Results 31 to 40 of about 517 (172)
A series of eight new 5-aryl-benzo[f][1,7]naphthyridines were synthesized in 17 to 64% overall yields via an improved MW-assisted cascade-like one pot process (Ugi–three component reaction/intramolecular aza-Diels-Alder cycloaddition) coupled to an
Óscar Vázquez-Vera +8 more
doaj +1 more source
A new diversity-oriented synthesis pathway for the fabrication of a pyrimidine-embedded polyheterocycles library was developed for potential interactions with diverse biopolymers.
Seung Bum Park (197493) +2 more
core +1 more source
This study describes a visible-light-induced cascade reaction for preparing cyanoalkyl-containing polyheterocycles initiated by the photoinduced radical cascade addition of N-arylacrylamide derivatives using cyclic oxime esters as radical sources ...
Shan-Shan Zhu (9925702) +15 more
core +1 more source
Synthesis of optically active polyheterocycles containing pyrrolidine, imidazole, and 1,2,3-triazole rings [PDF]
Optically active polyheterocycles containing pyrrolidine, imidazole, and 1,2,3-triazole units were obtained via a multistep synthesis with the [3+2] cycloaddition of Boc-protected (S)-(pyrrolidin-2-yl)methyl azide with 2-ethynylimidazoles in the presence
Heimgartner, Heinz +2 more
core +1 more source
A highly efficient and mild protocol for the synthesis of imidazo-fused polyheterocycles via Groebke–Blackburn–Bienaymè reaction under the influence of catalytic amount of lanthanum chloride heptahydrate has been described.
Malipatel, S +4 more
core +1 more source
Mo‐Catalyzed Synthesis of N‐Polyheterocycles From Functionalized Nitroarenes and Aldehydes
Mo(VI)‐catalyzed one‐pot conversion of readily available functionalized nitroarenes and aldehydes yielded fused N‐polyheterocycles by sequential nitro reduction, imine formation, and cyclization. Using pinacol as a benign reductant, this sustainable tandem strategy suppresses side reactions and grants rapid access to diverse pharmacologically relevant ...
Raúl Martínez‐González +4 more
wiley +1 more source
Poly(3-alkyltellurophene)s Are Solution-Processable Polyheterocycles
The synthesis and characterization of a series of poly(3-alkyltellurophene)s are described. Polymers are prepared by both electrochemical and Kumada catalyst transfer polymerization methods. These polymers have reasonably high molecular weights (Mn = 5.
Theresa M. McCormick (1275276) +6 more
core +1 more source
This review summarizes microwave‐assisted transition‐metal catalysis for constructing N‐ and O‐heterocycles, highlighting rapid C–H and pre‐activated C–X activation, improved selectivity, and green synthetic efficiency. Abstract Microwave‐assisted organic synthesis provides a rapid and sustainable platform for synthesizing various heterocycles ...
Woo‐Jin Park, Ye Ri Han, Hyejeong Lee
wiley +1 more source
A base-free process to access indole-fused polyheterocycles via a highly efficient and atom-economic palladium-catalyzed intramolecular cross dehydrogenetive coupling (CDC) reaction of 4-aniline substituted coumarins, quinolinones, and pyrones has been ...
Chao Cheng (11274) +3 more
core +1 more source
The demand for robust antiviral approaches is underscored by the continued COVID‐19 spread. SARS‐CoV‐2 Nsp1, highly conserved among SARS‐CoV‐2 variants, plays a pivotal role in controlling host protein expression and viral RNA translation. A small‐molecule Nsp1 inhibitor exhibited antiviral activity against various sarbecoviruses, signifying a ...
Wan Gi Byun +7 more
wiley +2 more sources

