Results 71 to 80 of about 34,696 (235)

Enantioselectivity in Transition Metal Catalyzed Propargylic Substitution Reactions: A Theoretical Perspective

Chemistry – A European Journal, EarlyView.
Recent theoretical efforts to elucidate the origin of enantioselectivity in transition metal‐catalyzed propargylic substitution reactions are highlighted in this review. ABSTRACT In recent years, asymmetric catalytic propargylic substitution reactions have undergone remarkable development, enabling the construction of chiral carbon centers adjacent to ...
Ken Sakata, Yoshiaki Nishibayashi
wiley   +1 more source

XỬ LÝ RA HOA TRÁI VỤ XOÀI CHÂU HẠNG VÕ BẰNG PACLOBUTRAZOL VÀ THIOUREA

Tạp chí Khoa học Đại học Cần Thơ, 2004
Thí nghiệm được bố trí theo thể thức khối hoàn toàn ngẫu nhiên với 4 lần lặp lại. Có 4  nghiệm thức bao gồm: (1) phun Thiourea nồng độ 0,5% vào tháng 11; (2) phun Thiourea nồng độ 0,5% vào tháng 8; (3) phun Thiourea 0,5% vào tháng 8 sau khi tưới ...
Nguyễn Việt Khởi, Nguyễn Bảo Vệ   +1 more
doaj  

Crystal structure of N,N′-[(ethane-1,2-diyl)bis(azanediylcarbonothioyl)]bis(benzamide)

Acta Crystallographica Section E: Crystallographic Communications, 2019
The reaction of benzoyl chloride and ethylendiamine in the presence of potassium thiocyanate yielded a white solid, C18H18N4O2S2, which consists of two benzoylthioureido moieties connected by an ethylene chain. The asymmetric unit consists of one half of
Issa Samb, Nango Gaye, Rokhaya Sylla-Gueye, Elhadj Ibrahima Thiam, Mohamed Gaye, Pascal Retailleau   +5 more
doaj   +1 more source

Bifunctional Photocatalysts: Exploiting Proximity for Enhanced Reaction Performance

Chemistry – A European Journal, EarlyView.
This review covers the application of the bifunctional approach to photocatalysis as a means to attain (enhanced) enantioselectivity, and, more in general, as a strategy to enhance the catalytic performance through an effective use of short‐lived reaction intermediates.
Luigi Dolcini, Daniele Lavelli, Alberto Dal Corso, Luca Pignataro   +3 more
wiley   +1 more source

Synthesis, biological activity and multiscale molecular modeling studies for coumaryl-carboxamide derivatives as selective carbonic anhydrase IX inhibitors

Journal of Enzyme Inhibition and Medicinal Chemistry, 2017
New coumaryl-carboxamide derivatives with the thiourea moiety as a linker between the alkyl chains and/or the heterocycle nucleus were synthesized and their inhibitory activity against the human carbonic anhydrase (hCA) isoforms hCA I, II, VII and IX ...
Belma Zengin Kurt, Fatih Sonmez, Serdar Durdagi, Busecan Aksoydan, Ramin Ekhteiari Salmas, Andrea Angeli, Mustafa Kucukislamoglu, Claudiu T. Supuran   +7 more
doaj   +1 more source

Engineering Lipid Nanoparticles for Precision RNA Delivery: Design Principles, Targeting Strategies, and Clinical Prospects

Cancer Nexus, EarlyView.
ABSTRACT Lipid nanoparticles (LNPs) represent the most clinically advanced platform for RNA delivery and have enabled major breakthroughs in vaccines and gene therapies. However, their broader application is still limited by inefficient extrahepatic delivery, immunogenicity, and insufficient control over tissue‐ and cell‐specific targeting. This review
Yu Han, Ying Wang, Xintao Gao, Yan Lei, Yantao Li, Zhiyong Tang   +5 more
wiley   +1 more source

Effects of Thiourea on the Corrosion of Low Carbon Steel in Hydrochloric Acid Solution

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
The c.orrosion rate of  low carbon  steel  in 4M  hydrochlwic acid with and without  presence of thiourea has b.een studied  by gravimetric ahd gasometric methods  over the temperature range 303-333 K.
I. D. SuUiman
doaj  

Stabilization of Pd Active Sites by Defective NaY Zeolite Framework for Enhanced Stability in Dimethyl Carbonate Synthesis

EcoEnergy, EarlyView.
A tailored‐defect strategy employing sequential high‐temperature calcination and acetylacetone treatment was developed to generate framework defects in NaY zeolite while preventing the formation of strong acid sites. These defects facilitate electron transfer from Pd to the zeolite framework and stabilize the Pd2+ active sites, thereby conferring ...
Chunzheng Wang, Rongyan Mei, Shicheng Yuan, Yida Zhou, Yipu Xu, Xianglong Meng, Longgang Tao, Shutao Xu, Hailing Guo, Svetlana Mintova   +9 more
wiley   +1 more source

Effect of Foliar Application of Thiourea on the Growth, Yield and Economics of Soybean (Glycine max L.)

International Journal of Bio-Resource and Stress Management
A field experiment was conducted during kharif (June–October), 2020 at the MARS, UAS, Dharwad, Karnataka, India to study the influence of thiourea as foliar spray on soybean under the Northern Transition Zone of Karnataka under rainfed condition.
Prema Sunkad, G. Somanagouda, R. Channakeshva, U. Roopa, Nagesh Rathod   +4 more
doaj   +1 more source

Thermodynamic Mechanisms of Co‐S Bond Anchoring in Few‐Layered 1T‐MoS2 for Enhanced Capacitive Performance via Spin State Regulation and Ion Diffusion Kinetics

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
The one‐pot hydrothermal prep of Co‐doped few‐layer 1T‐MoS2 shows Co‐S bonds stabilizing the 1T phase, enhancing supercapacitor performance. Few‐layered 1T‐MoS2 is highly promising for supercapacitor applications due to its wide interlayer spacing, high electrical conductivity, and abundant active sites.
Qingling Jia, Han Li, Shun Lu, Chuanyin Xiong, Yongxing Zhang   +4 more
wiley   +1 more source