Results 51 to 60 of about 88,292,358 (173)

Synthesis of novel phosphorylated chrysin derivatives by 1, 3-dipolar cycloaddition reaction

open access: yesPhosphorus, Sulfur, and Silicon and the Related Elements, 2016
Through 1,3-dipolar cycloaddition reaction, 1,4,5-trisubstituted-1,2,3-triazole and phosphate-containing chrysin derivatives were synthesized with high yields. The target compounds were characterized by 1H, 31P, 13C NMR spectroscopy and HRMS.
Shaohua Zhu   +5 more
openaire   +1 more source

Farnesyltransferase Enables Modular Assembly of Dual‐Functional Nanobody Conjugates for in Vivo Imaging of Inflammation

open access: yesAngewandte Chemie, Volume 138, Issue 42, 12 October 2026.
A modular farnesyltransferase‐based chemoenzymatic platform enables fast, site‐specific labeling of nanobodies for PET imaging of inflammation. CD11b‐targeted PET agents selectively image myeloid‐driven inflammation, while CD45‐targeted PET agents provide sensitive whole‐body immune mapping.
Sneha Venkatachalapathy   +7 more
wiley   +2 more sources

Bromonitroalkanes in Organic Synthesis

open access: yesEuropean Journal of Organic Chemistry, EarlyView.
α,α‐Bromonitroalkanes (BNAs) exhibit chameleon‐like reactivity, serving as carbene, radical, carbanion, and carbocation synthons. This mini‐review summarizes the different reaction modes and highlights recent developments in thermal and photochemical processes. α,α‐Bromonitroalkanes (BNAs) exhibit chameleon‐like reactivity, serving as carbene, radical,
Magdalena Koch, Oliver Reiser
wiley   +1 more source

Oxaziridines: Versatile Reagents in Modern Organic Synthesis

open access: yesThe Chemical Record, EarlyView.
Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra   +2 more
wiley   +1 more source

Structural and mutational analysis of Methanosarcina mazei prenylated FMN synthase reveals the basis of its unique prenyl donor substrate specificity

open access: yesThe FEBS Journal, EarlyView.
Some prenylated flavin mononucleotide (prFMN) synthases exceptionally prefer dimethylallyl phosphate (DMAP) over dimethylallyl diphosphate (DMAPP), which is a common prenyl donor substrate for many prenyltransferases. Structural and mutagenic analyses of Methanosarcina mazei prFMN synthase, which prefers DMAP but can also accept DMAPP, elucidated its ...
Sou Fukuhara   +5 more
wiley   +1 more source

Catalytic Enantioselective 1,3-Dipolar Cycloadditions between Nitrones and Alkenes Using a Novel Heterochiral Ytterbium(III) Catalyst

open access: yes, 2016
Catalytic Enantioselective 1,3-Dipolar Cycloadditions between Nitrones and Alkenes Using a Novel Heterochiral Ytterbium(III ...
Shū Kobayashi (2450098)   +1 more
core   +1 more source

Studies in Conjugated lmines: Nucleophilic Additions and the 1 ,3-Dipolar Cycloadditions

open access: yes, 1970
Studies in Conjugated lmines: Nucleophilic Additions and the 1 ,3-Dipolar ...
Singh, Nazar, P. S. Sethi
openaire   +1 more source

Bioorthogonal Chemistry in Neurobiology: From Imaging to Proteomics

open access: yesChemBioChem, Volume 27, Issue 20, 28 October 2026.
This review highlights emerging strategies for labeling neuronal proteins, enabling visualization and quantitative analysis of their expression, localization, and dynamics. By combining genetic code expansion (GCE), metabolic labeling, and click chemistry‐based labeling, these approaches provide powerful routes to study proteins in specific cells and ...
Neil Taylor   +2 more
wiley   +1 more source

Asymmetric 1,3-Dipolar Cycloadditions of Cyclic Stabilized Ylides Derived from Chiral 1,2-Amino Alcohols

open access: yes, 2006
International audienceThe use of structurally similar chiral non-racemic azomethine ylides, nitrones and azomethine imines derived from 1,2-aminol alcohols in asymmetric dipolar cycloadditions is reviewed.
Chauveau, Ariane   +2 more
core   +1 more source

Synthesis, Physicochemical Characteristics, Self‐Assembly and Encapsulation Ability of per‐Ethylene‐Glycol‐Functionalized Resorcin[4]Arenes and Their Molecular Capsules: On the Road to Liquid Capsules

open access: yesChemistry – A European Journal, Volume 32, Issue 40, 27 October 2026.
Per‐ethylene‐glycol (EG)‐functionalized resorcin[4]arenes containing 12, 16, and 20 EG groups namely compounds 1d, 1e, and 1f, respectively, were prepared and found to self‐assemble, in organic solvents, into hexameric capsules. These capsules are more dynamic than the ones prepared based on alkyl substituted resorcin[4]arenes.
Gangadhara Angajala   +3 more
wiley   +1 more source

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