prov:value
| - ulfoxide, or N-methylpyrrolidone; acetonitrile, or pyridine, and in the optional presence of a neutralizer such as sodium carbonate, calcium carbonate, sodium hydrogencarbonate, triethylamine, 1,8-diazabicyclo[5.4.0]undecene (DBU) at room temperature to 160??? C. The reaction period is from several minutes to 48 hours, and preferably, from 10 minutes to 24 hours.
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