Results 1 to 10 of about 90,721 (285)

Unveiling the alkyne-π interaction using metal-organic cage compounds [PDF]

Communications Chemistry
Alkynes play a crucial role in chemical synthesis, bio-imaging, and drug design. Despite their significance, the intermolecular interactions involving alkynes have been largely unexplored.
Junrui Liu, Shujun Ning, Ting Chen, Zi-Ang Nan, Zhe-Ning Chen, Luyao Liu, Zhu Zhuo, Qing Li, Wei Wang, Lu Zhang, You-Gui Huang   +10 more
doaj   +2 more sources

Azide-Alkyne Cycloaddition Catalyzed by a Glucose/Benedict Reagent System

Chemistry Proceedings, 2021
Benedict’s Reagent is commonly used in identifying reducing sugars through a redox process where a Cu(I) species is generated. Despite the simplicity of this reaction, this has barely been investigated as a copper (I) source for catalytic processes.
Jesús G. García Torres, Andrés F. Becerra-Buitrago, Luis Carlos García-Sánchez, Marco A. García-Eleno, M. V. Basavanag Unnamatla, Erick Cuevas-Yañez   +5 more
doaj   +1 more source

Stereoselective synthesis of (E)-vinyl alkyl sulfides via hydrozirconation of terminal alkynes [PDF]

Journal of the Serbian Chemical Society, 2004
Terminal alkynes react with Cp2Zr(H)Cl (Cp = μ5-C5H5) to give organozirconium complexes, which are trapped with alkylsulfenyl chlorides to afford (E)-vinyl alkyl sulfides in good yield.
Ping Zhong, Xian Huang
doaj   +3 more sources

Synthesis and Inhibition of Influenza H1N1 Virus by Propargylaminoalkyl Derivative of Lithocholic Acid

Molbank, 2023
In the current study, the conjugate of 3-oxo-lithocholic acid with N-methylpiperazine and paraform was synthesized using the Mannich reaction and evaluated for antiviral activity.
Anastasiya V. Petrova, Irina E. Smirnova, Sergey V. Fedij, Yulia N. Pavlyukova, Vladimir V. Zarubaev, Thao Tran Thi Phuong, Khine Myint Myint, Oxana B. Kazakova   +7 more
doaj   +1 more source

HUISGEN AND HIS ADVENTURES IN A PLAYGROUND OF MECHANISMS AND NOVEL REACTIONS [PDF]

Química Nova, 2021
The death of professor Rolf Huisgen (1920-2020) was announced on March 26th 2020, in the midst of the COVID-19 pandemic. Professor Huisgen was professor emeritus at the University of Munich in Germany, and studied in detail the mechanism of the 1,3 ...
Daniel T. G. Gonzaga, Luana da S. M. Forezi, Carolina G. de S. Lima, Patricia G. Ferreira, Fernando de C. da Silva, Vitor F. Ferreira   +5 more
doaj   +1 more source

Controlling alkyne reactivity by means of a copper-catalyzed radical reaction system for the synthesis of functionalized quaternary carbons

Beilstein Journal of Organic Chemistry, 2020
A terminal alkyne is one of the most useful reactants for the synthesis of alkyne and alkene derivatives. Because an alkyne undergoes addition reaction at a C–C triple bond or cross-coupling at a terminal C–H bond. Combining those reaction patterns could
Goki Hirata, Yu Yamane, Naoya Tsubaki, Reina Hara, Takashi Nishikata   +4 more
doaj   +1 more source

Copper-azide nanoparticle: a ‘catalyst-cum-reagent’ for the designing of 5-alkynyl 1,4-disubstituted triazoles

Scientific Reports, 2020
A single pot, wet chemical route has been applied for the synthesis of polymer supported copper azide, CuN3, nanoparticles (CANP). The hybrid system was used as ‘catalyst-cum-reagent’ for the azide-alkyne cyclo-addition reaction to construct triazole ...
Debkumar Nandi, Venkata K. Perla, Sarit K. Ghosh, Charmaine Arderne, Kaushik Mallick   +4 more
doaj   +1 more source

Relative Reactivity of the Metal-Amido versus Metal-Imido Bond in Linked Cp-Amido and Half-Sandwich Complexes of Vanadium [PDF]

, 2008
Treatment of (η5-C5H4C2H4NR)V(N-t-Bu)Me (R = Me, i-Pr) and CpV(N-p-Tol)(N-i-Pr2)Me (Cp = η5-C5H5) with B(C6F5)3 or [Ph3C][B(C6F5)4] results in formation of the corresponding cations, [(η5-C5H4C2H4NR)V(N-t-Bu)]+ and [CpV(N-p-Tol)(N-i-Pr2)]+.
Alonso F., Anderson L. L., Anderson L. L., Bouwkamp M. W., Bytschkov I., Carpentier J.-F., Doye S., Frisch M. J., Gagné M. R., Gagné M. R., Horton A. D., Hughes A. K., Johnson J. S., Li Y., Lorber C., Margl P., Mayer J. M., Müller T. E., Nobis M., Odom A. L., Pohlki F., Pohlki F., Preuss F., Preuss F., Sinnema P. J., Straub B. F., Stubbert B. D., Vanka K., Vatamanu M., Witte P. T., Wu F., Yamada J.   +31 more
core   +11 more sources

Regioselective and stoichiometrically controlled conjugation of photodynamic sensitizers to a HER2 targeting antibody fragment [PDF]

, 2014
The rapidly increasing interest in the synthesis of antibody–drug conjugates as powerful targeted anticancer agents demonstrates the growing appreciation of the power of antibodies and antibody fragments as highly selective targeting moieties.
Boyle, Ross W., Bryden, Francesca, Caddick, Stephen, Chudasama, Vijay, Maruani, Antoine, Savoie, Huguette, Smith, Mark E. B.   +6 more
core   +1 more source

A Simple Nickel Catalyst Enabling an E‐Selective Alkyne Semihydrogenation [PDF]

, 2019
Stereoselective alkyne semihydrogenations are attractive approaches to alkenes, which are key building blocks for synthesis. With regards to the most atom economic reducing agent dihydrogen (H 2 ), only few catalysts for the challenging E ‐selective ...
Kaewmee, Benyapa, Teichert, Johannes F., Thiel, Niklas Olof, Tran Ngoc, Trung   +3 more
core   +1 more source