Synthesis of fused ring 1,2,4-triazoles by intramolecular cycloaddition of nitrile imines to the nitrile function

1976 ◽  
Vol 13 (6) ◽  
pp. 1339-1341 ◽  
Author(s):  
Luisa Garanti ◽  
Angelo Scandroglio ◽  
Gaetano Zecchi
Keyword(s):  
Intramolecular Cycloaddition ◽  
Fused Ring ◽  
Nitrile Imines

A stereocontrolled intramolecular cycloaddition – sigmatropic rearrangement approach to a tricyclo[7.4.01,6.01,10]tridecane precursor for (±) gascardic acid

1991 ◽  
Vol 69 (1) ◽  
pp. 77-83 ◽  
Author(s):  
Gervais Bérubé ◽  
Alex G. Fallis
Keyword(s):  
Key Words ◽  
Potassium Salt ◽  
Sigmatropic Rearrangement ◽  
Diels Alder ◽  
Allylic Oxidation ◽  
Intramolecular Cycloaddition ◽  
Fused Ring ◽  
In Situ Generation ◽  
Acid Precursor

A general intramolecular Diels–Alder anionic oxy-Cope strategy for the synthesis of tricyclic skeletons and its application to the preparation of the gascardic acid precursor 21 is described. In situ generation of the appropriate cyclopentadiene 9 by isomerization (Et3N) afforded the [4+2] adduct directly or with EtAlCl2 as catalyst. The requisite potassium salt of the 1,5 diene 16 rearranged with concomitant epimerization at 67 °C to the fused ring ketone 18. Selective allylic oxidation and reduction provided 21. Key words: Diels–Alder, oxy-Cope, sesterterpene, synthesis, cycloaddition.

scholarly journals Reactive molecular dynamics simulation of the high-temperature pyrolysis of 2,2′,2′′,4,4′,4′′,6,6′,6′′-nonanitro-1,1′:3′,1′′-terphenyl (NONA)

RSC Advances ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. 5507-5515
Author(s):  
Liang Song ◽  
Feng-Qi Zhao ◽  
Si-Yu Xu ◽  
Xue-Hai Ju
Keyword(s):  
Molecular Dynamics ◽  
High Temperature ◽  
Molecular Dynamics Simulation ◽  
Molecular Dynamics Simulations ◽  
Dynamics Simulation ◽  
Reactive Molecular Dynamics ◽  
Ring Compounds ◽  
Fused Ring ◽  
Dynamics Simulations

The bimolecular and fused ring compounds are found in the high-temperature pyrolysis of NONA using ReaxFF molecular dynamics simulations.

High-Performance and Low-Energy Loss Organic Solar Cells with Non-fused Ring Acceptor by Alkyl Chain Engineering

2021 ◽  
pp. 129768
Author(s):  
Dou Luo ◽  
Xue Lai ◽  
Nan Zheng ◽  
Chenghao Duan ◽  
Zhaojin Wang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Energy Loss ◽  
Organic Solar Cells ◽  
High Performance ◽  
Alkyl Chain ◽  
Low Energy ◽  
Fused Ring

scholarly journals Enhancing photovoltaic performance via aggregation dynamics control in fused‐ring electron acceptor

Aggregate ◽  
2021 ◽  
Author(s):  
Jiayu Wang ◽  
Runyu Zhu ◽  
Shijie Wang ◽  
Yawen Li ◽  
Boyu Jia ◽  
...  
Keyword(s):  
Electron Acceptor ◽  
Photovoltaic Performance ◽  
Fused Ring

Hydroxylamines as One-Atom Nitrogen Sources for Metal-Catalyzed Cycloadditions

Synthesis ◽  
2021 ◽  
Author(s):  
Xinjun Luan ◽  
Jingxun Yu
Keyword(s):  
Transition Metal ◽  
Nitrogen Source ◽  
Nucleophilic Reagent ◽  
Nitrogen Sources ◽  
Short Review ◽  
Indole Derivatives ◽  
Electrophilic Amination ◽  
Intramolecular Cycloaddition ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

AbstractTransition-metal-catalyzed C–N bond formation is one of the most important pathways to synthesize N-heterocycles. Hydroxylamines can be transformed into a nucleophilic reagent to react with a carbon cation or coordinate with a transition metal; it can also become an electrophilic nitrogen source to react with arenes, alkenes, and alkynes. In this short review, the progress made on transition-metal-catalyzed cycloadditions with hydroxylamines as a nitrogen source is summarized.1 Introduction2 Cycloaddition To Form Aziridine Derivatives2.1 Intramolecular Cycloaddition To Form Aziridine Derivatives2.2 Intermolecular Cycloaddition To Form Aziridine Derivatives3 Cycloaddition To Form Indole Derivatives4 Cycloaddition To Form Other N-Heterocycles4.1 Aza-Heck-Type Amination Reactions4.2 Nitrene Insertion Amination Reactions4.3 Intramolecular Nucleophilic and Electrophilic Amination Reactions5 Conclusion and Outlook

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