Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Tertiary polyamines, chelating

Telomerization of butadiene and isoprene with aromatics and olefins proceeds rapidly at 0°-100°C using organosodium catalysts in combination with aliphatic tertiary chelating polyamines containing two to six nitrogens. The products range from monoadduct up to tacky semisolids. [Pg.209]

The preferred chelating agents are derivatives of ethylenediamine, higher polyamines, and isomers. The particular tertiary chelating polyamines discussed here together with their abbreviations are (they are all permethylated polyamines) ... [Pg.210]

Chelating tertiary polyamines have a dramatic effect on the reactivity and properties of organolithium compounds. The chelates are new compositions which are rapidly finding wide use as unique catalysts and chemical reagents. [Pg.9]

Our background with chelate complexes suggested the use of Group IA and IIA metal salts for selective polyamine complexation. The specificity of the interaction between alkali-metal and alkaline-earth salts and certain polyamines provides a sensitive technique for separating single polyamines from multicomponent samples. These separations, the factors that affect complex formation, and the unique properties of the poly-tertiary amine chelates of inorganic lithium compounds are discussed in this paper. [Pg.151]

The high solubility of tertiary polyamine-alkali-metal salt chelates in benzene has been mentioned briefly. The data in Table XI illustrate the range of solubilities observed for LiBr and LiNO chelates of bi-, tri-, tetra-, and pentadentate tertiary amine ligands. Benzene solutions containing several moles of chelate have been obtained. [Pg.166]


See other pages where Tertiary polyamines, chelating is mentioned: [Pg.210]    [Pg.53]    [Pg.3]    [Pg.7]    [Pg.29]    [Pg.150]    [Pg.161]    [Pg.210]   
See also in sourсe #XX -- [ Pg.202 ]




SEARCH



Polyamine

Polyamines

© 2024 chempedia.info