Results 61 to 70 of about 52,647 (305)

KleTy: integrated typing scheme for core genome and plasmids reveals repeated emergence of multi-drug resistant epidemic lineages in Klebsiella worldwide

Genome Medicine
Background Clinically important lineages in Klebsiella, especially those expressing multi-drug resistance (MDR), pose severe threats to public health worldwide.
Heng Li, Xiao Liu, Shengkai Li, Jie Rong, Shichang Xie, Yuan Gao, Ling Zhong, Quangui Jiang, Guilai Jiang, Yi Ren, Wanping Sun, Yuzhi Hong, Zhemin Zhou   +12 more
doaj   +1 more source

Cyclization–endoperoxidation cascade reactions of dienes mediated by a pyrylium photoredox catalyst

Beilstein Journal of Organic Chemistry, 2014
Triarylpyrylium salts were employed as single electron photooxidants to catalyze a cyclization–endoperoxidation cascade of dienes. The transformation is presumed to proceed via the intermediacy of diene cation radicals.
Nathan J. Gesmundo, David A. Nicewicz
doaj   +1 more source

Alkene-Stabilized Biradical and Zwitterionic Photoproducts of the Clusters [Os₃(CO)₁₀(α-diimine)]:  A Time-Resolved Transient Absorption and Infrared Study

, 2016
This work focuses on photochemical Os−Os bond cleavage in the cluster [Os3(CO)10(i-Pr-AcPy)] (i-Pr-AcPy = 2-acetylpyridine-N-isopropylimine), producing the biradical [(CO)4Os•−Os(CO)4−Os+(CO)2(i-Pr-AcPy•-)].
M. J. Bakker (3076902), D. J. Stufkens (3076899), X.-Z. Sun (3076896), O. S. Jina (3076893), F. Hartl (3006246), M. W. George (2523001)   +5 more
core   +1 more source

Phase Engineering of Nanomaterials (PEN): Evolution, Current Challenges, and Future Opportunities

Advanced Materials, EarlyView.
This review summarizes the synthesis, phase transition, advanced characterization spanning ex situ to in situ and operando techniques, and diverse applications of phase engineering of nanomaterials (PEN). It further outlines key challenges and future opportunities, such as phase stability, architecture control, and artificial intelligence (AI)‐driven ...
Ye Chen, Zhanxi Fan, Jingjie Ge, Qiyuan He, Zhuangchai Lai, Jiawei Liu, Chaoliang Tan, Hua Zhang   +7 more
wiley   +1 more source

Recent Advances in the High-Value Conversion of Alkenes Induced by Electrochemistry

Molecules
Over the past few decades, electrosynthesis has advanced significantly, enabling numerous valuable transformations for synthetic chemists. Olefins are inexpensive, readily available industrial feedstocks extensively used in organic synthesis.
Xing’an Liang, Haolin Wang, Wei Xie, Zhenhua Liu, Dongmiao Qin   +4 more
doaj   +1 more source

Remarkable Alkene-to-Alkene and Alkene-to-Alkyne Transfer Reactions of Selenium Dibromide and PhSeBr. Stereoselective Addition of Selenium Dihalides to Cycloalkenes

Molecules, 2020
The original goal of this research was to study stereochemistry of selenium dihalides addition to cycloalkenes and properties of obtained products. Remarkable alkene-to-alkene and alkene-to-alkyne transfer reactions of selenium dibromide and PhSeBr were ...
Vladimir A. Potapov, Maxim V. Musalov, Evgeny O. Kurkutov, Vladimir A. Yakimov, Alfiya G. Khabibulina, Maria V. Musalova, Svetlana V. Amosova, Tatyana N. Borodina, Alexander I. Albanov   +8 more
doaj   +1 more source

Iron-mediated ligand-to-metal charge transfer enables 1,2-diazidation of alkenes

Nature Communications, 2022
Alkene diazidations represent a promising strategy for the synthesis of 1,2-diamines. Here, the authors report a protocol that enables alkene diazidation via iron-mediated ligand-to-metal charge transfer, providing a versatile platform to access ...
Muliang Zhang, Jinghui Zhang, Qingyao Li, Yumeng Shi   +3 more
doaj   +1 more source

Alkene Dicarbofunctionalisation via High-Valent Nickel Catalysis [PDF]

Great advances have been made by leveraging high-valent Pd(II)/Pd(IV) catalysis in the areas of C–H activation and alkene difunctionalisation, thus representing a powerful approach for the construction of carbon-carbon and carbon-heteroatom bond. However,
Dao-Ming, Wang, Yichen, Wu, Peng, Wang, Li-Qin, She, Yong, Tang, Yu-Qing, He   +5 more
core   +2 more sources

Alkene/Alkyne Chemistry #1 [PDF]

, 2015
A mechanism and a synthesis problem related to alkene and alkyne chemistryTwo problems related to alkene and alkyne ...
Snyder, John K.
core   +1 more source

Hydrophobic MFI‐Type Zeolites via Alkali‐Cation‐Induced Defect Healing: Implications for Adsorbent and Catalyst Design

Advanced Materials, EarlyView.
Sub‐stoichiometric amounts of Na+ or K+ enhance defect healing during Silicalite‐1 (MFI) and TS‐1 calcination by promoting Si–O–Si annealing and healing framework vacancies. The resulting defect‐free zeolites are more hydrophobic and show improved butanol/water separation and improved activity and selectivity in the epoxidation of 1‐hexene, offering a ...
Christos Kanteler, Pau Ferri, Francisco Javier Escobar‐Bedia, Álvaro Mayoral, Alejandro Vidal‐Moya, Richard Kendra, Chen Lei, Miguel Palomino, Fernando Rey, Lukáš Grajciar, Christopher James Heard, Pedro Serna, Mercedes Boronat, Cristina Martínez, Manuel Moliner   +14 more
wiley   +1 more source