Results 71 to 80 of about 128,452 (331)
Nature Communications, 2017 Fused N-heterocycles are structural motifs observed in natural products and bioactive compounds. Here, the authors developed divergent copper- and gold-catalyzed oxidative cyclizations of diynes to two types of tricyclic N-heterocycles and rationalized ...
Wen-Bo Shen +7 more
doaj +1 more source
Dibenzonaphthyridinones: Heterocycle-to-Heterocycle Synthetic Strategies and Photophysical Studies [PDF]
Organic Letters, 2015 A heterocycle-to-heterocycle strategy is presented for the preparation of highly fluorescent and solvatochromic dibenzonaphthyridinones (DBNs) via methodology that leads to the formation of a tertiary, spiro-fused carbon center. A linear correlation between the results of photophysical experiments and time dependent density functional theory ...
Palazzo, Teresa A +7 more
openaire +4 more sources
Advanced Optical Materials, EarlyView.The newly developed regioselective strategy for the para‐functionalization of C(sp3)‐bridged phosphorus‐centered heterotriangulene delivers a series of donor‐acceptor emitters exhibiting thermally activated delayed fluorescence. The carbazole‐substituted compounds feature a unique combination of high photoluminescence quantum yields up to 75%, deep ...
Maximilian Schöner +8 more
wiley +1 more source
Thioether-catalysed tandem synthesis of furans and cyclic ethers or lactones [PDF]
, 2017 Acyclic conjugated ynenediones tethered to an alcohol or carboxylic acid are converted into furanyl-substituted cyclic ethers or lactones in a single step by treatment with the tetrahydrothiophene.
Clark, J. Stephen, Klaus, Verena
core +1 more source
Advanced Synthesis &Catalysis, EarlyView.A novel methodology for the construction of aromatic and heteroaromatic trifluoropropynyl derivatives has been developed. The new protocol is based on a tandem Sonogashira cross‐coupling reaction between a bench‐stable trifluoropropynyl carbinol reagent, generated from the commercially available and inexpensive hydrofluoroolefin‐1234yf gas, and (hetero)
Emma Bodnár +3 more
wiley +1 more source
ChemistryOpenHeterocycles are a vital class of compounds in numerous fields, including drug discovery, agriculture, and materials science. Efficient methods for the synthesis of heterocycles remain critical for meeting the demands of these industries. Recent advances
Ramin Javahershenas +3 more
doaj +1 more source
Recent Discovery of Nitrogen Heterocycles from Marine-Derived Aspergillus Species
Marine DrugsNitrogen heterocycles have drawn considerable attention because of their structurally novel and significant biological activities. Marine-derived fungi, especially the Aspergillus species, possess unique metabolic pathways to produce secondary ...
Jueying Shi +8 more
doaj +1 more source
Journal of Chemistry, 2015 Aromaticities of five membered heterocycles, containing up to three heteroatoms, are quantified through the dimethyldihydropyrene (DHP) probe. Bond fixation caused by the fusion of heterocycles to the dimethyldihydropyrene nucleus (DHPN) was measured by ...
Maria, Khurshid Ayub
doaj +1 more source
Advanced Synthesis &Catalysis, EarlyView.A domino aldol condensation–intramolecular vinylogous aldol condensation process was implemented for the first time to enable access to a wide range of novel 5‐acylated indolizines with a hydrogen, an alkyl, an aryl, or an alkoxy moiety at the C7 site.
Dohui Ku, Sunhee Lee, Ikyon Kim
wiley +1 more source