3-Ethyl 5-methyl 2,6-bis(trifluoromethyl)-4-chloro-3,5-pyridinedicarboxylate 、
potassium carbonate 、
乙硫醇 以
丙酮 为溶剂,
79.0 ℃
、4.4 kPa
条件下,
以to give 2.11 g (58.8%) of product as a clear oil的产率得到3-Ethyl 5-methyl 4-ethylthio-2,6-bis(tri fluoromethyl)-3,5-pyridinedicarboxylate