3,4-Dihydropyrimidin-2(1H)-ones were efficiently converted into the corresponding pyrimidin-2(1H)-ones in high yields within a short period of time on treatment with aqueous acetonitrile using 1,4-bis(triphenylphosphonium)-2-butene peroxodisulfate. Chemoselective oxidation of 3,4-dihydropyrimidin in the presence of other oxidizable functional groups was also achieved by this reagent.
3,4-二氢
嘧啶-2(1H)-酮在1,4-双(
三苯基膦)-
2-丁烯过
硫酸盐
水溶液
乙腈中处理下,短时间内高效转化为相应的
嘧啶-2(1H)-酮,产率很高。该试剂还能在其他可氧化官能团的存在下实现3,4-二氢
嘧啶的选择性氧化。