Results 51 to 60 of about 10,249 (213)

Diazirines Beyond Photoaffinity Labeling: A Comprehensive Overview of Applications in Biological Sciences, Materials Chemistry, and NMR‐Spectroscopy

open access: yesAngewandte Chemie, Volume 138, Issue 4, 22 January 2026.
Diazirines are three‐membered, nitrogen‐containing heterocycles that decompose under light or heat to generate carbenes. For the past two decades, they have served mainly as minimally invasive tags in photoaffinity labeling (PAL). More recently, their value as versatile carbene precursors has been recognized.
Dominik Schnalzer   +4 more
wiley   +2 more sources

(E)-N-[Cyclopentyl(morpholin-4-yl)methylidene]-4-fluorobenzenesulfonamide

open access: yesIUCrData, 2016
The title compound, C16H21FN2O3S, was obtained from the reaction between sulfonyl azide, cyclohexanone and morpholine. The bond lengths at the amidine N—C—N grouping are similar [1.326 (3) and 1.338 (3) Å], indicating significant conjugation.
Ilya Efimov   +3 more
doaj   +1 more source

A catalytic asymmetric total synthesis of (-)-perophoramidine [PDF]

open access: yes, 2014
We report a catalytic asymmetric total synthesis of the ascidian natural product perophoramidine. The synthesis employs a molybdenum-catalyzed asymmetric allylic alkylation of an oxindole nucleophile and a monosubstituted allylic electrophile as a key ...
Krüger, Sebastian   +3 more
core   +3 more sources

Thermodynamically Reinforced Dual‐Interface 1D/3D Tin‐Lead Perovskite Heterostructure for Stable All‐Perovskite Tandem Solar Cells

open access: yesAdvanced Science, EarlyView.
A π‐conjugated diammonium additive is employed to engineer a dual‐interface 1D/3D perovskite heterostructure. π‐π stacking 1D perovskitoids act as nucleation templates to relieve tensile strain and intra‐/intergranular disorder and then encapsulate the 3D bulk to fortify the Sn‐I octahedral framework. The all‐perovskite tandem devices based 1D/3D Sn‐Pb
Hui Li   +4 more
wiley   +1 more source

18F‐Radiopharmaceutical Diversification Enabled by Deaminative Cross‐Electrophile Couplings

open access: yesAngewandte Chemie, Volume 138, Issue 4, 22 January 2026.
A general Ni‐mediated (C)sp2–(C)sp3 cross‐coupling expedites access to 18F‐radiopharmaceuticals, essential for positron emission tomography imaging and drug discovery. This late‐stage diversification approach was implemented across three user‐friendly automated protocols affording 18F‐radiotracers in sufficient quantities for imaging.
Isabella F. Ogilvy   +13 more
wiley   +2 more sources

The Synthesis of Dicationic Extended Bis-Benzimidazoles

open access: yesMolecules, 2004
The synthesis of extended dicationic bis-benzimidazoles starting from trans-1,2-bis(4-cyanophenyl)ethene and trans-1,2-bis(4-cyanophenyl)cyclopropane is reported. The target diamidines show significant in vitro activity against B. subtilis.
David W. Boykin   +2 more
doaj   +1 more source

(β-D-ribofuranosyl)formamidine in the design and synthesis of 2-(β-D-ribofuranosyl)pyrimidines, including RF-containing derivatives [PDF]

open access: yes, 2013
A wide range of novel 2-(β-D-ribofuranosyl)pyrimidines, including RF-containing derivatives, have been synthesized by the reaction of (β-D-ribofuranosyl)formamidine with various dielectrophilic substrates such as 3-alkoxy- and 3-chloro-1-(polyfluoroalkyl)
Adlington   +48 more
core   +1 more source

Cell‐Free DNA‐Based Theranostics for Inflammatory Disorders

open access: yesAdvanced Science, EarlyView.
Summary on the dual potential of cfDNA as biomarkers and therapeutic targets for inflammatory disorders. Figure was created with BioRender.com. ABSTRACT Inflammatory disorders are characterized by immune‐mediated inflammatory cascades that can affect multiple organs.
Jiatong Li   +7 more
wiley   +1 more source

Formamidines with antinociceptive and antiinflammatory activities [PDF]

open access: yes, 1991
Pursuing our investigations on 7-amino-2,3-polymethyleneindole derivatives, a set of 7-(dimethylaminomethylene)-amino-2,3-polymethyleneindoles, together with some other aryl or cycloalkyl substituted formamidines, were prepared and tested for analgesic ...
Boatto, Gianpiero   +6 more
core  

Design and synthesis of a fragment set based on twisted bicyclic lactams

open access: yes, 2018
Current fragment sets tend to be dominated by flatter molecules, and their shape diversity does not reflect that of the fragments that are theoretically possible.
Hassan, H, Marsden, S, Nelson, AS
core   +1 more source

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