Results 121 to 130 of about 9,273,531 (285)

Drought Stress Mediated Changes in Food Crops: Mechanisms and Remediation Strategies

Advanced Science, EarlyView.
This work presents a multi‐scale framework for flavonoid‐mediated drought tolerance in staple food crops, integrating ROS redox regulation, antioxidant defense, rhizosphere microbial interactions, and sustainable agronomic practices. This interdisciplinary model provides core insights to develop climate‐resilient cropping systems and enhance global ...
Xiaoyi Duan, Litao Wang, Tuuli‐Marjaana Koski, Lizhe An, Thomas Efferth, Yujie Fu   +5 more
wiley   +1 more source

Enantioselective Access to Trifluoromethylated Spirocyclopropyl Heterocycles

Advanced Science, EarlyView.
We report a rhodium‐catalyzed asymmetric [2+1] spirocyclopropanation of methylene azacycles with trifluoromethyl carbenes in situ derived from fluoroalkyl triftosylhydrazones. ABSTRACT Chiral spirocyclopropyl heterocycles have emerged as privileged three‐dimensional structural motifs in medicinal chemistry.
Yuanhao Zhu, Youzhi Xu, Weitao Zhang, Yongyue Ning, Yaojia Jiang, Yongquan Ning, Genping Huang, Jiawei Cheng, Paramasivam Sivaguru, Xihe Bi   +9 more
wiley   +1 more source

Substituent Effects on the Gas Phase Stabilities of Phenylamino Anions [PDF]

, 2010
Relative gas phase stabilities of ring substituted phenylamino anions were theoretically determined using proton transfer equilibria. Substituent effects of these anions were compared with one another to discuss what kinds of electronic effects are ...
西本 吉助, 中田 和秀, 藤尾 瑞枝, 都野 雄甫   +3 more
core  

Origin of Enhanced Efficiency and Reduced Roll‐Off in Organic Light‐Emitting Diodes Based on Pt(II) Complexes

Advanced Science, EarlyView.
Controlled Pt–Pt fine structure in square‐planar Pt(II) complexes governs metal–metal‐to‐ligand charge‐transfer (MMLCT) state formation, exciton dynamics, and organic light‐emitting diode performance. Short Pt–Pt contacts in Pt(fppz)2 enable coherent metal–metal coupling, sub‐microsecond emission and an external quantum efficiency of 29%, whereas ...
Atul Shukla, Sarah K. M. McGregor, Julian A. Steele, Innes K. Gale, Kiyoshi Miyata, Monirul Hassan, Christian McDonald, Romain J. Lepage, Eduardo Solano, Pilankatta K. Ramya, Cherumuttathu H. Suresh, Takumi Ehara, Chihaya Adachi, Ken Onda, Shih‐Chun Lo, Ebinazar B. Namdas   +15 more
wiley   +1 more source

Dual Nickel/Photoredox‐Catalyzed Regio‐ and Enantioselective Alkenylation of Epoxides

Advanced Science, EarlyView.
Ni/photoredox‐catalyzed stereoconvergent cross‐electrophile coupling of racemic epoxides with alkenyl bromides is described, affording β‐alkenyl products with up to 95% ee, excellent E‐selectivity, and complete regiocontrol. These versatile intermediates enable diverse chiral synthons; mechanistic studies suggest a halide ring‐opening followed by ...
Hongyan Lan, Shengzhou Jin, Zhao‐Dong Xu, Guigen Li, Dingyi Wang   +4 more
wiley   +1 more source

SUBSTITUENT EFFECTS IN ACETOXYMERCURATION OF ARYL(TRIMETHYLSILYL)ETHYNES

Main Group Metal Chemistry, 1999
Floris, Barbara, Toppi, Luca
doaj   +1 more source

A Unified Hierarchical Multiscale Fusion Framework for Drug–Target Affinity Prediction: From Benchmark Performance to Nanomolar Inhibitor Discovery

Advanced Science, EarlyView.
A multimodal fusion framework integrating sequence, atomic, and fragment representations captures drug–target interactions across multiple scales. The model delivers strong predictive performance and enables efficient virtual screening. Applied to hematopoietic progenitor kinase 1 (HPK1), it identifies structurally diverse inhibitors with nanomolar ...
Shuo Liu, Xiang Zhang, Haixia Feng, Yuquan Li, Xiaoqing Gong, Yong Liang, Xiaojun Yao, Huanxiang Liu   +7 more
wiley   +1 more source

Lone‐Pair Shielded Radicals: Beyond the Captodative Substitution Pattern

ChemistryEurope
We have quantum chemically analyzed how substituents R affect the carboncarbon bond strength in 1,2‐disubstituted ethane, RH2CCH2R (R = H, CH3, NH2, OH, F), using density functional theory.
Steven E. Beutick, Maarten J. H. van Dorp, Trevor A. Hamlin, J. Martijn van der Schuur, Daniela Rodrigues Silva, F. Matthias Bickelhaupt   +5 more
doaj   +1 more source

AS‐TLC‐Based High‐Throughput Screening Integrated with CuAAC Optimization Strategy Facilitates the Rapid Discovery of YTHDC1 Inhibitor

Advanced Science, EarlyView.
We developed Affinity Selection Thin‐Layer Chromatography (AS‐TLC) as a method for high‐throughput screening (HTS) of compound mixtures. Furthermore, we integrated activity assays with AS‐TLC and identified a YTH domain‐containing protein 1 (YTHDC1) inhibitor. Building on this hit, we applied copper(I)‐catalyzed azide–alkyne cycloaddition (CuAAC) click
Mingchen Wang, Shuiping Fu, Ye Xu, Jia Gao, Jiwei Ren, Xu Yang, Hesong Xu, Ge Sun, Yanjie Li, Yanlin Wang, Lu Jin, Peijuan Chen, Ying Xu, Jianhao Li, Hua Lin, Chujiao Hu, Kaixian Chen, Huan Xiong, Cheng Luo, Shijie Chen   +19 more
wiley   +1 more source

Perylenediimide-Based Hybrid Materials for the Iodoperfluoroalkylation of Alkenes and Oxidative Coupling of Amines: Bay-Substituent-Mediated Photocatalytic Activity

Inorganic–organic donor–acceptor hybrid compounds are an emerging class of multifunctional crystalline materials with well-defined structures built from semiconductive inorganic and organic components.
Chao Li (145513), Zhengfen Liu (8842586), Jian-Jun Liu (88308), Wenxiu Yin (14129895), Feixiang Cheng (671205), Jian Chen (15340), Xiaobo Li (118828)   +6 more
core   +1 more source