Results 31 to 40 of about 3,346 (163)

Synthesis of Spiro Pyrazolone-Oxindole and Bicyclic Pyrazolone Derivatives via Solvent-Dependent Regioselective Aza-1,4/1,6-Michael and Intramolecular Cycloaddition under Catalyst-Free Conditions

SynOpen, 2021
A solvent-dependent, highly regioselective [3+2]-cyclo­addition reaction of isoxazole-styrenes and azomethine imines under catalyst-free conditions is reported, furnishing a library of pyrazolone–spirooxindole hybrids.
Kota Sathish, Sakkani Nagaraju, Dhurke Kashinath   +2 more
doaj   +1 more source

Denitrative Cross-Couplings of Nitrostyrenes

Molecules, 2020
Interestingly, β-nitrostyrenes, typically bench stable compounds, are highly promising cross-coupling partners, due to their excellent availability and well understood reactivity.
Michaela Marčeková, Branislav Ferko, Katarína Ráchel Detková, Pavol Jakubec   +3 more
doaj   +1 more source

Copper-catalyzed aminooxygenation of styrenes with N-fluorobenzenesulfonimide and N-hydroxyphthalimide derivatives

Beilstein Journal of Organic Chemistry, 2015
A copper-catalyzed aminooxygenation reaction of styrenes with N-fluorobenzenesulfonimide and N-hydroxyphthalimide derivatives has been developed. The aminooxygenation product could be converted into the corresponding alcohol or free amine through the ...
Yan Li, Xue Zhou, Guangfan Zheng, Qian Zhang   +3 more
doaj   +1 more source

Potassium thiocyanate-promoted four-component alkoxysulfenylation of styrenes with imidazo[1,2-a]pyridines and alcohols [PDF]

RSC Advances
A green four-component alkoxysulfenylation of styrenes with imidazo[1,2-a]pyridines, potassium thiocyanate and alcohols for the synthesis of multifunctionalized imidazo[1,2-a]pyridines was developed.
Chun Ling, Yufeng Yang, Jiale Wu, Zhaohua Yan, Tian Chen   +4 more
doaj   +1 more source

Highly regio- and enantioselective multiple oxy- and amino-functionalizations of alkenes by modular cascade biocatalysis

Nature Communications, 2016
Biocatalysis can perform highly selective multi-step synthesis in one pot, but with a limited range of non-natural reactions and products. Here, the authors report regio- and enantioselective bio-cascades, able to convert styrenes into a number of ...
Shuke Wu, Yi Zhou, Tianwen Wang, Heng-Phon Too, Daniel I. C. Wang, Zhi Li   +5 more
doaj   +1 more source

Silver‐Catalyzed Decarboxylative Coupling of Oxamic Acids with Styrenes to Synthesize E‐Cinnamamides: A Distinguish Reaction Pathway

ChemistryOpen
A silver‐catalyzed decarboxylative coupling of oxamic acids with styrenes has been developed to produce E‐cinnamamides. Oxamic acids act as efficient precursors for carbamoy radicals.
Ru‐Han A, Yong‐Wang Huo, Xiao‐Feng Wu   +2 more
doaj   +1 more source

Electron Transfer-Induced Coupling of Haloarenes to Styrenes and 1,1-Diphenylethenes Triggered by Diketopiperazines and Potassium tert-Butoxide

Molecules, 2015
The coupling of haloarenes to styrenes and 1,1-diarylethenes has been achieved with potassium tert-butoxide in the presence of N,N'-dialkyldiketopiperazines.
Eswararao Doni, Shengze Zhou, John A. Murphy   +2 more
doaj   +1 more source

Efficient Palladium-Catalyzed Synthesis of 2-Aryl Propionic Acids

Molecules, 2020
A flexible two-step, one-pot procedure was developed to synthesize 2-aryl propionic acids including the anti-inflammatory drugs naproxen and flurbiprofen.
Helfried Neumann, Alexey G. Sergeev, Anke Spannenberg, Matthias Beller   +3 more
doaj   +1 more source

Invention and Development of a Novel Catalytic Process for the Production of a Benzenesulfonic Acid-Building Block

CHIMIA, 1997
Development of a highly 'atom-efficient' production process for 2-alkyl-substituted benzenesulfonic acids by arylation of olefins with 2-diazoniobenzenesulfonate catalyzed by a homogeneous Pd-complex and subsequent hydrogenation of the resulting
Peter Baumeister, Willy Meyer, Konrad Oertle, Gottfried Seifert, Heinz Steiner   +4 more
doaj   +2 more sources

Butadiene or styrene or butadiene and styrene or else? [PDF]

Occupational and Environmental Medicine, 2006
Commentary on the paper by Sathiakumar et al ( Occup Environ Med , December 2005)* In the December 2005 issue of this journal, Sathiakumar and colleagues1 report on the extended follow up of the University of Alabama cohort in the styrene–butadiene–rubber industry.
K, Straif, R, Baan, V, Cogliano
openaire   +2 more sources