Ac. Blanc et al., The preparation and use of novel immobilised guanidine catalysts in base-catalysed epoxidation and condensation reactions, GREEN CHEM, 2(6), 2000, pp. 283-288
Novel guanidine bases supported on silicas and Micelle Templated Silicas (M
TS) have been prepared, and investigated in the base catalysed epoxidation
of electron deficient alkenes with excellent conversions and selectivities
both with respect to the alkene and the primary oxidant. They are also effi
cient catalysts for the condensation of malonic acid with heptanal.