Results 81 to 90 of about 58,537 (265)
2-Ferrocenyl-2-[(2-ferrocenylethenyl)(morpholin-4-yl)methyl]-1,3-dithiolane
IUCrDataThe molecular structure of 2-ferrocenyl-2-[(2-ferrocenylethenyl)(morpholin-4-yl)methyl]-1,3-dithiolane, [Fe2(C5H5)2(C19H21NOS2)] or C29H31Fe2NOS2, has the ferrocenyl fragments in a trans disposition with respect to the vinyl group.
Claudia Oliva-Colunga +3 more
doaj +1 more source
Biofuels, Bioproducts and Biorefining, EarlyView.Abstract Fe‐, Co‐, and FeCo‐oxalates supported on silica gel (5 wt% metal load) were synthesized, characterized, and tested for the first time in solvent‐free furfural (FF) acetalization with C1–C8 alcohols at 70–170 °C under both conventional and microwave (MW)‐assisted conditions. The interaction of FF with linear C1–C4 alcohols yielded pincer‐shaped
Alexander Pokutsa +3 more
wiley +1 more source
Stereochemistry of 5-Co-ordinated Compounds. III. Some New Phosphine Complexes of Divalent Nickel and Cobalt. [PDF]
, 1963 Kai Jensen +4 more
openalex +1 more source
ChemistryEurope, EarlyView.The convergent total synthesis of a candidate diastereomer of amphirionin‐5 was accomplished in 22 steps via the coupling of the C1‐C16 enone segment and the C17‐C28 aldehyde segment using Stetter reaction. The overall stereochemistry of amphirionin‐5 was fully assigned, based on the comparison of spectroscopic and chiroptical data between the ...
Yusuke Ogura +7 more
wiley +1 more source
ChemistryEurope, EarlyView.The cis‐2,3‐bis(trifluoromethyl)cyclopropyl chemotype is introduced. The steric demand of this motif is intermediate between that of the heptafluoroisopropyl and prefluorotertbutyl groups; yet, it induces significantly less lipophilicity than these due to its facial polarity.
Daniel Gaviña +5 more
wiley +1 more source
MNDO Study of Nitrogen Atom Inversion in Piperazine, N,N'-Dimethylpiperazine and N,N'-Dichloropiperazine [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 1997 MNDO semi-empirical SCF MO calculations are used to study the pyramidal nitrogen atom inversion and configurational equilibria in the title compounds.
Issa Yavari +3 more
doaj
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 +3 more
wiley +1 more source
The Formation of Covalent Linkages in Lignocellulosic Biomass via the Oxocarbenium Intermediate
ChemPhysChem, EarlyView.Density functional theory models show that the hydrated and acidic hemicellulose matrix in lignocellulosic biomass can generate oxocarbenium ions. These reactive intermediates can participate in the stable formation of glycosidic lignin‐carbohydrate covalent linkages, promoting recalcitrance in plant biomass.
Eduardo Romero‐Montalvo +1 more
wiley +1 more source
ChemSusChem, Volume 18, Issue 6, March 15, 2025.Novel organic solvents with an unmodified carbohydrate core were synthesised both from D‐xylose and directly from biomass and were successfully used as reaction media for lipase biocatalysts to synthesise aliphatic and aromatic polyesters. Abstract The use of organic solvents in academic research and industry applications is facing increasing ...
Anastasia O. Komarova +8 more
wiley +1 more source