Results 31 to 40 of about 68,808 (283)

Facile Photochemical/Thermal Assisted Hydration of Alkynes Catalysed under Aqueous Media by a Chalcogen Stabilized, Robust, Economical, and Reusable Fe₃Se₂(CO)₉ Cluster

Organics, 2023
In this report, the catalytic potential of chalcogen-stabilized iron carbonyl clusters [Fe3E2(CO)9 (E = S, Se, Te)] for the photolytic hydration of alkynes has been explored.
Munsaf Ali, Avinash K. Srivastava, Nitinkumar Satyadev Upadhyay, Naveen Satrawala, Raj K. Joshi   +4 more
doaj   +1 more source

Alkyne-Functionalized Ruthenium Nanoparticles: Impact of Metal–Ligand Interfacial Bonding Interactions on the Selective Hydrogenation of Styrene

, 2018
In the present study, ruthenium nanoparticles functionalized with terminal and internal alkynes were prepared, and it was found that internal alkynes formed a η2 side-on configuration on the surface of ruthenium nanoparticles, in sharp contrast to the ...
Fengqi Zhang, Shaowei Chen, Wenming Sun (1270668), Zhang Lin, Xiongwu Kang (1525783), Lin Huang (288599), Zhenqing Shi (1275468), Jingjing Fang, Xiongwu Kang, Jingjing Fang (124938), Zhang Lin (1458301), Wenming Sun, Shaowei Chen (1391854), Lin Huang, Zhenqing Shi, Fengqi Zhang (1445968)   +15 more
core   +1 more source

Nickel-Catalyzed Intermolecular Alkyne Hydrohydrazonation [PDF]

, 2021
We report a method for mild and atom-efficient synthesis of ketazines via nickel-catalyzed intermolecular hydroamination of internal alkynes with NH2-hydrazones.
Angel, Ugrinov, Yanxiong, Pan, Taehyun, Kim, Junfeng, Liu, Rajith, Manan, Zhongyu, Yang, Pinjing, Zhao, Jian, Wang   +7 more
core   +2 more sources

Sequential Au(I)-catalyzed reaction of water with o-acetylenyl-substituted phenyldiazoacetates

Beilstein Journal of Organic Chemistry, 2011
The gold(I)-catalyzed reaction of water with o-acetylenyl-substituted phenyldiazoacetates provides 1H-isochromene derivatives in good yields. The reaction follows a catalytic sequence of gold carbene formation/water O–H insertion/alcohol-alkyne ...
Lei Zhou, Yizhou Liu, Yan Zhang, Jianbo Wang   +3 more
doaj   +1 more source

Synthesis of Calix[4]arene Appended Lactosylated G1 and Galacto­sylated G2 Generation Glycodendrimers using a ‘CuAAC’ Click Approach

SynOpen, 2023
A modular and highly reliable click approach is applied for the expeditious synthesis of lactose- and galactose-coated calixarene-cored G1 and G2 generation glycodendrimers, respectively.
Sunil Kumar, Mangal S. Yadav, Sumit K. Singh, Sanchayita Rajkhowa, Vinod K. Tiwari   +4 more
doaj   +1 more source

Alkyne-Modulated Surface-Enhanced Raman Scattering-Palette for Optical Interference-Free and Multiplex Cellular Imaging

, 2016
The alkyne tags possess unique interference-free Raman emissions but are still hindered for further application in the field of biochemical labels due to its extremely weak spontaneous Raman scattering. With the aid of computational chemistry, herein, an
Xia-Guang Zhang (2807857), Yong Chen (109188), Ji-Ming Hu (2380309), Jia-Qiang Ren (2808622), Ai-Guo Shen (445131), De-Yin Wu (1313961)   +5 more
core   +1 more source

Synthesis of Conjugated Triynes via Alkyne Metathesis [PDF]

, 2019
The synthesis of conjugated triynes by molybdenum-catalyzed alkyne metathesis is reported. Strategic to the success of this approach is the utilization of sterically-hindered diynes that allowed for the site- selective alkyne ...
Idriss, Curbet, Yann, Trolez, Thierry, Roisnel, Sophie, Colombel-Rouen, Romane, Manguin, Daniel S., Müller, Anthony, Clermont, Marc, MAUDUIT, Alexandre, Quelhas, Olivier, BASLE   +9 more
core   +2 more sources

Gold(I)-catalyzed hydroarylation reaction of aryl (3-iodoprop-2-yn-1-yl) ethers: synthesis of 3-iodo-2H-chromene derivatives

Beilstein Journal of Organic Chemistry, 2013
An efficient entry to the preparation of elusive 4-unsubstituted-3-iodo-2H-chromenes has been accomplished as result of a catalytic cyclization. Thus, upon exposition of [(3-iodoprop-2-yn-1-yl)oxy]arenes to IPrAuNTf2 (3 mol %), in 1,4-dioxane at 100 °C ...
Pablo Morán-Poladura, Eduardo Rubio, José M. González   +2 more
doaj   +1 more source

Alkyne lipids as substrates for click chemistry-based in vitro enzymatic assays

Journal of Lipid Research, 2013
Click chemistry is evolving as a powerful tool in biological applications because it allows the sensitive and specific detection of compounds with alkyne or azido groups.
Anne Gaebler, Robin Milan, Leon Straub, Dominik Hoelper, Lars Kuerschner, Christoph Thiele   +5 more
doaj   +1 more source

Synthesis of Polar Aromatic Substituted Terminal Alkynes from Propargyl Amine

Molbank, 2021
A series of small molecules containing polar aromatic substituents and alkynes have been synthesized. One–pot preparations of polar aromatic molecules containing an alkynyl imine and alkynyl amide are reported.
Surya R. Banks, Kyung Min Yoo, Mark E. Welker   +2 more
doaj   +1 more source