Results 51 to 60 of about 2,054 (167)

Substitutive Approach Toward Heteroaromatic Amino Alcohols Accessed Through Dioxolanyl Radical Linchpin

Advanced Synthesis &Catalysis, Volume 368, Issue 7, 1 April 2026.
A dioxolanyl linchpin has been used to synthesize aryl ethanolamines from readily available aryl bromide and amine starting materials using a metallaphotoredox/substitution telescoped sequence. This combinatorial approach allows for a wide synthetic scope of both heteroarenes and cyclic amines. Aryl ethanolamines are an important functional group found
Justin J. Chang, Munnu Kumar, Ryan C. Kashatus, Dylan J. Tomaselli, Daniel K. Kim   +4 more
wiley   +1 more source

Inter‐and Intramolecular (4+3) Cycloadditions With Epoxy Allylsilanes as Dienophiles

Chemistry – An Asian Journal, Volume 21, Issue 7, 14 April 2026.
Methylenated cycloheptanoids are synthesized by formal (4+3) cycloadditions of dienes with epoxy allylsilanes as dienophiles in the presence of catalytic amounts of TESOTf. Intermolecular and intramolecular (4+3) cycloadditions with dienes including furans, cyclopentadiene, pyrroles, thiophenes, and benzenes proceeded to provide polycyclic adducts in ...
Qin Han Teo, Yuchen Zhou, Elizabeth H. Krenske, Pauline Chiu   +3 more
wiley   +1 more source

Bifunctional Reduced Graphene Oxide Derivatives for PFOA Adsorption

ChemistryEurope, Volume 4, Issue 4, April 2026.
A bifunctional graphene‐based material is developed for selective PFAS adsorption from water. Thermally reduced graphene oxide is modified with quaternary ammonium groups and fluorinated chains, promoting electrostatic and fluorine–fluorine interactions. Surface functionality is characterized by X‐ray photoelectron spectroscopy, atomic force microscopy,
Robert Schusterbauer, Pia Schünemann, Philip Nickl, Jasmin Er, Victoria Kämmer, Florian Junge, Salim Fazzani, Paul Mrkwitschka, Björn Meermann, Rainer Haag, Ievgen Donskyi   +10 more
wiley   +1 more source

Skeletal Editing from Pyridine to Aniline via C‐Insertion and N‐Isomerization

ChemistryEurope, Volume 4, Issue 4, April 2026.
A concise protocol is presented that converts pyridines into anilines by externalizing the original pyridine nitrogen at either the "ipso" or "ortho" position, which results in para or meta‐primary aniline products. A key carbene‐insertion step precedes nitrogen migration, preserving both ring size and overall structure.
Yun Luo, Jing Dai, Yongchang Wei, Chang Min   +3 more
wiley   +1 more source

Copper‐ and Silver‐Catalyzed Reactions of Active Methylene Isocyanides: Facile Access to Highly Substituted Five‐ and Six‐Membered Heterocycles

Chemistry – A European Journal, Volume 32, Issue 13, 1 April 2026.
This review summarizes recent advances in copper‐ and silver‐catalyzed reactions of active methylene isocyanides for the synthesis of highly substituted five‐ and six‐membered heterocycles. Emphasis is placed on [3+n] cycloadditions, annulations, and asymmetric strategies, highlighting current limitations and future opportunities in heterocycle ...
Jimil George, Kyungsoo Oh
wiley   +1 more source

α,β-Aziridinylphosphonates by lithium amide-induced phosphonyl migration from nitrogen to carbon in terminal aziridines

Beilstein Journal of Organic Chemistry, 2010
N-Phosphonate terminal aziridines undergo lithium 2,2,6,6-tetramethylpiperidide-induced N- to C-[1,2]-anionic phosphonyl group migration under experimentally straightforward conditions, to provide a stereocontrolled access to synthetically valuable trans-
David. M. Hodgson, Zhaoqing Xu
doaj   +1 more source

Engineered Cellulose: A Multifunctional Platform for Next‐Generation Sustainable Environmental Technologies

EcoMat, Volume 8, Issue 4, April 2026.
Engineered cellulose—enabled by functionalization, hybridization, and nano‐engineering—emerges as a versatile platform driving next‐generation solutions in water purification, CO2 capture, air filtration, soil remediation, energy storage, and sustainable packaging. ABSTRACT Engineered cellulose is redefining the frontier of sustainable materials in the
Amir Hossein Behroozi, Tizazu H. Mekonnen   +1 more
wiley   +1 more source

Intramolecular Azide to Alkene Cycloadditions for the Construction of Pyrrolobenzodiazepines and Azetidino-Benzodiazepines

Molecules, 2014
The coupling of proline- and azetidinone-substituted alkenes to 2-azidobenzoic and 2-azidobenzenesulfonic acid gives precursors that undergo intramolecular azide to alkene 1,3-dipolar cycloadditions to give imine-, triazoline- or aziridine-containing ...
Karl Hemming, Christopher S. Chambers, Faisal Jamshaid, Paul A. O'Gorman   +3 more
doaj   +1 more source

Facile and Green Synthesis of Saturated Cyclic Amines

Molecules, 2017
Single-nitrogen containing saturated cyclic amines are an important part of both natural and synthetic bioactive compounds. A number of methodologies have been developed for the synthesis of aziridines, azetidines, pyrrolidines, piperidines, azepanes and
Arruje Hameed, Sadia Javed, Razia Noreen, Tayyaba Huma, Sarosh Iqbal, Huma Umbreen, Tahsin Gulzar, Tahir Farooq   +7 more
doaj   +1 more source

Copper(I)-catalyzed asymmetric decarboxylative Mannich reaction enabled by acidic activation of 2H-azirines

Nature Communications, 2019
Due to their poor electrophilicity, 2H-azirines do not easily react with nucleophiles. Here, the authors show an acidic activation of 2H-azirines by cyanoacetic acid coupling partners affording chiral aziridines containing vicinal tetrasubstituted and ...
Hai-Jun Zhang, Yan-Cheng Xie, Liang Yin
doaj   +1 more source