Results 131 to 140 of about 481,707 (338)

Vinylation of Alcohols, Thiols, and Nitrogen Compounds Using a Stoichiometric Amount of In Situ Generated Acetylene

Organics
In this work, we developed a highly efficient and versatile environmentally benign methodology for the vinylation of a broad scope of substances, including alcohols, thiols, and nitrogen compounds.
Maria S. Ledovskaya, Vladimir V. Voronin, Anna A. Reznichenko, Ekaterina A. Reznichenko   +3 more
doaj   +1 more source

Sulphuric Acid Adsorbed on Silica Gel. A Remarkable Acetylation Catalyst [PDF]

Iranian Journal of Chemistry & Chemical Engineering, 2000
Sulphuric acid adsorbed on silica gel is a practical and useful catalyst for acetylation of varius alcohols, Phenols and amines.
Mohammad, A. Bigdeli, Nikdokht Nahid, Majid M. Heravi   +2 more
doaj  

Solvent-controlled diastereodivergent cascade synthesis of trisubstituted tetrahydrothiophenes utilizing polystyrene-supported amine

, 2023
Anshul Jain, Akanksha Kumari, Khyati Shukla, Sermadurai Selvakumar, Nirmal K. Rana   +4 more
openalex   +1 more source

Tunable and Recyclable Piezoelectric Biomaterials via Ion‐Directed Guanine‐Quadruplex Assembly

Advanced Functional Materials, EarlyView.
Guanine‐quadruplex (GQ) assemblies, formed via ion‐mediated self‐assembly of amphiphilic guanine derivatives, are introduced as tunable and recyclable piezoelectric biomaterials. Distinct alkali ions induce unique dipole configurations and piezoelectric outputs, with K⁺ yielding the highest performance.
Seungho Lee, Sangyun Na, Yumi Cho, Gaeun Park, Seung Hak Oh, Jaejun Kim, Byoung‐Ki Cho, Sang Kyu Kwak, Ja‐Hyoung Ryu, Hyunhyub Ko   +9 more
wiley   +1 more source

The occurrence and biogeochemical cycling of quaternary, ternary and volatile amines in marine systems

Frontiers in Marine Science
This review provides a critical assessment of knowledge regarding the occurrence and behaviour of volatile, low molecular weight amines, particularly methylamines and quaternary amines, in marine aquatic systems.
Mark F. Fitzsimons, Ruth Airs, Yin Chen
doaj   +1 more source

Poly[[{μ₃-tris[2-(4-phenyl-1,2,3-triazol-1-yl)ethyl]amine}silver(I)] hexafluoridophosphate] [PDF]

, 2008
Hiromi Ohi, Mayumi Shimizu, Makoto Obata, Takuzo Funabiki, Shigenobu Yano   +4 more
openalex   +1 more source

Design of Efficient and Mechanically Robust Anion Exchange Membrane for Water Electrolysis Achieved by Chemically Crosslinked Elastomers using Polyfluorene‐Based Conjugated Polymers

Advanced Functional Materials, EarlyView.
High‐performance SEBS‐PFB AEM is developed by crosslinking SEBS‐amine with polyfluorene‐based crosslinker containing benzene spacer. With the superior electrochemical and mechanical properties, SEBS‐PFB enabled an AEMWE single cell to achieve a high current density of 14.0 A cm−2 at 2.0 V and 80 °C in 1 m KOH, using a PtRu/C cathode and Ni2Fe anode ...
Hyun Soo Kwon, Jaeho Byeon, Chulhee Lim, Jinseok Park, Jaejoon Lee, Jaeyoung Choi, Tae Hoon Kim, Jinwoo Lee, Bumjoon J. Kim   +8 more
wiley   +1 more source

Upconversion Nanoparticles Embedded Photonic Contact Lens for Transepithelial Corneal Crosslinking Using Hyaluronate – Riboflavin Conjugate

Advanced Functional Materials, EarlyView.
A minimally invasive, transepithelial corneal cross‐linking (TE‐CXL) approach is presented using upconversion nanoparticles (UCNPs)‐loaded contact lenses (UCLs), after topical delivery of hyaluronate–riboflavin conjugates. The NIR‐to‐UV/blue light conversion by UCNPs in a UCL can activate riboflavin for TE‐CXL, resulting in the biomechanical strength ...
Gibum Lee, Inhoo Choi, Anara Molkenova, Yengwoo Son, Seungmin Yang, Mina Kwon, Tae‐Im Kim, Ki Su Kim, Sei Kwang Hahn   +8 more
wiley   +1 more source

Bases of inorganic and organic chemistry [PDF]

, 2016
Stated fundamental theoretical principles of general, inorganic and organic chemistry and analyzed the reactivity of the most important classes of inorganic and organic substances. A multivariate tasks and exercises for classroom and independent work are
Alami, D., Slavkova, M., Ved, M.
core  

Synergistic Fluorine and Cyanide Co‐Modification to Reinforce Photoinduced Excitons Formation and Transfer for Efficient CO2 Photoreduction

Advanced Functional Materials, EarlyView.
An advanced F‐doped and ─CN group co‐modified FCCN is developed. Due to the synergistic effects of co‐modification in promoting photogenerated exciton generation, enhancing charge kinetics, expanding active interfacial areas, and optimizing CO2 interfacial reactions, the FCCN photocatalyst demonstrates excellent catalytic performance and high ...
Sheng‐Qi Guo, Qingqing Dong, Xiaodong Sun, Ziqi Zhang, Linda Wang, Lei Bao, Bozhan Li, Hui Li, Yanrui Li, Tianyi Ma   +9 more
wiley   +1 more source