Results 21 to 30 of about 388 (112)
, 2014 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
Synthesis of optically active polyheterocycles containing pyrrolidine, imidazole, and 1,2,3-triazole rings [PDF]
, 2015 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
Metathesis Approach to the Synthesis of Polyheterocyclic Structures from Oxanorbornenes [PDF]
Organic Letters, 2004 AbstractFor Abstract see ChemInform Abstract in Full Text.
Jeffrey D, Winkler +3 more
openaire +2 more sources
Poly(3-alkyltellurophene)s Are Solution-Processable Polyheterocycles
, 2016 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
Advanced Synthesis &Catalysis, Volume 367, Issue 6, March 18, 2025.Abstract The synthesis of architecturally complex polyheterocyclic structures embedding the indole ring represents a growing field of interest. Carbolines and their partially dehydro derivatives, pyrazinoindoles, indoloindoles, azepinoindoles and other medium‐sized derivatives are only some examples of indole‐containing polycyclic compounds featured by
Alessandro Palmieri, Marino Petrini
wiley +1 more source
Molybdenum‐Catalyzed Direct Synthesis of Pyrroles from Nitroarenes with Glycols as Reductants
Advanced Synthesis &Catalysis, Volume 367, Issue 4, February 18, 2025.Abstract A molybdenum‐catalyzed synthesis of N‐(hetero)aryl pyrroles directly from inexpensive and commonly available (hetero)nitroarenes via reduction with pinacol and annulation with 1,4‐dicarbonyls or cyclobutane‐1,2‐diols has been described. The process does not require an inert atmosphere and tolerates the presence of air and water. This non‐noble
Sara Gómez‐Gil +3 more
wiley +1 more source
The Concept of Polyheterocyclic Strategy
, 1997 This strategy is a synthetic procedure for the synthesis of molecules with multiple linked heterocyclic rings. This is important in fields such as medicine and materials science due to the diverse biological activities of these molecules, including antitumor and antimicrobial properties, as well as other valid applications.
openaire +2 more sources
, 2016 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
, 2016 An efficient protocol for the direct transformation of chroman-4-ones to tricyclic fused pyridines with the skeleton of cassiarins, a family of alkaloids with antimalarial activity, was developed.
Yunhui Bin (2067283) +3 more
core +3 more sources
Chemistry – A European Journal, Volume 31, Issue 1, January 2, 2025.This review outlines and showcases how aminocatalytic dienamines and trienamines can be used in stereoselective cascade reactions, that are initiated by a cycloaddition reaction to rapidly access complex chiral molecules. We aspire that the chemical community can use this review to design new cascade reaction or use current methodologies in complex ...
Jonas Faghtmann +3 more
wiley +1 more source