Consecutive Cycloaddition/S(N)Ar/Reduction/Cyclization/Oxidation Sequences: A Copper-Catalyzed Multicomponent Synthesis of Fused N-Heterocycles. 2015

Feng-Cheng Jia, and Cheng Xu, and Zhi-Wen Zhou, and Qun Cai, and Deng-Kui Li, and An-Xin Wu

A highly efficient multicomponent domino protocol has been developed for the synthesis of 5-phenyl-[1,2,3]triazolo[1,5-c]quinazolines from simple and readily available (E)-1-bromo-2-(2-nitrovinyl)benzenes, aldehydes, and sodium azide. This elegant domino process involved consecutive [3 + 2] cycloaddition, copper-catalyzed S(N)Ar, reduction, cyclization, and oxidation sequences. Notably, sodium azide acted as a dual nitrogen source in the construction of this novel fused N-heterocycle.

UI MeSH Term Description Entries
D010084 Oxidation-Reduction A chemical reaction in which an electron is transferred from one molecule to another. The electron-donating molecule is the reducing agent or reductant; the electron-accepting molecule is the oxidizing agent or oxidant. Reducing and oxidizing agents function as conjugate reductant-oxidant pairs or redox pairs (Lehninger, Principles of Biochemistry, 1982, p471). Redox,Oxidation Reduction
D011799 Quinazolines A group of aromatic heterocyclic compounds that contain a bicyclic structure with two fused six-membered aromatic rings, a benzene ring and a pyrimidine ring. Quinazoline
D003300 Copper A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55. Copper-63,Copper 63
D006571 Heterocyclic Compounds Cyclic compounds that include atoms other than carbon in their ring structure. Heterocyclic Compound,Compound, Heterocyclic,Compounds, Heterocyclic
D001386 Azides Organic or inorganic compounds that contain the -N3 group. Azide
D015394 Molecular Structure The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds. Structure, Molecular,Molecular Structures,Structures, Molecular
D061565 Cycloaddition Reaction Synthetic organic reactions that use reactions between unsaturated molecules to form cyclical products. Cycloaddition,Cycloaddition Reaction Techniques,Diels-Alder Reaction,Cycloaddition Reaction Technique,Cycloaddition Reactions,Diels Alder Reaction,Reaction Technique, Cycloaddition,Reaction Techniques, Cycloaddition,Reaction, Cycloaddition,Reaction, Diels-Alder,Reactions, Cycloaddition,Technique, Cycloaddition Reaction,Techniques, Cycloaddition Reaction

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