There is disclosed a process for producing a 2-substituted thiopyrimidine-4-carboxylate represented by the formula (3):
1
wherein R
2
represents a substituted or unsubstituted hydrocarbon group and R
3
represents a hydrocarbon group,
which comprises reacting an &agr;-keto ester compound represented by the formula (1):
R
1
OCH═CHCOCO
2
R
2
(1)
wherein R
1
represents a substituted or unsubstituted hydrocarbon group, and R
2
has the same meaning as defined above,
with an isothiourea compound represented by the formula (2):
2
wherein R
3
has the same meaning as defined above.
揭示了一种制备由式(3)表示的2-取代
硫代
嘧啶-4-
羧酸酯的方法:
其中R2代表取代或未取代的碳氢基团,R3代表碳氢基团,包括将由式(1)表示的α-
酮酯化合物:
R1OCH2CHCOCO2R2(1)
其中R1代表取代或未取代的碳氢基团,R2具有与上述定义相同的含义,与由式(2)表示的异
硫脲化合物反应:
(2)
其中R3具有与上述定义相同的含义。