Photoassisted Synthesis of Enantiopure Alkaloid Mimics Possessing Unprecedented Polyheterocyclic Cores [PDF]
Journal of the American Chemical Society, 2013 Enantiopure alkaloid mimics are synthesized via high yielding intramolecular cycloadditions of photogenerated azaxylylenes tethered to pyrroles, with further growth of molecular complexity via post-photochemical transformations of primary photoproducts.
N N Bhuvan, Kumar +2 more
openaire +2 more sources
Advanced Functional Materials, Volume 34, Issue 14, April 3, 2024.The control on the direct functionalization of single‐walled carbon nanotubes with the organophotocatalyst PTH allowed the creation of hybrid materials with enhanced charge transfer properties able to overcome homogeneous counterparts in the photoreductive debromination of aromatic halides with a robust character toward the stability during operation ...
José Luis Nova‐Fernández +8 more
wiley +1 more source
Pd(II)-Catalyzed [4 + 2] Heterocyclization Sequence for Polyheterocycle Generation [PDF]
Organic Letters, 2018 A new Pd(II)-catalyzed cascade sequence for the formation of polyheterocycles, from simple starting materials, is reported. The sequence is applicable to both indole and pyrrole substrates, and a range of substituents are tolerated. The reaction is thought to proceed by a Pd(II)-catalyzed C-H activated Heck reaction followed by a second Pd(II ...
Elizabeth L. Glaisyer +2 more
openaire +4 more sources
Visible‐Light‐Driven Cyclizations
Advanced Synthesis &Catalysis, Volume 366, Issue 4, Page 635-697, February 20, 2024.Abstract In recent years, the interest to develop cyclizations promoted by visible light has been gaining a lot of attention due to its sustainability aspect. In this review, we summarize the most important advances in this period by describing the methods used to generate different ring sizes, while focusing on the mechanistic details of these ...
Emilia Oueis, Mirella Elkadi, Ramon Rios
wiley +1 more source
Determination of diffusion coefficients in polypyrrole thin films using a current pulse relaxation method [PDF]
The current pulse E sub oc relaxation method and its application to the determination of diffusion coefficients in electrochemically synthesized polypyrrole thin films is described. Diffusion coefficients for such films in Et4NBF4 and MeCN are determined
Martin, Charles R. +2 more
core +1 more source
New secondary batteries utilizing electronically conductive polymer cathodes [PDF]
The objectives are to optimize the transport rates in electronically conductive polypyrrole films by controlling the morphology of the film and to assess the utility of these films as cathodes in a lithium/polypyrrole secondary battery.
Martin, Charles R., White, Ralph E.
core +1 more source
Pd-Catalyzed de Novo Assembly of Diversely Substituted Indole-Fused Polyheterocycles [PDF]
, 2019 Here we describe a facile, tandem synthetic route for indolo[3,2-c]quinolinones, a class of natural alkaloid analogues of high biological significance. A Ugi four-component reaction with indole-2-carboxylic acid and an aniline followed by a Pd-catalyzed ...
Butera, Roberto +6 more
core +1 more source
Ferrocén-szubsztituált heterociklusok és származékaik szintézise, szerkezetigazolása és komplex spektroszkópiai vizsgálata = Synthesis, structure determination and complex spectroscopic study of ferrocene-substituted heterocycles and their derivatives [PDF]
, 2007 Új, mono- és poliheterociklusokkal egyszeresen és többszörösen szubsztituált ferrocénszármazékokat állítottunk elő. Szerkezetüket komplex nagyműszeres vizsgálatokkal (IR, MS, röntgendiffrakció, multinukleáris NMR) derítettük fel.
Csámpai, Antal +4 more
core
Anomalous optical and ESR properties of doped polydiethynylsilanes [PDF]
, 1991 Journal ArticleThe optical, transport, and ESR properties of soluble conducting four-membered polydiethynylsilane heterocycles are described. The undoped one-dimensional gap is 2.0 eV in both films and solutions; no photoluminescence is observed.
Ni, Q.-X., Vardeny, Zeev Valentine
core
Post-Ugi Cyclization for the Construction of Diverse Heterocyclic Compounds: Recent Updates [PDF]
, 2018 Multicomponent reactions (MCRs) have proved as a valuable tool for organic and medicinal chemist because of their ability to introduce a large degree of chemical diversity in the product in a single step and with high atom economy.
Erik V. Van der Eycken +4 more
core +1 more source