We studied and optimized the reaction by carrying out experiments under vari- ous temperatures, pressures, concentrations, and reaction times [531. The catalysts tested, either alone or in combinations, and the results obtained are reported in Table 13.3. The yield and conversion obtained in scCOz or scN20 is comparable to that achieved using the conventional process.From Table 13.3 it follows that the highest yield is obtained in scN20and SCCOZ in the presence of HN(SOzCF3)z or AgN(SOzCF3)z as catalyst. The experiments show that there is no significant temperature or pressure effect on the yield at
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