Results 71 to 80 of about 18,532 (197)
Zeitschrift für Naturforschung B, 1972 A new synthesis has been developed for the hitherto unreported 2-substituted-3-oxo-4H-1,4-oxazines 3b-3j via the cyclodehydrohalogenation of N-aryl-N-dichloroacetyl-2-amino-4′-nitroacetophenones in dimethyl sulfoxide with potassium t-butoxide. The structures of all the oxazine derivatives have been verified by IR and NMR spectroscopy and correlations ...
openaire +1 more source
Well‐Defined Nickel Precatalysts: Form, Function, and Application
Chemistry – A European Journal, Volume 32, Issue 41, 3 November 2026.This review provides guidance on which nickel precatalysts to choose for a given application or which properties to prioritize in reaction development. A summary of the ease of synthesis, stability, diversity, accessibility, modularity, and general applicability is provided along with a related infographic.
Morgan E. John +3 more
wiley +1 more source
, 2016 Diastereoselective trans-2,5-disubstituted amino acids derived diverse morpholines, piperazines and thiomorpholines were prepared in 30 min-1 h with high yields through iodine-mediated 6-exotrig type cyclization from a single common synthetic ...
Saurav Bera (2129953) +1 more
core +1 more source
Aggregate, Volume 7, Issue 11, November 2026.Conformational fixation of donor–acceptor merocyanines modulates excited‐state relaxation and fluorescence. Viscosity‐ and aggregation‐dependent emission, combined with TDDFT calculations, reveal a strongly twisted charge‐separated state in solution and a torsionally constrained emissive state in rigid environments, establishing a unified picture of ...
Christian Muschelknautz +4 more
wiley +1 more source
, 2014 A simple and efficient, Lewis acid catalysed reductive etherification strategy for the stereoselective synthesis of cis-2,6-disubstituted morpholines and 1,4-oxathianes starting from readily available 1,5-diketones has been developed.
Gharpure, Santosh J. +3 more
core +2 more sources
Expedient and Rapid Synthesis of 1,2,3-Triazolo[5,1-c]morpholines through Palladium-Copper Catalysis
, 2009 A one-pot approach using palladium-copper as catalyst has been developed for the synthesis of morpholines fused with 1,2,3-triazole. Good regioselectivity, mild reaction conditions, high yields and short reaction time are the hallmarks of this ...
Das, Bimolendu +3 more
core +1 more source
Chemistry &Biodiversity, Volume 23, Issue 11, November 2026.Furan–chalcone derivatives (Na1–Na8) were successfully designed, synthesized, and biologically evaluated using integrated experimental and computational approaches. ABSTRACT A series of novel furan–chalcone derivatives (Na1–Na8) were synthesized and evaluated for their antimicrobial, antioxidant, DNA gyrase inhibitory, and computational properties ...
Nagaraj N Durgadasheemi, Vishal CS
wiley +1 more source
Angewandte Chemie, Volume 138, Issue 42, 12 October 2026.This work demonstrates a layer‐bridging coordination strategy of Co single atoms in COFs that promotes the formation and utilization of triplet excited states. The introduction of Co single atoms induces pronounced energy‐level splitting and enhanced spin–orbit coupling, facilitating the generation of 1O2 and O2•– for efficient photocatalytic H2O2 ...
Guoen Tang +6 more
wiley +2 more sources
Medicinal Research Reviews, Volume 46, Issue 6, Page 1897-1921, November 2026.ABSTRACT Chitinase‐3‐like‐1 (CHI3L1, also known as YKL‐40) has been recognized as a biomarker of inflammation and tissue remodeling and has now emerged as a pseudoenzymatic immune checkpoint. Recent structural, immunological, and translational studies redefine it as an active regulator of immune suppression rather than a passive disease marker. Despite
Kirti Upmanyu +2 more
wiley +1 more source
Angewandte Chemie, Volume 138, Issue 42, 12 October 2026.The use of 1,1,3,3‐tetramethyldisiloxane (TMDSO) and potassium tert‐butoxide enables direct alkylation of weakly acidic carbon–hydrogen bonds with alkyl halides. Experimental and computational studies support the formation of a substrate‐associated hydride‐like base, providing a single‐step alternative to the classical deprotonation and electrophile ...
Piers St. Onge +4 more
wiley +2 more sources