Results 71 to 80 of about 191,241 (287)

Proton‐Coupled Electron Transfer Processes in the Decarboxylative Synthesis of C‐4 Substituted Chroman‐2‐Ones

Advanced Synthesis &Catalysis, EarlyView.
This research presents a new mild photocatalytic method enables C‐4 alkylation of chroman‐2‐one derivatives with primary alkyl radicals. This radicals are generated via oxidative PCET process. Developed approach offers broad substrate scope, scalability under photo‐flow conditions, and mechanistic evidence supports a decarboxylation pathway under polar
Ewelina Kowalska, Benedetta Carli, José Alemán, Leyre Marzo, Anna Albrecht   +4 more
wiley   +1 more source

Active species in chloroaluminate ionic liquids catalyzing low-temperature polyolefin deconstruction

Nature Communications
Chloroaluminate ionic liquids selectively transform (waste) polyolefins into gasoline-range alkanes through tandem cracking-alkylation at temperatures below 100 °C.
Wei Zhang, Rachit Khare, Sungmin Kim, Lillian Hale, Wenda Hu, Chunlin Yuan, Yaoci Sheng, Peiran Zhang, Lennart Wahl, Jiande Mai, Boda Yang, Oliver Y. Gutiérrez, Debmalya Ray, John Fulton, Donald M. Camaioni, Jianzhi Hu, Huamin Wang, Mal-Soon Lee, Johannes A. Lercher   +18 more
doaj   +1 more source

Mitosene-DNA adducts. Characterization of two major DNA monoadducts formed by 1,10-bis(acetoxy)-7-methoxymitosene upon reductive activation [PDF]

, 1997
Reductive activation of racemic 1,10-bis(acetoxy)-7-methoxymitosene WV15 in the presence of DNA, followed by enzymatic digestion and HPLC analysis, revealed the formation of various DNA adducts.
Duynhoven, John P.M. van, Gargiulo, Dario, Janssen, Lambert H.M., Maliepaard, Marc, Mol, Nico J. de, Reinhoudt, David N., Tomasz, Maria, Velzen, Ewoud J.J. van, Verboom, Willem   +8 more
core   +2 more sources

5’‐Methylthioadenosine Metabolic Reprogramming Drives H3K79 Monomethylation‐Mediated PAK2 Upregulation to Promote Cadmium‐Induced Breast Cancer Progression by Impairing Autophagic Flux

Advanced Science, EarlyView.
Cadmium, a carcinogenic heavy metal, drives breast cancer progression via metabolic reprogramming and autophagic flux disruption. Multi‐omics revealed cadmium‐induced 5'‐methylthioadenosine depletion activates DOT1L‐mediated H3K79me1 at PAK2 promoter, upregulating PAK2 to block autophagy and driving malignancy. Clinically, 5'‐methylthioadenosine levels
Jingdian Li, Ping Deng, Tengfei Fan, Yuchen Qu, Miduo Tan, Yidan Liang, Peng Gao, Yongchun Peng, Mingke Qin, Sheng Jie, Rongrong Hao, Liting Wang, Lei Zhang, Chunhai Chen, Mindi He, Qinlong Ma, Yan Luo, Li Tian, Jia Xie, Mengyan Chen, Rui Tian, Min Li, Zhengping Yu, Zhou Zhou, Huifeng Pi   +24 more
wiley   +1 more source

Synthesis, Molecular Structure and Reactivity of 5-Methylidene-1,2,3,5-tetrahydroimidazo[2,1-b]quinazolines

Molecules, 2004
Synthesis of novel 5-methylidene-1,2,3,5-tetrahydro[2,1-b]-quinazolinederivatives 2-4 with potential biological activities mediated by α-adrenergic and/orimidazoline receptors was performed by reacting 2-chloro-4,5-dihydroimidazole (1) withthe ...
Maria Gdaniec, Franciszek Sączewski, Anita Kornicka   +2 more
doaj   +1 more source

Conducting polymer wires in mesopore hosts [PDF]

, 1994
Nanometer-size conducting structures are of great interest in view of fundamental issues and potential applications. We explore the inclusion chemistry of conjugated polymers and graphite-like materials as a means to create such structures.
Beck, Bein, Bein, Cai, Cox, Dube, Enzel, Enzel, Enzel, Enzel, Furukawa, Javadi, Lapkowski, MacDiarmid, Millar, Renschler, Shacklette, Sonobe, Wang, Zuppiroli   +19 more
core   +1 more source

Adamts1 Exacerbates Post‐Myocardial Infarction Scar Formation via Mechanosensing of Integrin α8

Advanced Science, EarlyView.
Proposed mechanistic model of ADAMTS1‐ITGα8 mechanotransduction in post‐MI scar formation. Schematic illustration showing the mechanistic pathway by which endothelial cell (EC) derived Adamts1 regulates cardiac fibroblast activation through ITGα8‐mediated mechanotransduction following myocardial infarction (MI).
Chun‐Yan Kong, Zhen Guo, Yu‐Lan Ma, Ming‐Yu Wang, Hai‐Yang Ni, Pan Wang, Wen‐Jun Qiu, En‐Gui Wang, Zhou Li, Zheng Yang, Bo Shen, Qi‐Zhu Tang   +11 more
wiley   +1 more source

Use of genetic algorithms and gradient based optimization techniques for calcium phosphate precipitation [PDF]

, 2004
Phase equilibrium computations constitute an important problem for designing and optimizing crystallization processes. The Gibbs free energy is generally used as an objective function to find phase amount and composition at equilibrium. In such problems,
C. Azzaro-Pantel, Chung, Dantzig, L. Montastruc, L. Pibouleau, McDonald, Montastruc, Montastruc, Paynes, S. Domenech, Sauer, White   +11 more
core   +1 more source

Intrinsic Photo‐Crosslinkable Semiconductive Small‐Molecule Crystals (i‐PSSCs) for Patterning Electronic Devices

Advanced Science, EarlyView.
A novel intrinsic photo‐crosslinkable semiconductive small molecule is designed and synthesized. The solution‐processed crystalline film can be patterned by in situ photopolymerization under UV light irradiation without external crosslinking agents, and the crystalline order and charge transport properties are preserved, demonstrating potential for ...
Huaqing Li, Xiaoguang Hu, Lei Zhang, Qingqing Sun, Chuan Liu, Linlin Zhang, Takeo Minari, Xuying Liu   +7 more
wiley   +1 more source

Lactylation of HMGB1 at K177 Drives Nuclear Export of TIAR to Promote Hypoxia‐Induced Stress Granule Formation

Advanced Science, EarlyView.
This study uncovers a novel mechanism in which p300‑catalyzed lactylation of HMGB1 triggers nuclear export of the HMGB1‐TIAR complex, driving TIAR‐dependent SGs formation in the cytoplasm. Mass spectrometry and mutagenesis reveals that K177 lactylation is essential for this export and subsequent SGs formation.
Chengyu Li, Zhaojun Liu, Linjie Zhu, Gang Wu, Chen Fu, Hongmin Li, Tong He, Ming Shen, Honglin Liu   +8 more
wiley   +1 more source