BIGINELLI相关论文
将改性高岭土负载Fe(Ⅲ)后,催化芳香醛、β-二羰基化合物及脲三组分反应,合成3,4-二氢嘧啶-2-酮类化合物。反应收率高、后处理简单、时......
以芳香醛、乙酰乙酸乙酯及脲为原料,I2负载蒙脱土为催化剂,对超声条件下Biginelli反应进行研究。用单因素法考察溶剂及催化剂对产......
六水合氯化镍催化下 ,β 酮酸酯、芳香醛和脲在无水乙醇中进行环化缩合反应 ,合成了 3,4 二氢嘧啶 2 酮衍生物 ,改进了Biginelli......
在微波辐射下 ,以离子液体 1 丁基 3 甲基咪唑四氟硼酸盐 ([bmim]BF4)为催化剂 ,三组分一锅法Big inelli缩合反应快速地合成了 10......
在NaHSO4作催化剂,无溶剂下将水杨醛、活泼亚甲基化合物和尿素或硫脲进行Biginelli反应,高收率地合成了一系列monastrol类物质.产......
以金属硫酸氢盐M(HSO4)n(Ca(HSO4)2, Zn(HSO4)2和过硫酸氢钾制剂oxone(R))为催化剂催化醛、1,3-二羰基化合物和尿素进行缩合反应,在90 ℃及无......
文章研究了用简单易得,而且便宜的二氧化硅作为催化剂的Biginelli反应,一锅法制备3,4-二氢嚷啶-2-酮。考察不同的芳香醛和脲及硫脲与......
本文报道了布朗斯特酸性离子液体1,3-二羧甲基咪唑对甲苯磺酸盐作为一种绿色、环境友好的催化剂,成功地催化Biginelli三组分反应合......
在磷酸二氢钾催化下,以苯甲醛、乙酰乙酸乙酯、尿素为原料,一步合成了5-乙氧羰基-4-苯基-6-甲基-3,4-二氢嘧啶-2-酮。确定最佳合成条......
An efficient and greener synthesis of a series of dihydropyrimidinone (DHPMs) derivatives were accomplished via three-co......
An efficient and greener synthesis of a series of dihydropyrimidinone (DHPMs) derivatives were accomplished via three-co......
Various 3,4-dihydropyrimidinones can be prepared via Biginelli reaction in aqueous media by using quaternary ammonium sa......
[Hmim][Tfa] was used as catalyst for the Biginelli reaction under microwave heating. Low catalyst loading, reduced react......
A protocol for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones and-thiones was developed by means of a three-component co......
An efficient synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives using formic acid as catalyst, from aldehydes,β-ke......
H_3PMo_(12)O_(40) catalyzed three-component one-pot synthesis of 4,6-diarylpyrimidin-2(1H)-ones unde
4,6-Diarylpyrimidin-2(1H)-one derivatives have been synthesized from three-component one-pot condensation of acetophe-no......
A simple, green and highly efficient procedure for the Biginelli condensation reaction of aldehydes, β-ketoesters, urea......
New Method for the Synthesis of 1-Methylimidazolium Trifluoroacetate and Its Application in Biginell
A new method for the synthesis of 1-methylimidazolium trifluoroacetate ([Hmi]Tfa), a protic ionic liquid (PIL), under ul......
1893年,意大利化学家Pietro Biginelli首次报道了在催化量的盐酸条件下,乙酰乙酸乙酯与尿素和苯甲醛发生环缩合生成了3,4-二氢嘧啶......
自进入21世纪以来,社会的可持续发展及其所涉及的生态、环境、资源、经济等方面的问题愈来愈成为国际社会关注的焦点,被提到发展战......
嘧啶及噻吩类杂环衍生物广泛存在于生物体及自然界中。由于具有重要的药理活性、生物活性以及医学特性,一直以来人们对开发新的简......
C60因其独特的结构以及在抗菌、抗HIV病毒、DNA裂解、抗肿瘤以及酶活性抑制等方面具有的独特功效和生物活性而受到广泛关注。C60对......
学位
镓处于元素周期表中第四周期第三主族。其周围的元素有:Mg、Al、Si、Ge、Sn、Cd、In等,其中大部分元素的试剂在有机合成中都有其独......