Base-catalyzed reactions. XLIII. Alkylation of heteroaromatics. XIII. Sodium-and potassium-catalyzed side-chain alkenylation of .gamma.-alkylpyridines with piperylenes

1972 ◽  
Vol 37 (18) ◽  
pp. 2799-2806 ◽  
Author(s):  
Janusz. Oszczapowicz ◽  
Herman. Pines
Keyword(s):  
Side Chain ◽  
Catalyzed Reactions ◽  
Sodium And Potassium

Photoaffinity labeling of the sodium- and potassium-activated adenosinetriphosphatase with a cardiac glycoside containing the photoactive group on the C-17 side chain

Biochemistry ◽  
1983 ◽  
Vol 22 (26) ◽  
pp. 6303-6309 ◽  
Author(s):  
Tamboue Deffo ◽  
Dwight S. Fullerton ◽  
Masaru Kihara ◽  
Reginald H. McParland ◽  
Robert R. Becker ◽  
...  
Keyword(s):  
Cardiac Glycoside ◽  
Photoaffinity Labeling ◽  
Side Chain ◽  
Sodium And Potassium

Intramolecular base-catalyzed reactions involving interaction between benzene nitro groups and ortho carbon chains

2009 ◽  
Vol 74 (5) ◽  
pp. 811-833 ◽  
Author(s):  
Jiří Hanusek ◽  
Vladimír Macháček
Keyword(s):  
Nitro Group ◽  
Benzene Ring ◽  
Chemical Interaction ◽  
Carbon Chain ◽  
Side Chain ◽  
Azoxy Compounds ◽  
Carbon Chains ◽  
Catalyzed Reactions

The review is focused on the understanding of processes involving chemical interaction between benzene nitro group and ortho carbon chain containing heteroatom (N, O, S) adjacent to the ring. In most cases these compounds undergo base-catalyzed cyclization to give heteroaromatic N-oxides that can be subsequently transformed to related heterocycles under the same conditions. However, in some cases, depending on substitution of the benzene ring, side chain or the base used, the formation of other compounds – both heterocyclic and non-heterocyclic such as nitroso and azoxy compounds, spiro Meisenheimer adducts – is observed. Review with 31 references.

Polyether carboxylic acids incorporating a benzodioxinic subunit: synthesis and complexing ability of sodium and potassium

1992 ◽  
Vol 70 (3) ◽  
pp. 828-835 ◽  
Author(s):  
Pascal Bosseray ◽  
Gérard Coudert ◽  
Gérald Guillaumet ◽  
Georges Jeminet ◽  
Madeleine Tissier ◽  
...  
Keyword(s):  
Carboxylic Acids ◽  
Formation Constants ◽  
Side Chain ◽  
Complexing Ability ◽  
Potentiometric Measurements ◽  
Sodium And Potassium

We report here the synthesis of new polyoxygenated macrocyclic derivatives with a benzodioxinic subunit and a carboxylic side chain (2, 3), along with some of their corresponding acyclic polyethers (1). Formation constants of sodium and potassium complexes with both the acid and anion forms of these compounds were obtained from potentiometric measurements. The enhancement of both complexing ability and selectivity afforded by the presence of a carboxylic side chain is discussed. Keywords: polyether carboxylic acids, macrocycles, benzo-1,4-dioxin, sodium and potassium complexes, solvent methanol.

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