ChemInform Abstract: Ring Opening of N-(Tetraalkylamidinio)pyridinium Salts by Anions of CH-Acidic Methylene Compounds.

ChemInform ◽  
1987 ◽  
Vol 18 (11) ◽  
Author(s):  
B. FEITH ◽  
H.-M. WEBER ◽  
G. MAAS
Keyword(s):  
Ring Opening ◽  
Pyridinium Salts

Synthesis of Nitrogen Heterocycles by the Ring Opening of Pyridinium Salts

2006 ◽  
Vol 45 (46) ◽  
pp. 7803-7806 ◽  
Author(s):  
Aaron M. Kearney ◽  
Christopher D. Vanderwal
Keyword(s):  
Ring Opening ◽  
Nitrogen Heterocycles ◽  
Pyridinium Salts

Synthesis of Nitrogen Heterocycles by the Ring Opening of Pyridinium Salts

2006 ◽  
Vol 118 (46) ◽  
pp. 7967-7970 ◽  
Author(s):  
Aaron M. Kearney ◽  
Christopher D. Vanderwal
Keyword(s):  
Ring Opening ◽  
Nitrogen Heterocycles ◽  
Pyridinium Salts

scholarly journals Skeletal remodeling of chalcone-based pyridinium salts to access isoindoline polycycles and their bridged derivatives

2021 ◽  
Author(s):  
Lele Wang ◽  
Hua-Bin Han ◽  
Lijie Gu ◽  
Wenjing Zhang ◽  
Junwei Zhao ◽  
...  
Keyword(s):  
Ring Opening ◽  
Pyridinium Salts ◽  
Pyridinium Ring ◽  
Skeletal Reconstruction

Simultaneous deconstructive ring-opening and skeletal reconstruction of an inert, aromatic pyridinium ring is of great importance in synthetic communities. However, research in this area is still in its infancy. Here,...

Reactivity of pseudobases from pyridinium salts competition between hydrogen transfer and ring-opening reactions

Tetrahedron ◽  
1979 ◽  
Vol 35 (21) ◽  
pp. 2591-2593 ◽  
Author(s):  
F.Micheletti Moracci ◽  
S. Tortorella ◽  
B. Di Rienzo ◽  
F. Liberatore
Keyword(s):  
Ring Opening ◽  
Hydrogen Transfer ◽  
Pyridinium Salts ◽  
Ring Opening Reactions

Aromatic Ring Opening of Pyridinium Salts using Carbanions formed from Malononitrile and Ethyl Cyanoacetate

1992 ◽  
Vol 2 (1) ◽  
pp. 25-26 ◽  
Author(s):  
Aleksandr S. Kiselev ◽  
Andrei A. Gakh ◽  
Aleksandr V. Samet ◽  
Victor V. Semenov
Keyword(s):  
Aromatic Ring ◽  
Ring Opening ◽  
Ethyl Cyanoacetate ◽  
Pyridinium Salts

Ring-Opening Polymerization of Pyridinium Salts

Synfacts ◽  
2008 ◽  
Vol 2008 (11) ◽  
pp. 1165-1165 ◽  
Author(s):  
I. Yamaguchi ◽  
S. Shingai ◽  
M. Sato
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Pyridinium Salts

Bio-Active Pyridinium Salts: A Mini-Review on Properties and Selected Reactions

2019 ◽  
Vol 16 (7) ◽  
pp. 610-616
Author(s):  
Andrzej Günther ◽  
Robert Pelech
Keyword(s):  
Nitrogen Atom ◽  
Nucleophilic Substitution ◽  
Ring Opening ◽  
Pyridinium Salts ◽  
Pyrylium Salts ◽  
Bioactive Properties ◽  
Valuable Compounds

Pyridium salts are very valuable compounds with various activities, especially biological, and therefore their preparation can be very useful in the synthesis of various compounds, such as drugs, dyes or surfactants. In this mini-review authors focused mostly on bioactive properties of pyridinium salts, and main preparations of these compounds such, synthesis pyridinium salts from pyrylium salts via nucleophilic substitution SN(ANRORC), obtaining pyridinium salts via directs arylation, and via Addition at Nitrogen atom, and the last method is synthesis of pyridinium salts via ring opening and re-cyclisation.

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