New selective syntheses of (meth)acrylic monomers: Isocyanates carbamates ureas and isocyanurates derivatives.
作者:Yves Fort、Christine Gottardi、Paul Caubère
DOI:10.1016/s0040-4039(00)79246-x
日期:1993.6
Condensation of sodium cyanate with haloalkyl(meth)acrylates under appropriate phase transfer catalytic conditions led to the selective formation of monomers containing isocyanate, carbamate, urea or isocyanurate group. The selectivity of these new syntheses of such derivatives depends on the temperature and the water content of the reaction medium.
New selective syntheses of (meth)acrylic monomers: Isocyanates, isocyanurates, carbamates and ureas derivatives
作者:Christine Dubosclard-Gottardi、Paul Caubère、Yves Fort
DOI:10.1016/0040-4020(95)00005-s
日期:1995.2
conveniently obtained by simple condensation of potassium cyanate with ω-halogeno-alkyl (meth)acrylates under appropriated phase transfer catalytic conditions. Depending on the reaction media and the temperature, these isocyanate derivatives may be isolated, trimerized to the corresponding isocyanurates or trapped in situ as carbamates or ureas compounds.