Results 21 to 30 of about 67,326 (131)

Allylsulfones through Palladium‐Catalyzed Allylic C−H Sulfonylation of Terminal Alkenes

European Journal of Organic Chemistry, Volume 26, Issue 8, February 17, 2023., 2023
We report two distinct protocols for the preparation of allylsulfones via Pd(II)‐catalyzed allylic C−H activation. While the former protocol consists of a direct Pd(II)‐catalyzed oxidative C−H allylic sulfonylation in the presence of sulfinate anions, the latter involves a sequential one‐pot Pd(II)‐catalyzed C−H allylic acetoxylation followed by a Pd(0)
Tingting Chen, Jassmin Lahbi, Gianluigi Broggini, Alexandre Pradal, Giovanni Poli   +4 more
wiley   +1 more source

Asymmetric Pd(II)‐Catalyzed C−O, C−N, C−C Bond Formation Using Alkenes as Substrates: Insight into Recent Enantioselective Developments

European Journal of Organic Chemistry, Volume 26, Issue 2, January 10, 2023., 2023
Recent advances in Pd(II)‐catalyzed enantioselective mono‐ and difunctionalization of alkenes, involving C−O, C−N and C−C bond formation, are discussed, highlighting the fundamental role of ligands and reaction conditions optimization. This review summarizes the significant advances made over the last years and provides tools for developing new ...
Sabrina Giofrè, Letizia Molteni, Egle M. Beccalli   +2 more
wiley   +1 more source

Demonstrating the Use of a Fungal Synthesized Quinone in a Redox Flow Battery

Batteries &Supercaps, Volume 6, Issue 1, January 2023., 2023
Biobased: The filamentous fungus can be used as an environmentally and sustainable benign source to produce the bio‐based quinone phoenicin. This natural compound shows electrochemical properties, which can be used as the active material in the negative electrolyte in a redox flow battery with results showing that biologically produced quinones may ...
Charlotte Overgaard Wilhelmsen, Sebastian Birkedal Kristensen, Oliver Nolte, Ivan A. Volodin, Johan Vormsborg Christiansen, Thomas Isbrandt, Trine Sørensen, Celine Petersen, Teis Esben Sondergaard, Kåre Lehmann Nielsen, Thomas Ostenfeld Larsen, Jens Christian Frisvad, Martin D. Hager, Ulrich S. Schubert, Jens Muff, Jens Laurids Sørensen   +15 more
wiley   +1 more source

Kinetic study of the reaction of leuco methylene blue with 2,6-dimethyl-p-benzoquinone in a reverse micellar system [PDF]

, 2008
The kinetics of the reaction of leuco methylene blue (MBH) with 2,6-dimethyl-p-benzoquinone (DMBQ) were studied in a heptane/bis(2-ethylhexyl)-sulfosuccinate (AOT)/water reverse micellar system. The pseudo-first-order rate constant (k (obsd)) obtained in
Sueishi, Yoshimi, Usui, Daisuke, Yamamoto, Shunzo   +2 more
core   +1 more source

Ecofriendly liquid phase oxidation with hydrogen peroxide of 2,6-dimethylphenol to 2,6-dimethyl-1,4-benzoquinone catalyzed by TiO2-CeO2 mixed xerogels [PDF]

, 2009
Titania–ceria mixed xerogels were prepared with 10% (w/w) CeO2 and different pH values during the sol–gel process. The gels were dried in air and calcined at different temperature.
Romanelli, Gustavo Pablo, Villabrille, Paula Isabel, Palacio, Magdalena, Vazquez, Patricia Graciela, Caceres, Carmen Victoria   +4 more
core   +1 more source

Cu‐Catalyzed Aerobic Oxidative C─C Cleavage in Lignin‐Derived Oligomers and Biological Funneling of the Monomeric Products

Angewandte Chemie, Volume 138, Issue 2, 9 January 2026.
Catalytic aerobic oxidation under aqueous alkaline conditions promotes C–C cleavage in pine‐ and poplar‐derived lignin oligomers, accessing high yields of aromatic monomers. The monomeric phenols obtained from this process then undergo effective biological conversion into cis,cis‐muconic acid and 2‐pyrone‐4,6‐dicarboxylic acid using engineered strains ...
Surajudeen Omolabake, Dillon T. Hofsommer, Kathryn M. Mains, Chad T. Palumbo, Davide Rigo, Allison Z. Werner, Gregg T. Beckham, Shannon S. Stahl   +7 more
wiley   +2 more sources

Synthesis of the Ammonium Salt of 6-Amino-2-hydroxy- 3,5-dinitropyrazine and a Comparison of its Properties with those of Ammonium 3,5-Diaminopicrate (ADAP) [PDF]

, 2009
The ammonium salt of 6-amino-2-hydroxy-3,5-dinitropyrazine has been synthesised from 2,6-dimethoxy-3,5-dinitropyrazine and its properties [DSC, crystal structure, impact sensitiveness, thermochemical properties] are compared with the analogous benzene ...
Padfield, James, Contini, Alessandro E., Golding, Peter, Anthony J. Bellamy, Peter Golding, James Padfield, Mary F. Mahon, Bellamy, Anthony J., Mahon, Mary F., Alessandro E. Contini   +9 more
core   +1 more source

Ecotoxicological assessment of p-benzoquinone oxidation byproducts in water treatment systems: oxidative stress responses and mechanisms

Environment International
p-Benzoquinone analogues, a class of ubiquitous oxidation byproducts, are increasingly detected in effluents from various oxidative treatment systems.
Zirui Liu, Dehua Ma, Qiang Cheng, Aroob Abid, Shuaijie Zhao, Chenyi Li, Qingzhuo Niu, Min Zheng   +7 more
doaj   +1 more source

2,6-Bis(2-methyl-1,3-diazinan-2-yl)-pyridine

, 2010
The title compound, C15H25N5, is an aminalization product between 2,6-diacetyl­pyridine and 1,3-diamino­propane. It crystallizes with two independent mol­ecules in the asymmetric unit with different conformations.
Bolte, Michael, Quoc-Cuong Ton, Michael Bolte, Cuong, Ton Quoc   +3 more
core   +1 more source

Bis(2,6-dicarboxy­pyridinium) dichloride acetone monosolvate

, 2009
The title compound, 2C7H6NO4 +·2Cl-·C3H6O, crystallizes with two 2,6-dicarboxy­pyridinium cations, two chloride anions and one acetone mol­ecule in the asymmetric unit.
Bolte, Michael, Cuong, Ton Quoc
core   +1 more source