- IMINIUM SALTS AND METHODS OF PREPARING ELECTRON DEFICIENT OLEFINS USING SUCH NOVEL IMINIUM SALTS
-
This invention relates to novel iminium salts, which may be in the form of ionic liquids, and a process for producing electron deficient olefins, such as 2-cyanoacrylates, using such an iminium salt, for instance in the form of an ionic liquid.
- -
-
Page/Page column 37
(2008/12/05)
-
- Synthesis of functionally substituted 2-cyanoacrylates
-
The conditions for the Knoevenagel synthesis of 2-cyanoacrylates containing double and triple bonds in the alkoxycarbonyl group have been studied.It was found that the esters are formed in 10-70percent yields by the condensation of the respective cyanoacetates with formaldehyde in the 1:1 ratio in the presence of piperidine, followed by the pyrolysis of the oligomers formed in vacuo at 170-200 deg C in the presence of para-toluenesulfonic acid.The compounds synthesized readily undergo polymerization at room temperature and can be used as the basis for themostable readily polymerizing adhesives. - Key words: cyanoacetates, 2-cyanoacrylates, paraform, formaldehyde, 2-cyanoacrylates.
- Guseva, T. I.,Senchenya, N. G.,Mager, K. A.,Tsyryapkin, V. A.,Gololobov, Yu. G.
-
p. 595 - 598
(2007/10/02)
-