 5,801 (188)

Halogenated and Nonhalogenated Metabolites from the Marine-Alga-Endophytic Fungus Trichoderma asperellum cf44-2

Marine Drugs, 2018
One new bisabolane sesquiterpene, bisabolan-1,10,11-triol (1), one new norbisabolane sesquiterpene, 12-nor-11-acetoxybisabolen-3,6,7-triol (2), two new naturally occurring monoterpenes, (7S)- and (7R)-1-hydroxy-3-p-menthen-9-oic acids (3 and 4), one new ...
Yin-Ping Song, Feng-Ping Miao, Sheng-Tao Fang, Xiu-Li Yin, Nai-Yun Ji   +4 more
doaj   +1 more source

Porous Organic Polymers: From Molecular Design to Scalable Technologies

Small, EarlyView.
This review introduces porous organic polymers (POPs) for a wide range of applications, including energy storage, gas adsorption, catalysts, adsorbents, biomedical applications, sensors, and other exciting fields, and critically analyzes the synthesis and modification, and how structural topology influences the composites' architecture of POPs, along ...
Hossein Mashhadimoslem, Hadi Shayesteh, Simindokht Zarei‐Shokat, Rokhsareh Bakhtiari, Sheyda Abedi‐Banaei, Zahra Sheikhlouiharzand, Parnia Mohebimanesh, Seyed Mohammad Amin Ojagh, Bahareh Bakhtiari, Ali Maleki, Theo G. M. van de Ven, Sohrab Zendehboudi, Ali Elkamel   +12 more
wiley   +1 more source

Dimethyl‐, Diethyl‐, and Propylene Carbonates: An Emerging Class of Green Solvents for Organic Synthesis

The Chemical Record, EarlyView.
This review highlights recent advances in the use of organic carbonates, dimethyl carbonate (DMC), diethyl carbonate (DEC), and propylene carbonate (PC), as solvents in organic synthesis. Based on over seventy studies from the past 6 years, it shows their application in different organic reaction types, emphasizing their role in safer and more ...
Gabriela T. Quadros, Livia C. L. Valente, Thiago Barcellos, Daniela Hartwig, Laura Abenante, Eder J. Lenardão   +5 more
wiley   +1 more source

Pyridine C─N Transposition via Cycloaddition–Cycloreversion

Angewandte Chemie, Volume 138, Issue 29, 13 July 2026.
Transposition of pyridine nitrogen from the 4‐ to the 3‐position is described using two open and shut sequences: a nucleophile addition ring‐open ring‐closure, followed by a nitrile Diels–Alder cycloaddition cycloreversion. The nitrogen swap is particularly effective for tertiary alkyl substituents, transforming easily accessible para‐alkylated ...
Aífe Conboy, Michael F. Greaney
wiley   +2 more sources

Oxazole-Based Compounds: Synthesis and Anti-Inflammatory Studies

Chemistry Proceedings
A series of linear and angular naphthoxazoles bearing chlorophenyl or aminochlorophenyl substituents at position 2 of the tricyclic system were synthesized and their anti-inflammatory potential was evaluated.
Sofia Gomes, Daniela Correia da Silva, David M. Pereira, M. Sameiro T. Gonçalves   +3 more
doaj   +1 more source

Fish Sperm Subpopulations Detection, Separation, and Application: Current State and Trends

Reviews in Aquaculture, Volume 18, Issue 4, September 2026.
Modern advances in sperm biology highlight the necessity of recognising intra‐ejaculate heterogeneity as a central concept for advancing both the fundamental understanding of fertilisation processes and the development of artificial reproduction techniques in fishes. ABSTRACT Sperm subpopulations represent a fundamental manifestation of intra‐ejaculate
Viktoriya Dzyuba, William V. Holt, Borys Dzyuba   +2 more
wiley   +1 more source

Crystal structure of 3-benzylsulfanyl-6-(5-methyl-1,2-oxazol-3-yl)-1,2,4-triazolo[3,4-b][1,3,4]thiadiazole

Acta Crystallographica Section E: Crystallographic Communications, 2015
In the title compound, C14H11N5OS2, the triazolo–thiadiazole system is essentially planar (r.m.s. deviation = 0.002 Å) and makes dihedral angles of 6.33 (12) and 42.95 (14)° with the planes of the oxazole and phenyl rings, respectively.
Krishnaiah Vaarla, V. Rajeswar Rao, Mehmet Akkurt   +2 more
doaj   +1 more source

Actinomycin Derivatives: Structural Diversification and Biological Activities

ChemMedChem, Volume 21, Issue 15, 14 August 2026.
Actinomycins are chromopeptide antibiotics exhibiting remarkable structural diversity and broad bioactivity. This review traces their development from naturally occurring D‐, X‐, A‐, G‐, Y‐, and Z‐type analogs to precursor‐directed, synthetic, and semisynthetic derivatives.
Özge Can, Erdal Bedir
wiley   +1 more source

Microhydration Structures of Protonated Oxazole [PDF]

The Journal of Physical Chemistry A, 2019
The initial microhydration structures of the protonated pharmaceutical building block oxazole (Ox), H+Ox-Wn≤4, are determined by infrared photodissociation (IRPD) spectroscopy combined with quantum chemical dispersion-corrected density functional theory calculations (B3LYP-D3/aug-cc-pVTZ).
Kuntal Chatterjee, Otto Dopfer
openaire   +2 more sources

Accessing Heterocycle‐Containing Borazine Frameworks via C−H Functionalization Reactions of Heterocycles

European Journal of Organic Chemistry, Volume 29, Issue 29, 7 August 2026.
A Pd/Cu cooperative catalytic system enables the direct C–H functionalization of a diverse range of five‐membered and benzo‐fused heterocycles with iodinated hexaarylborazines, providing efficient access to previously inaccessible heterocycle‐functionalized borazines.
Fan Huang, Giulia Brufani, Ejdi Cela, Alireza Nazari Khodadadi, Dario Marchionni, Luigi Vaccaro   +5 more
wiley   +1 more source