Results 1 to 10 of about 36,889 (205)

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

N-(2-Phenoxy-4-(3-phenoxyprop-1-ynyl)phenyl)methane Sulfonamide

Molbank, 2012
The title compound, N-(2-phenoxy-4-(3-phenoxyprop-1-ynyl)phenyl) methanesulfonamide was synthesized in high yield by Sonogashira cross coupling of N-(4-iodo-2-phenoxyphenyl)methanesulfonamide with 3-phenoxyprop-1-yne.
Shylaprasad Durgadas, Khagga Mukkanti, Sarbani Pal   +2 more
doaj   +1 more source

Crystal structure, Hirshfeld surface analysis and density functional theory study of benzyl 2-oxo-1-(prop-2-yn-1-yl)-1,2-dihydroquinoline-4-carboxylate

Acta Crystallographica Section E: Crystallographic Communications, 2021
The title molecule, C20H15NO3, adopts a Z-shaped conformation with the carboxyl group nearly coplanar with the dihydroquinoline unit. In the crystal, corrugated layers are formed by C—H...O hydrogen bonds and are stacked by C—H...π(ring) interactions ...
Younos Bouzian, Karim Chkirate, Joel T. Mague, Fares Hezam Al-Ostoot, Noureddine Hammou Ahabchane, El Mokhtar Essassi   +5 more
doaj   +1 more source

Nucleophilic and electrophilic cyclization of N-alkyne-substituted pyrrole derivatives: Synthesis of pyrrolopyrazinone, pyrrolotriazinone, and pyrrolooxazinone moieties

Beilstein Journal of Organic Chemistry, 2017
Intramolecular nucleophilic and electrophilic cyclization of N-alkyne-substituted pyrrole esters is described. Efficient routes towards the synthesis of pyrrolopyrazinone, pyrrolotriazinone and pyrrolooxazinone have been developed.
Işıl Yenice, Sinan Basceken, Metin Balci   +2 more
doaj   +1 more source

3-(3-Nitrophenyl)-1-[4-(prop-2-ynyloxy)phenyl]prop-2-en-1-one

IUCrData, 2022
The structure of the title compound, C18H13NO4, shows that the whole molecule is almost planar but with a dihedral angle between the two phenyl rings of 19.22 (5)°.
Vinaya, Yeriyur B. Basavaraju, Holalagudu A. Nagma Banu, Balakrishna Kalluraya, Hemmige S. Yathirajan, Rishik Balerao, Ray J. Butcher   +6 more
doaj   +1 more source