Results 71 to 80 of about 367,010 (217)

Synthesis and Structural Characterization of [Ir4(m-CO)(CO)7{m4-h3-Ph2PC(H)C(Ph)PCBut}(m-PPh2)]: Alkyne-Phosphaalkyne Coupling and Formation of a Novel 2-phosphabutadienylphosphine Ligand

Journal of the Brazilian Chemical Society, 1998
Reaction of [Ir4(mu-H)(CO)9(Ph2PCºCPh)(mu-PPh2)] 1 with PºCBu t in CH2Cl2, at 35 °C, for 4 h yields the novel compound [Ir4(mu-CO)(CO)7{mu4-eta³-Ph2PC(H)C(Ph)PCBu t}(mu-PPh2)] 2, which contains the 2-phosphabutadienylphosphine chain.
Araujo Maria Helena, Hitchcock Peter B., Nixon John F., Vargas Maria D.   +3 more
doaj  

The Eschenmoser coupling reaction under continuous-flow conditions

Beilstein Journal of Organic Chemistry, 2011
The Eschenmoser coupling is a useful carbon–carbon bond forming reaction which has been used in various different synthesis strategies. The reaction proceeds smoothly if S-alkylated ternary thioamides or thiolactames are used.
Sukhdeep Singh, J. Michael Köhler, Andreas Schober, G. Alexander Groß   +3 more
doaj   +1 more source

Role of Cavity Strong Coupling on Single Electron Transfer Reaction at Electrode-Electrolyte Interface

Physicochemical properties of molecules can be modulated through the formation of polaritonic states from the molecules and resonator based on the cavity quantum electrodynamics.
Takahiro, Hayashi, Tomohiro, Fukushima, Kei, Murakoshi   +2 more
core   +1 more source

Optimization of 3', 4'-Anhydrovinblastine Synthesis Using Crude Extracts of Irradiated with Near-Ultraviolet Light

Natural Product Communications, 2016
Dimeric indole alkaloids (DIAs), such as vinblastine and vincristine, found in Catharanthus roseus are used clinically as antitumor drugs. A stable supply of DIAs is desired because these alkaloids are very expensive due to their low abundance in plants.
Mamiko Asano, Kazuo Harada, Akiko Umeno, Kazumasa Hirata   +3 more
doaj   +1 more source

Silver-Catalyzed Decarboxylative Cross-coupling Radical Reaction: Direct Synthesis of Coenzyme Q Compounds

, 2019
An efficient and general method for the synthesis of Coenzyme Q compounds through the activation of 1,4-benzoquinone Csp2-H bond has been developed. This C-C bond formation reaction proceeds readily in an open flask by direct cross-coupling reaction of ...
Wan-Yue, Luo, Jin, Wang, Yan, Zhao, Xiao, Hu, Tian-Li, Zhang   +4 more
core   +1 more source

A Conjugated Microporous Polymer for Palladium‐Free, Visible Light‐Promoted Photocatalytic Stille‐Type Coupling Reactions

Advanced Science, 2017
The Stille coupling reaction is a versatile method to mainly form aromatic CC bonds. However, up to now, the use of palladium catalysts is necessary.
Saman Ghasimi, Simon A. Bretschneider, Wei Huang, Katharina Landfester, Kai A. I. Zhang   +4 more
doaj   +1 more source

Cu-Catalyzed Aerobic Oxidative N–N Coupling of Carbazoles and Diarylamines Including Selective Cross-Coupling

, 2018
A Cu-catalyzed method has been identified for aerobic oxidative dimerization of carbazoles and diarylamines to the corresponding N–N coupled bicarbazoles and tetraarylhydrazines.
Shannon S. Stahl (1291731), Michael C. Ryan (5518418), Joseph R. Martinelli (1479562)   +2 more
core   +1 more source

Attempted Enantioselective Preparation of ∝-Aminophosphonic Acids and a Mechanistic Investigation of the Coupling Agent Mediated Phosphonamidation Reaction

, 2017
The aim of the study was to advance the chemistry related to aminophosphonic acids. After reviewing the available literature, our attention was drawn towards the preparation of chiral ∝-aminophosphonic acids and derivatives thereof.
Fredriksen, Kim Alex
core   +1 more source

Estudos cinéticos de uma reação de Heck intramolecular em meio aquoso catalisadas por nanopartículas de paládio suportadas em polietilenoimina ramificada [PDF]

, 2013
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Química, Florianópolis, 2013Reações de acoplamento Carbono-Carbono do tipo Heck, em meio aquoso, tem se destacado como
Albuquerque, Brunno Lange
core  

A stereospecific phenol coupling reaction [PDF]

Journal of the American Chemical Society, 1976
FERINGA, B, WYNBERG, H
openaire   +3 more sources