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微波辐射下浓硫酸催化嘧啶酮的无溶剂合成 被引量:1

Synthesis of substituted 3,4-dihydropyrimidin-2(1-H)-ones under microwave irradiation and solvent-free condition catalyzed by sulphuric acid
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摘要 微波辐射下,以浓硫酸为催化剂,芳香醛、尿素和乙酰乙酸乙酯为原料,无溶剂下发生B iginelli缩合反应,高产率地合成了10个3,4二-氢嘧啶-2酮-衍生物。该方法不仅反应条件温和,反应时间短,避免使用昂贵的催化剂,后处理过程简单,而且避免了使用溶剂给环境带来的污染,具有绿色合成的特点。 Ten Substituted 3,4- dihydropyrimidin-2( 1 -H) -ones were synthesized by three -component one -pot reaction of aromatic aldehydes, ethyl acetoacetate and urea using sulphuric acid as catalyst under microwave irradiation and solvent - free conditious. Advantages of the present method are the excellent yield, operational simplicity and avoidance of the use of solvent.
出处 《化学研究与应用》 CAS CSCD 北大核心 2006年第8期927-930,共4页 Chemical Research and Application
基金 国家自然科学基金资助项目(20272047 20572086) 甘肃省自然科学基金资助项目(3ZS051-A25-001) 甘肃省高分子材料重点实验室基金资助项目
关键词 芳香醛 尿素 乙酰乙酸乙酯 微波 3 4-二氢嘧啶-2-酮衍生物 合成 aryl aldehydes urea ethyl actoacetone microwave substituted 3,4 - dihydropyrimidin - 2 ( 1 - H) - ones green synthesis
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