Synthesis of novel 4-pyrazolyl-2-oxo-1,2,3,4-tetrahydropyrimidines promoted by phosphotungstic acid
作者:Ganesabaskaran Sivaprasad、Paramasivan T. Peramal
DOI:10.1002/jhet.5570420518
日期:2005.7
Phosphotungstic acid, a keggin's type heteropoly acid catatalysed Biginelli reaction was carried out using pyrazole aldehyde, ethyl acetoacetate and urea to synthesis novel 4-pyrazolyl -2-oxo-1,2,3,4-tetrahydropy- rimidines.
使用吡唑醛,乙酰乙酸乙酯和尿素进行磷钨酸(一种Keggin型杂多酸催化的Biginelli反应),合成了新颖的4-吡唑基-2-氧代-1,2,3,4-四氢嘧啶-嘧啶。