| abstract |
A method of converting a reagent to a reaction product in the presence of a solid acid catalyst comprising sulfonic acid groups covalently bonded with a polymer chain comprises the conversion accelerator, on an equivalent acid basis sulfonic, by adding, as a polymer chain, a compound represented by the general formula: M (O3ZOxR) n in which M is a tetravalent metal ion; Z is a pentavalent atom selected from the group consisting of elements from group V of the periodic table of elements having an atomic weight greater than 30; x varies from 0 to 1; R is selected from the group consisting of organic radicals and mixtures of hydrogen radicals and organic radicals; and n varies from 1 to 2; provided that n is equal to 1 when R ends in a pentavalent trioxide or tetraoxide atom. |