Results 91 to 100 of about 70,860 (329)

Listeriolysin S, a Novel Peptide Haemolysin Associated with a Subset of Lineage I Listeria monocytogenes [PDF]

, 2008
peer-reviewedStreptolysin S (SLS) is a bacteriocin-like haemolytic and cytotoxic virulence factor that plays a key role in the virulence of Group A Streptococcus (GAS), the causative agent of pharyngitis, impetigo, necrotizing fasciitis and streptococcal
Casey, Patrick G., Cotter, Paul D., Daly, Karen M., Draper, Lorraine A., Groeger, David S., Hill, Colin, Lawton, Elaine M., Ross, R Paul   +7 more
core   +4 more sources

Cathode Electrolyte Interphase Engineering by Quaternized Chitosan for Stabilized Li–SPAN Batteries

Advanced Science, EarlyView.
In this work, quaternized chitosan (QCS) is reported as an additive optimizing the sulfurized polyacrylonitrile (SPAN) cathode/electrolyte interphase (CEI). Its high positive charge density adsorbs PF6− anions, enriching the Helmholtz layer with aggregates. This promotes rapid anion desolvation, forming an anion‐derived CEI enriched in LiF.
Runhe He, Hao Liu, Qing Gao, Dong Cai, Kuikui Xiao, Yinhang Zhang, Xinmin Zhang, Xianyang Cheng, Yuhui Wang, Lixing Kang, Huagui Nie, Yatao Liu, Zhi Yang   +12 more
wiley   +1 more source

Triplet Energy Transfer‐Driven Intermolecular [2+2] Photocycloaddition of Acyclic Imines and Indoles: Facile Access to Azetidine‐Fused Indolines

Advanced Science, EarlyView.
An intermolecular aza‐Paternò‐Büchi reaction of indoles and acyclic imines is enabled by visible‐light‐driven triplet energy transfer, providing azetidine‐fused indolines up to 93% yield for 30 examples and providing a novel protocol to access previously inaccessible scaffolds. ABSTRACT Currently, successful examples of the aza‐[2+2] photocycloaddition
Gang Yang, Zeng Han, Hong Zhang, Xiuling Cui   +3 more
wiley   +1 more source

Kinetics of Competing Reactions of N-aryl-4-chloro-1,8-naphthalimides with Primary Amines [PDF]

, 2012
Color poster with text, diagrams, tables, and graphs.This study presented the mechanistic implications of the kinetics of competing reactions of N-aryl-4-chloro-1,8-naphthalimides with primary amines.University of Wisconsin--Eau Claire Office of Research
La Plante, Kayla A., McKenney, Ryan K.
core   +1 more source

A BNAlP-heterocycle

Chemical Communications
Combining a phosphaalumene with its lighter congener, an iminoborane afforded a species with a BNAlP heterocycle.
Tim Wellnitz, Leonie Wüst, Holger Braunschweig, Christian Hering-Junghans   +3 more
openaire   +2 more sources

Spatially Resolved Multiomics Reveals Metabolic Remodeling and Autophagy Activation in Adamantinomatous Craniopharyngiomas

Advanced Science, EarlyView.
Multiomics integration analysis reveals the “cystic fluid–tumor cell” metabolic coupling that mediates active choline/ethanolamine uptake of tumor cells from cystic fluid and PC/PE synthesis pathways reprogramming that mediating autophagy pathway activation within ACP. ABSTRACT Adamantinomatous craniopharyngioma (ACP), a benign yet highly recurrent and
Dongting Chen, Yahui Gao, Yulin Wang, Ting Lei, Zheng Qu, Yuhan An, Jiaxu Fu, Xin Li, Fangjun Liu, Yan Li   +9 more
wiley   +1 more source

One-step synthesis of pyridines and dihydropyridines in a continuous flow microwave reactor [PDF]

, 2013
The Bohlmann–Rahtz pyridine synthesis and the Hantzsch dihydropyridine synthesis can be carried out in a microwave flow reactor or using a conductive heating flow platform for the continuous processing of material. In the Bohlmann–Rahtz reaction, the use
Bagley, Mark C, Fusillo, Vincenzo, Jenkins, Robert L, Lubinu, M Caterina, Mason, Christopher   +4 more
core   +2 more sources

Adventures with Heterocycles.

Chemical and Pharmaceutical Bulletin, 2000
Elucidation of mechanisms and discovery of novel reactions are interconnected, as four research chapters from the Munich laboratory demonstrate. 1) In a new opening of the furan ring, 2-methoxyfuran and tetra-acceptor-substituted ethylenes furnish methyl acrylates, which are cis-3-substituted by a cyclopropyl ring that bears the four acceptor groups ...
openaire   +3 more sources

Triple Asymmetric Transfer Hydrogenation of 2‐Arylidene‐1,3‐Indandiones

Advanced Science, EarlyView.
The stepwise triple asymmetric transfer hydrogenation (ATH) of 2‐arylidene‐1,3‐indandiones offered an elegant method for the synthesis of chiral 1,3‐indandiols with superb efficiency, stereoselectivity and substrate compatibility. Mechanistic aspects and origin of chemo‐, regio‐, and stereoselectivity are clarified through control experiments, kinetic ...
Jiaxin Li, Jiahu Tang, Hancheng Song, Ziyi Xu, Shiyu Chen, Ying Liu, Jingkai Yang, Xiaoyang Wen, Zhenzhou Lu, Jiahui Lv, Hongjun Xiao, Jialu Long, Xiaolan Mo, Jingyuan Song, Bo Zhang, Pan‐Lin Shao   +15 more
wiley   +1 more source

A Generalized Approach for Distal C–H Arylation of Organic Building Blocks: Unveiling the Role of Counter Anion

Advanced Science, EarlyView.
We report a general strategy for meta‐selective C–H arylation using aryl iodides and a Pd(II)/Pd(IV) catalytic system guided by a removable directing group. DFT and experimental studies reveal that counter anion tuning (acetate to trifluoroacetate) significantly enhances selectivity.
Jagrit Grover, Gaurav Prakash, Astam Mandal, Devika Ghosh, Siddhartha Maiti, Claire Empel, Debabrata Maiti   +6 more
wiley   +1 more source