Pyrrolidinium iodide

Alkylation of enamino ketones occurs on oxygen, as would be expected from the site of protonation. Thus 4-N-pyrrolidino-3-penten-2-one (47) gave N-(2-ethoxy-2-penten-4-ylidene)-pyrrolidinium iodide (48) on alkylation with ethyl iodide (22), and the enamino ketones derived from 5,5-... 

CCH300 CAS 22041-28-7 HR 3 1-CARBOXYMETHYL-1-METHYL-PYRROLIDINIUM IODIDE METHYL ESTER... 

In aqueous solutions of the acetylenic amino-alcohols (288) nucleophilic attack of the nitrogen on the triple bond, followed by treatment with hydri-odic acid, gives the pyrrolidinium iodides (289). ... 

SYN PYRROLIDINIUM, 1-CARBOXYMETHYL-l-METHYL-, IODIDE, METHYL ESTER... 

Ionic liquids (ILs) with their outstanding solvent properties, that is, high conductivity, tunable polarity, zero volatility, and high thermal stability, are of growing interest in different fields of application including as a solvent component in microemulsions [6,7]. Thus, the tunable polar properties are of special interest. Therefore, ILs can be used as polar [8-11] as well as nonpolar solvents [12,13], Moreover, ILs can show amphiphilic behavior [14] and are called IL sirnfactants [15], Their physical properties can be adjusted in a characteristic way by varying the molecular structure of ILs. Since the ILs are sterically mismatched ions, they hinder crystal formation. Different cations, for example, ammonium, phosphonium, sulfonium, imidazolium, pyridinium, or pyrrolidinium, with different anions, for example, chloride, bromide, iodide, fluoroborate, or fluorophosphates, can be selected for a broad range of combinations [6]. 

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