Results 41 to 50 of about 7,050 (179)

Low‐Temperature in Situ Upgrading of Ultra‐Deep Heavy Oil Using Ni–Ce/MOF–OTf Superacid Catalysts to Enhance Energy Utilization and Sustainability

EcoEnergy, EarlyView.
A triflate‐functionalized Ni–Ce/MOF–OTf superacid enables low‐temperature (∼140°C) in situ upgrading of ultra‐deep heavy oil. It reduces viscosity by 92.11% in 12 h, maintains activity over cycles, and delivers 90.25% recovery with a lower carbon footprint by selective bond cleavage. ABSTRACT Ultra‐deep heavy oil is an important unconventional resource,
Li Wang, Ji‐Xiang Guo, Qiming Huang, Kunpeng Li, Chi Li, Yajie Wu   +5 more
wiley   +1 more source

Mesityl‐Substituted Azuleno[1′,2′:4,5]pyrrolo[2,3‐b]quinoxalines: Synthesis, Functionalization, Photophysical, and Electrochemical Properties

European Journal of Organic Chemistry, EarlyView.
Azuleno[1′,2′:4,5]pyrrolo[2,3‐b]quinoxaline with a mesityl group as a solubilizing group was synthesized. By synthesizing derivatives in which various functional groups were introduced into two electronically distinct sites, the pyrrole nitrogen atom and the azulene five‐membered ring, we were able to reveal that the photophysical and electrochemical ...
Ryuta Sekiguchi, Hiroki Mizuno, Ikumi Uchiyama, Souta Yuruka, Atsuya Shimizu, Taku Shoji, Shunji Ito   +6 more
wiley   +1 more source

Synthesis and Anti-inflammatory Activity of Some Novel 3-(6-Substituted-1, 3-benzothiazole-2-yl)-2-[{(4-substituted phenyl) amino} methyl] quinazolines-4 (3H)-ones

E-Journal of Chemistry, 2009
A series of novel 3-(6-substituted-1, 3-benzothiazole-2-yl)-2-[{(4-substituted phenyl) amino} methyl] quinazolines-4(3H)-ones were synthesized by treating 2-(chloromethyl)-3-(6-substituted-1, 3-benzothiazole-2-yl) quinazoline-4-(3H)-one (IIa-d) with ...
Manish Srivastav, MD. Salahuddin, S. M. Shantakumar   +2 more
doaj   +1 more source

Synthesis of 2,4-disubstituted quinazolines promoted by deep eutectic solvent

Current Research in Green and Sustainable Chemistry, 2021
An efficient deep eutectic solvent (DES) promoted reaction of 2-amino-5-chlorobenzophenone, aromatic aldehydes (benzoyl alcohols) and ammonium acetate leading to the formation of quinazolines with excellent yields is described.
Rajkumar Romeshkumar Singh, Thokchom Prasanta Singh, Thangjam Linda Devi, Thokchom Jeeta Devi, Okram Mukherjee Singh   +4 more
doaj   +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

Covalent drug discovery: Progress against key targets, emerging strategies and lessons learnt

British Journal of Pharmacology, EarlyView.
Abstract Covalent drug discovery is currently experiencing a boom in industrial and academic interest. To date, at least 75 covalent drugs have received regulatory approval, targeting both traditional target classes and more challenging proteins for which other approaches failed. In many cases, unique aspects of covalent targeting are essential for the
Charles P. Brown, Alan Armstrong, David J. Mann   +2 more
wiley   +1 more source

Molecular Docking and Anticonvulsant Activity of Newly Synthesized Quinazoline Derivatives

Molecules, 2017
A new series of quinazoline-4(3H)-ones are evaluated for anticonvulsant activity. After intraperitoneal (ip) injection to albino mice at a dose of 100 mg/kg body weight, synthesized quinazolin-4(3H)-ones (1–24) were examined in the maximal electroshock ...
Hatem A. Abuelizz, Rabab El Dib, Mohamed Marzouk, El-Hassane Anouar, Yousreya A. Maklad, Hanan N. Attia, Rashad Al-Salahi   +6 more
doaj   +1 more source

circMAN1A2 as an Isoform‐Resolved Circular RNA Hub in Cancer

Cancer Science, EarlyView.
circMAN1A2 as an isoform‐resolved circular RNA hub in cancer. circMAN1A2 is generated by back‐splicing of MAN1A2 pre‐mRNA, with alternative circularization producing multiple isoforms, including the predominant circMAN1A2(2–5). Its mechanistic interfaces include miRNA‐associated regulation, RBP binding/proteostasis control, BSJ‐mediated RNA–RNA pairing,
Hanyu Shang, Hui Wang, Yonghang Xu, Lingyun Geng, Yanqing Wang   +4 more
wiley   +1 more source

Behavioural Response of Triatoma infestans (Klug) (Hemiptera: Reduviidae) to Quinazolines

Molecules, 2005
The behavioural responses of the haematophagous bug Triatoma infestans towards some previously identified components of its faeces: 4-methylquinazoline, 2,4- dimethylquinazoline and their mixtures were evaluated using a video tracking system.
E. Zerba, A. Cork, D. Fernández, P. Santo Orihuela, H. Masuh, F. Camps, A. Fontán, R. A. Alzogaray   +7 more
doaj   +1 more source

A Curcumin‐Derived HSP70 Inhibitor Disrupts Lysosomal Function to Suppress Triple‐Negative Breast Cancer Progression

Cell Proliferation, EarlyView.
Novel curcumin‐derived M4 binds HSP70's ATPase domain, disrupting HSP70‐mediated lysosomes‐autophagy pathway to inhibit TNBC growth and metastasis, and synergizes with paclitaxel for potent combination therapy. ABSTRACT Structural modification of curcumin yielded a novel series of 1,4‐pentadien‐3‐one oxime ether derivatives, among which compound M4 ...
Zijian Li, Wanxia Wang, Yuxin Zhou, Tao Zeng, Jian Liu, Yingjie Qing, Xuan Han   +6 more
wiley   +1 more source