Results 61 to 70 of about 46,076 (249)

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

Chemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Separate hydrolysis and fermentation of softwood bark pretreated with 2-naphthol by steam explosion

Biotechnology for Biofuels and Bioproducts
Background 2-Naphthol, a carbocation scavenger, is known to mitigate lignin condensation during the acidic processing of lignocellulosic biomass, which may benefit downstream processing of the resulting materials. Consequently, various raw materials have
Andreas Averheim, Stefan Stagge, Leif J. Jönsson, Sylvia H. Larsson, Mikael Thyrel   +4 more
doaj   +1 more source

Carbocation scavenger enhanced pretreatment of wood for enzymatic saccharification – Experimental study and review

Industrial Crops and Products
The suppression of lignin repolymerization by carbocation scavengers in lignocellulosic biomass pretreatment improves both the bioconversion of cellulose and the quality of the obtained lignin.
Butrint Nikqi, Juri Salzmann, Matthias A.U. Eckl, Davide Di Francesco, Thomas Pielhop   +4 more
doaj   +1 more source

Synthesis and photochromic properties of a bis(diarylethene)-naphthopyran hybrid [PDF]

, 2014
The synthesis and photochromic properties of a triphotochromic molecule consisting of one naphthopyran flanked by two diarylethene units investigated by UV-Visible and NMR spectroscopies are reported.
Berthet, Jerome, Berthet, Jérôme, Cseh, Liliana, Delbaere, Stephanie, Delbaere, Stéphanie, Erko, Firealem G., Mehl, Georg H.   +6 more
core   +2 more sources

Dynamics and Conformational Stability of Chiral Bay‐Phenolate‐Substituted Twisted Octaazaperopyrenedioxides (OAPPDOs)

Chemistry – A European Journal, EarlyView.
Chiral octaazaperopyrenedioxide (OAPPDO) fluorophores were obtained by functionalizing with BINOL and related fragments bridging the bay position. They possess conformational flexibility but remarkable thermal stability with respect to racemization of the central chromophore, which allowed the study of their chiroptical properties, including circular ...
Bastian Rojas‐Deij, Lars Schneider, Tim Bruckhoff, Robert Eichelmann, Philipp Rohrmann, Raphael Candalh, Joachim Ballmann, Felix Deschler, Lutz H. Gade   +8 more
wiley   +1 more source

Catalytic Amyloids: Turning Fibrils Into Biocatalysts

Chemistry – A European Journal, EarlyView.
Amyloids, traditionally associated with diseases, have emerged as versatile catalytic scaffolds. From natural amyloid sequences to bioinspired and de novo designs, we highlight strategies to construct catalytic active sites and anchor enzymes onto fibrils, creating versatile nanomaterials with tunable activities. ABSTRACT Amyloids have been regarded as
Alessandra Esposito, Linda Leone, Flavia Nastri, Angela Lombardi   +3 more
wiley   +1 more source

Association between single and mixed exposure to polycyclic aromatic hydrocarbons and biological aging

Frontiers in Public Health
BackgroundAging is one of the most important public health issues. Previous studies on the factors affecting aging focused on genetics and lifestyle, but the association between polycyclic aromatic hydrocarbons (PAHs) and aging is still unclear ...
Zuqiang Fu, Xianli Zhang, Chunyu Zhong, Zhe Gao, Qing Yan   +4 more
doaj   +1 more source

Silent Partners in the Mill: Unveiling the Role of Additives in Mechanochemical Synthesis

Chemistry – A European Journal, EarlyView.
Mechanochemistry offers a sustainable, solvent‐free alternative to traditional synthesis, often enhanced by additives in a process known as additive‐assisted grinding. This review discusses how various additives, including liquids, ionic solids, and advanced materials like ionic liquids and piezoelectric compounds, improve reaction efficiency ...
Johanna Breinsperger, Nika Podlesnik, Francesco Mele, Michael Schnürch   +3 more
wiley   +1 more source

A micromethod for the determination of glycocyamine in biological fluids and tissue extracts [PDF]

, 1941
In the two following communications (1, 2) evidence is presented that glycocyamine is a normal precursor of creatine in the animal body. These studies required a satisfactory micromethod for the determination of glycocyamine.
Borsook, Henry, Dubnoff, Jacob W.
core  

Kinetics and mechanism of the conversion of cyclobutenones to vinylketens [PDF]

, 1976
The structure–rate relationships for the electrocyclic ring opening of phenylated and alkylated cyclobutenones to vinylketens, though not fully understood, resemble those which are observed in cyclobutene ring ...
Huisgen, Rolf, Mayr, Herbert
core   +1 more source