Results 241 to 250 of about 349,221 (347)

Transition-state aromaticity and its relationship with reactivity in pericyclic reactions. [PDF]

Beilstein J Org Chem
Fernández I.
europepmc   +1 more source

Early to Mid‐Holocene Cool Temperature‐Induced Drought in Asian Interior

Geophysical Research Letters, Volume 53, Issue 4, 28 February 2026.
Abstract Hydroclimatic variations in mid‐latitude Asia during the early to mid‐Holocene and associated mechanisms remain disputed, hampering our understanding of atmospheric circulation controls on regional climatic changes. We report Holocene alkenone records from two Siberian lakes, documenting lake temperature and hydrological changes, and ...
Jiawei Jiang, Huanye Wang, Hu Liu, Guoqiang Chu, Weiguo Liu, Sergey Krivonogov, Zhonghui Liu   +6 more
wiley   +1 more source

Chemoselectivity in the cationic Phospha-Wittig reaction: accessing phosphorus heterocycles, phosphaalkenes, and their annulated [4 + 2] dimers. [PDF]

Chem Sci
Royla P, Schwedtmann K, Gomila RM, Frontera A, Weigand JJ.   +4 more
europepmc   +1 more source

Cyclacene Stability: The Interplay of Strain, Aromaticity and Force Coupling

Journal of Computational Chemistry, Volume 47, Issue 5, 15 February 2026.
Cyclacene stability arises from a balance between structural strain and aromaticity. Strain‐corrected heats of hydrogenation reveal that cyclacene thermodynamic stability is governed primarily by ring strain rather than aromatic stabilization.
Ankit Somani, Divanshu Gupta, Jörg Grunenberg, Holger F. Bettinger   +3 more
wiley   +1 more source

An Expanded Toolbox for Versatile Chemical Editing of Adeno‐Associated Virus

Angewandte Chemie, Volume 138, Issue 7, 9 February 2026.
We describe technology to introduce diverse non‐natural chemical functionalities site‐specifically into the capsid of adeno‐associated virus through genetic code expansion, and using them to engineer this leading vector for human gene therapy for enhanced tissue specificity and reduced immunogenicity Abstract Site‐specific incorporation of noncanonical
Quan Pham, Jake Glicksman, Boyang Han, David Koo, Conor Loynd, Soumya Jyoti Singha Roy, Abhishek Chatterjee   +6 more
wiley   +2 more sources

Enhanced Reactivity for the Wagner-Jauregg Reaction Under Aqueous Conditions. [PDF]

ACS Omega
Barton K, Smith C, Tartakoff SA, Stasio J, Rothe E, Dickhens L, Hill AD, Tartakoff SS.   +7 more
europepmc   +1 more source

Direct Identification and Quantification of Flavonoids and Their Structural Isomers Using Ambient Ionization Tandem Mass Spectrometry

Rapid Communications in Mass Spectrometry, Volume 40, Issue 3, 15 February 2026.
ABSTRACT Rationale Flavonoids are phenolic compounds with many health‐benefiting properties. However, differentiating different types of flavonoids and their isomers is challenging due to their highly similar structures of various subtypes and different numbers and sites of substituents.
Yanqiu Wang, Liping Xu, Tiange Gu, Hongli Li, David Da Yong Chen   +4 more
wiley   +1 more source

Oriented Electric Fields─Universal Catalysts. [PDF]

Acc Chem Res
Shaik S, Danovich D, Kalita S, Dubey KD.
europepmc   +1 more source

Design, Synthesis, and Biological Evaluation of Pseudo‐Natural Products Inspired by Aryloctahydroindole Alkaloids

ChemMedChem, Volume 21, Issue 3, 12 February 2026.
Mesembrine alkaloid pseudo‐natural products were synthesized employing a microwave‐assisted Diels–Alder reaction as a key step. Morphological profiling by cell painting revealed compound‐topology‐dependent mitochondrial fragmentation or inhibition of respiration.
Luca C. Greiner, Freddy A. Bernal, Sasikala Thavam, Maite Brachthäuser, Sonja Sievers, Slava Ziegler, Herbert Waldmann   +6 more
wiley   +1 more source

A Concise Total Synthesis of (+)-Pedrolide. [PDF]

J Am Chem Soc
Shen H, Zhou Y, Wood JL.
europepmc   +1 more source