Results 131 to 140 of about 12,336 (293)

Zinc Promoted Cross‐Electrophile Sulfonylation to Access Alkyl–Alkyl Sulfones

Advanced Science
The transition metal‐catalyzed multi‐component cross‐electrophile sulfonylation, which incorporates SO2 as a linker within organic frameworks, has proven to be a powerful, efficient, and cost‐effective means of synthesizing challenging alkyl–alkyl ...
Zhuochen Wang, Rui Ma, Chang Gu, Xiaoqian He, Haiwei Shi, Ruopeng Bai, Renyi Shi   +6 more
doaj   +1 more source

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

Manganese-catalyzed cyclopropanation of allylic alcohols with sulfones

Nature Communications
Cyclopropanes are among the most important structural units in natural products, pharmaceuticals, and agrochemicals. Herein, we report a manganese-catalyzed cyclopropanation of allylic alcohols with sulfones as carbene alternative precursors via a ...
Ke Yu, Qin Nie, Qianjin Chen, Weiping Liu   +3 more
doaj   +1 more source

Atropisomerism in biaryl sulfides and sulfones

, 2009
The thesis describes research carried out on the synthesis and asymmetric synthesis of atropisomeric biaryl sulfides and sulfones. Chapter one describes synthetic strategies employed in the synthesis of biaryl sulfides and sulfones.
Senior, James Daniel
core  

Crystal Orientation Regulation and Dynamic Protection via Dual Interface Engineering for Dendrite‐Free Zinc Deposition

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A dual‐interface engineering strategy is innovatively proposed to achieve dendrite‐free Zn anodes through crystallographic orientation regulation and adaptive interfacial protection. By pre‐coating eco‐friendly di‐pentaerythritol, horizontal growth of ZHS along the (001) plane is induced, which in turn guides epitaxial Zn deposition on the (002) plane.
Xin Wu, Ruiqian Li, Yujie Cao, Zixian Zhu, Zhengye Yang, Menghao Xia, Hongwei Kang, Huizhu Yu, Rencheng Jin   +8 more
wiley   +1 more source

Novel Zwitterionic Polydopamine Nanofiller‐Reinforced Hybrid Membranes With Superior Antifouling Performance for Wastewater Treatment

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
This work reports one‐pot synthesized novel zwitterionic polydopamine‐silica (ZSiPDA) nanofillers for fabricating PES hybrid ultrafiltration membranes with enhanced hydrophilicity, permeability, and antifouling performance. The optimized membrane achieved over 91% humic acid removal and showed strong potential for municipal wastewater treatment.
Roqaya A. Ismail, Mahendra Kumar, Tarek Lemaoui, Inas M. AlNashef, Shadi W. Hasan, Hassan A. Arafat   +5 more
wiley   +1 more source

Arylselenovinyl sulfones: II. Addition of benzeneselenols to aryl ethynyl sulfones

, 2020
Depending on the solvent nature, addition of benzeneselenols to aryl ethynyl sulfones leads to formation of a mixture of (E)- and (Z)-1-arylseleno-2-arylsulfonylethenes and 1-arylseleno-1-arylsulfonylethenes (in carbon tetrachloride and cyclohexane) or ...
Berdnikov E., Mannafov T.
core  

1,1‐Disubstituted Vinylbromides: Versatile Building Blocks for the Synthesis of Nitrogen‐Containing Heterocycles

European Journal of Organic Chemistry, EarlyView.
1,1‐Disubstituted vinylbromides are key intermediates for constructing nitrogen‐containing heterocycles. This review provides an overview of the synthetic applications of 1,1‐disubstituted vinylbromides and summarizes recent developments in reaction methodologies, mechanistic insights, and the structural diversity of N‐heterocyclic compounds accessible
Anne Westermeyer, Jun Fang, Chonghuo Liu, Guillaume Lefèvre, Gérard Guillamot, Phannarath Phansavath, Virginie Ratovelomanana‐Vidal   +6 more
wiley   +1 more source

A Short Total Synthesis of the Daucane Sesquiterpenoid Ferutinin

European Journal of Organic Chemistry, EarlyView.
Only nine steps were required to access the bioactive daucane sesquiterpene ester ferutinin (1) from 3‐methyl‐2‐cyclopentenone (3) and allyl p‐tolyl sulfoxide. A one‐pot 1,4‐addition/aldol sequence was used to rapidly provide diene 2 (TBS = tert‐butyldimethylsilyl), ring‐closing metathesis of which followed by alkylation and acylation gave rise to the ...
Christiane Osthaar, Yuzhou Wang, Anne Jäger, Peter Metz   +3 more
wiley   +1 more source

Sulfur‐Rich Sustainable Copolymers for Enhancing Redox Kinetics and Alleviating Cathode Passivation in Lithium‐Sulfur Batteries

Exploration, EarlyView.
A molecularly engineered, sustainable sulfur‐rich redox copolymer cathode delivers accelerated sulfur conversion and suppressed passivation, enabling high sulfur utilization and durable, high‐performance LiS batteries. ABSTRACT Lithium‐sulfur (Li‐S) batteries are promising candidates for advanced energy storage systems.
Sangeeta Sahu, Arnab Ghosh, Monisha Monisha, Murali Krishna, Shakir Ali Siddiqui, Sunan Tian, De‐Yi Wang, Sagar Mitra, Bimlesh Lochab   +8 more
wiley   +1 more source